If we look at any mechanical device, for instance, we see that it is composed of many diverse parts.
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Once again, 3D guns come to mind, but also pieces for drones or any other mechanical device requiring stable, reliable parts.
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Sometimes it's nice to just put on a regular watch and enjoy the fine craftsmanship and design of a mechanical device.
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As the Roman people filled the Forum, a mechanical device rotated the model slowly, revealing the 23 "gaping" wounds to everyone.
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For this reason, replacing the human heart with an off-the-shelf mechanical device is a great ambition of cardiologists and surgeons.
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As a lone mechanical device, you need to scale three-dimensional towers avoiding enemy bugs, all while the robot's energy slowly drains.
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Technologically speaking, becoming Iron Man could be feasible by enhancing your strength through a mechanical device, especially in comparison to becoming Captain America.
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A previous version of this article contained a picture caption that referred incorrectly to a mechanical device for extracting oil from the ground.
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Finn, meanwhile, is enlisted to build a massive telescope for Arthur, and is also secretly devising a mechanical device for Caroline Ainsworth's damaged arm.
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The combined efforts of Harper doctors and G.M. engineers would produce a miraculous machine — a mechanical device that would temporarily replace Mr. Opitek's heart.
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Happily, it is being preserved as a purely mechanical device, driven by a weight that is wound up every week and allowed to drop slowly.
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Prince uses an ink jet printer or similar mechanical device to make enlarged versions of these drawings, which are affixed to the stretched canvas surface.
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They've had access to Google's machine learning expertise and to X's "design kitchen," a 23,000-square-foot workshop for prototyping any mechanical device they could think of.
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Watchmaker Jaquet Droz announced its Signing Machine — a mechanical device that will sign your name for you using a series of miniature gears and springs — in 2014.
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Only about half the patients who were screened qualified for treatment, known as thrombectomy, which uses a mechanical device to pull clots out of a blood vessel.
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Law enforcement used the All Writs Act to compel New York Telephone Co. to install a pen register, a mechanical device that records the numbers dialed in the phone.
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When the organist strikes a key on the instrument, the corresponding mallet strikes the stalactites, all coordinated via a hidden mechanical device that receives electrical signals from the organ.
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What a solution to the condition will look like depends what else we learn: it could be a medication, or a mechanical device to help redistribute fluid, or something else entirely.
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A mechanical device called a damper — a kind of shock absorber typically installed on the roof of towers to reduce the queasy feeling of building sway — was rarely used before 2005, he said.
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Dr. Muscutt used a 3D printer to create two faux flippers to represent one side of a plesiosaur and attached them to a mechanical device that aimed to mimic how the creature moved.
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Finally, the recent reconstruction of the 231 piece "Apparatus for Understanding" by Victor Skersis is a bizarre mechanical device consisting of a small wooden platform with a hammer poised on one end and a square block on another.
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The process, which is thus far unproven, goes something like this: the body is cooled immediately after death to prevent brain damage; the heart and lung are artificially restarted using a mechanical device; "protective medications" are administered; and blood is removed from the body and replaced with cryo-protectant fluid to prevent ice crystals from forming and damaging cells.
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This idea spawned a whole new type of mechanical device known as the "trade stimulators".
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He called his invention a monoplane rather than an airplane, hoping to achieve automatic stability by construction and without mechanical device.
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Charles Hederer (2 August 1886 – 24 September 1967) was the inventor of the 'pulmoventilateur' a mechanical device used for artificial respiration.
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The Torquetum was invented by Jabir ibn Aflah. He invented an observational instrument known as the torquetum, a mechanical device to transform between spherical coordinate systems.
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An unheated metal eyelash curler An eyelash curler is a hand-operated mechanical device for curling eyelashes for cosmetic purposes. Usually, only the upper eyelashes are curled.
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The cotton gin was invented in India as a mechanical device known as charkhi, the "wooden-worm-worked roller".Baber, 57 This mechanical device was, in some parts of the region, driven by water power. The Ajanta Caves yield evidence of a single roller cotton gin in use by the 5th century.Baber, 56 This cotton gin was used until further innovations were made in form of foot powered gins.
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Scarpa's shoe was an 18th-century mechanical device developed to treat clubfoot. It never became widely accepted. It was designed by Antonio Scarpa, an Italian anatomist and surgeon.
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Diagram of Beugniot lever The Beugniot lever (Beugniot-Hebel) is a mechanical device used on a number of locomotives to improve curve running. It was named after its inventor Édouard Beugniot.
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A squash ball machine is a mechanical device that automatically throws out squash balls at different speeds and angles. Its main purpose is to help players to develop their ball hitting technique.
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As any mechanical device, it can and will break eventually. An archer who does not have an extra release may end up shooting with his fingers, which changes draw length and accuracy.
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In humans, and occasionally in animals, a mechanical device called an artificial pacemaker (or simply "pacemaker") may be used after damage to the body's intrinsic conduction system to produce these impulses synthetically.
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Initially, the axle was lifted by a mechanical device. Soon hydraulics replaced the mechanical lift system. One of the early manufacturers was Zetterbergs, located in Östervåla, Sweden. Their brand was Zeta-lyften.
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Colored LEDs highlighting the bridge piers at dusk The bridge is the largest mechanical device in Oregon. 36 ft. tall gears drive 940-ton counterweights located inside each of the piers. The 69 ft.
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This mechanical device was, in some areas, driven by water power.Baber, Zaheer (1996). The Science of Empire: Scientific Knowledge, Civilization, and Colonial Rule in India. Albany: State University of New York Press. p. 57. .
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A stamp vending machine is a mechanical, electrical or electro-mechanical device which can be used to automatically vend postage stamps to users in exchange for a pre-determined amount of money, normally in coin.
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The abacus is an early mechanical device for performing elementary arithmetic, which is still used in many parts of Asia. Modern calculating tools that perform elementary arithmetic operations include cash registers, electronic calculators, and computers.
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A particular type of harmonograph, a pintograph, is based on the relative motion of two rotating disks, as illustrated in the links below (as opposed to a pantograph, a mechanical device used to enlarge figures).
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Through Billy Cotton, the band leader (a friend of his who was also an amateur racing driver), he took an active interest in cars and car racing. he was intrigued by any new mechanical device.
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"Observation and interpretation of motional sideband asymmetry in a quantum electro-mechanical device,"A.J. Weinstein, C.U. Lei, E.E. Wollman, J. Suh, A. Metelmann, A.A. Clerk, K.C. Schwab, Science Vol. 344, pp. 1262-1265 DOI: 10.1126/science.
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The second requires some means of capturing successive frames, either with a mechanical device or by moving data off electronic sensors very quickly. Other considerations for high-speed photographers are record length, reciprocity breakdown, and spatial resolution.
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This is the precursor to the concept of the "standard projectile". In 1742, Benjamin Robins invented the ballistic pendulum. This was a simple mechanical device that could measure a projectile's velocity. Robins reported muzzle velocities ranging from to .
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A pulverizer or grinder is a mechanical device for the grinding of many different types of materials. For example, a pulverizer puritch is used to pulverize coal for combustion in the steam-generating furnaces of coal power plants.
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An example of a viscous coupling unit opened up The fluid inside the VC Completely disassembled The internal plates A viscous coupling is a mechanical device which transfers torque and rotation by the medium of a viscous fluid.
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The UK patents covering the mechanical device(s) would have expired in about 1941-1942 (i.e. 20 years after filing of the patent) but copyright in the drawings would typically only expire 70 years after the author's death.
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But this is polar equation :r=2a\sin^2\theta/\cos\theta given above with θ=Ψ/2. Note that, as with the double projection construction, this can be adapted to produce a mechanical device that generates the curve.
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When the necessary procedures are complete, the catheter is removed. Firm pressure is applied to the site to prevent bleeding. This may be done by hand or with a mechanical device. Other closure techniques include an internal suture and plug.
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The deployment of a mechanical device, electrical system, computer program, etc., is its assembly or transformation from a packaged form to an operational working state. Deployment implies moving a product from a temporary or development state to a permanent or desired state.
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The variable capacitor is a mechanical device in which the separation of a series of interleaved metal plates is physically altered to vary its capacitance. Adjustment of this capacitor is sometimes facilitated by a mechanical step-down gearbox to achieve fine tuning.
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To top it off, Jacobs played the harmonica while keeping the bass drum, cymbals and bells going. Jacobs's most notable mechanical device was the midget car. This act took him about four years to perfect. The first prototypes were made in 1944.
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250pxA submersible mixer is a mechanical device that is used to mix sludge tanks and other liquid volumes. Submersible mixers are often used in sewage treatment plants to keep solids in suspension in the various process tanks and/or sludge holding tanks.
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When climbing with a load, safe material handling includes maintaining contact with the ladder or stairs at three points (two hands and a foot or both feet and a hand). Bulky loads would require a second person or a mechanical device to assist.
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Disc brake on a motorcycle A brake is a mechanical device that inhibits motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by means of friction.
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A mechanical device with 3D printed snapper claw at five times the actual size was also reported to emit light in a similar fashion, this bioinspired design was based on the snapping shrimp snapper claw molt shed from an Alpheus formosus, the striped snapping shrimp.
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The Indian version of the dual-roller gin was prevalent throughout the Mediterranean cotton trade by the 16th century. This mechanical device was, in some areas, driven by water power.Baber, Zaheer (1996). The Science of Empire: Scientific Knowledge, Civilization, and Colonial Rule in India.
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This motion is still used today by railroad workers to indicate stop per the General Code of Operating Rules (GCOR) Rule 5.3.1. It was presumed that a mechanical device that mimicked that movement would catch the eye of approaching motorists and give an unmistakable warning.
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Wieck claimed that Schumann damaged his finger by using a mechanical device that held back one finger while he exercised the others—which was supposed to strengthen the weakest fingers. Clara Schumann discredited the story, saying the disability was not due to a mechanical device, and Robert Schumann himself referred to it as "an affliction of the whole hand." Some argue that, as the disability appeared to have been chronic and have affected the hand, and not just a finger, it was not likely caused by a finger strengthening device. Schumann abandoned the idea of a concert career and devoted himself instead to composition.
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Where it has been proved that a "mechanical device" is normally in "good working order", it will be presumed, until the contrary is proved, that it was in good working order on any relevant occasion.Cooper, Simon & Murphy, Peter & Beaumont, John. Cases & Materials on Evidence. Fourth Edition.
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A mechanical device that computes area integrals is the planimeter, which measures the area of plane figures by tracing them out: this replicates integration in polar coordinates by adding a joint so that the 2-element linkage effects Green's theorem, converting the quadratic polar integral to a linear integral.
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A honey extractor is a mechanical device used in the extraction of honey from honeycombs. A honey extractor extracts the honey from the honey comb without destroying the comb. Extractors work by centrifugal force. A drum or container holds a frame basket which spins, flinging the honey out.
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In 1881, Camille Alphonse Faure would develop a more efficient and reliable model that saw great success in early electric cars. Planté also investigated the differences between static electricity and dynamic electricity (i.e., from batteries). As part of this investigation, Planté invented a mechanical device that he called the Rheostatic Machine.
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The Japanese M-1 cipher machine was a mechanical device the Japanese used for performing cryptography sometime during the 1930s. More specifically it was used by naval attaches. The US called it the ORANGE machine. Cryptographically it is similar to the Red cipher; it was broken by Agnes Driscoll (Madame X).
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At the distant location the impulses are converted into magnetic fields that operate a mechanical device to make a sound or to move a visual indicator. The operator at the receiving end converts these sounds or signals into a written message. The code system used throughout Australia was the Morse code.
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Mark-50 torpedo propulsor A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle and pump-jet are examples. An example propulsor is shown in the accompanying picture.
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A refreshable braille display or braille terminal is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Computer users who cannot use a computer monitor use it to read a braille output version of the displayed text.
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The Equatorium is an invention from Al-Andalus, by Al-Zarqali. The earliest known was made in the eleventh century. It is a mechanical device for finding the positions of the moon, sun, stars and planets, without calculation using a geometrical model to represent the celestial body's mean and anomalistic position.
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This has been ascribed to the anxiety he must have experienced while facing the new mechanical device which could reveal even the slightest detail."Aymard Charles Théodore Neubourg: Thorvaldsen 1840", Thorvaldsens Museum. Retrieved 5 April 2010."Description of Bertel Thorvaldsen: A Daguerrotype Portrait from 1840", Krisostomos. Retrieved 5 April 2010.
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Erector remains a very versatile constructional medium. Almost any mechanical device can be built with this system, from structures, to complex working cranes, automatic gearboxes or clocks. It is frequently used to prototype new ideas and inventions. Model realization using Erector is limited only by the imagination and ingenuity of the builder.
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In Roman Egypt, Heron of Alexandria invented the aeolipile, a basic steam-powered device, and demonstrated knowledge of mechanic and pneumatic systems. He was also the first to experiment with a wind-powered mechanical device, a windwheel. He also described a vending machine. However, his inventions were primarily toys, rather than practical machines.
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Enjoys sweets and candy to a pitiful extent. Talks through a mechanical device attached to his neck. He was in charge of keeping Nishizono Tetora under control by supplying him with medicines which must be taken in sequential order based on the numbers printed on the pills. He calls these pills "candies".
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Koen van den Broek, Valiz, Amsterdam, 2010, p. 55. This use of photography has consequences for the composition. In contrast to human interpretation, which tries to structure what is important and what is not, the mechanical device blurs this difference. By his cadrage he always seems to leave out the most important part.
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A stairlift is a mechanical device for lifting wheelchairs up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs, or attached to the wall. A chair is attached to the rail and the person on the chair is lifted as the chair moves along the rail.
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Paper shredder with built-in wastebasket Inner view of a paper shredder with motor Detail of a cross-cut paper shredder A paper shredder is a mechanical device used to cut paper into either strips or fine particles. Government organizations, businesses, and private individuals use shredders to destroy private, confidential, or otherwise sensitive documents.
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The Communications Machine, or "CM", is a mechanical device used by the United States Navy for the most of the 1920s. It used a sliding alphabet system. It was developed by Agnes Meyer Driscoll and William Gresham. In 1937 the United States Congress recognized the achievement of these two by awarding them both $15,000.
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Logical NAND algorithm implemented electronically in 7400 chip Most algorithms are intended to be implemented as computer programs. However, algorithms are also implemented by other means, such as in a biological neural network (for example, the human brain implementing arithmetic or an insect looking for food), in an electrical circuit, or in a mechanical device.
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When a metal contaminant is introduced into the product an unequal disturbance is created. This then creates a very small electronic signal. After suitable amplification a mechanical device mounted to the conveyor system is signaled to remove the contaminated product from the production line. This process is completely automated and allows manufacturing to operate uninterrupted.
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Stall torque is the torque produced by a mechanical device whose output rotational speed is zero. It may also mean the torque load that causes the output rotational speed of a device to become zero, i.e., to cause stalling. Electric motors, steam engines and hydrodynamic transmissions are all capable of developing torque when stalled.
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In 1998 Shapiro presented a conceptual design for an autonomous, programmable molecular Turing machine, realized at the time as a mechanical device, and a vision of how such machines can cause a revolution in medicine.Shapiro E., 1999 A mechanical Turing machine: blueprint for a biomolecular computer. In Paper presented at the Proc. 5th Int.
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A gear coupling A gear coupling is a mechanical device for transmitting torque between two shafts that are not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected by a third shaft, called the spindle. Each joint consists of a 1:1 gear ratio internal/external gear pair.
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A passage leads from the forecourt to the 1.5 meter long and 3 meter wide antechamber of the tomb. The burial chamber, measuring 3 by 4 meters, was protected by heavy doors. In order to be able to open them more easily, there was a mechanical device. The doors can be seen in the Louvre in Paris.
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Along with his colleague Harold Dibble, Whittaker developed a mechanical device that flaked stone a controlled, repeatable manner. This allowed for the precise study of the effects of force on reduction angles. In 1979, Whittaker and Dibble taught a course on experimental archaeology and knapping. Whittaker obtained his master's degree from Arizona in 1979 and his doctorate in 1984.
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Robot software is the set of coded commands or instructions that tell a mechanical device and electronic system, known together as a robot, what tasks to perform. Robot software is used to perform autonomous tasks. Many software systems and frameworks have been proposed to make programming robots easier. Some robot software aims at developing intelligent mechanical devices.
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The most common MEMS accelerometer in use is the ADXL-50 by Analog Devices, but there are other MEMS manufacturers as well. Initial attempts using mercury switches did not work well. Before MEMS, the primary system used to deploy airbags was called a "rolamite". A rolamite is a mechanical device, consisting of a roller suspended within a tensioned band.
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The study of timekeeping is known as horology. Watches progressed in the 17th century from spring-powered clocks, which appeared as early as the 14th century. During most of its history the watch was a mechanical device, driven by clockwork, powered by winding a mainspring, and keeping time with an oscillating balance wheel. These are called mechanical watches.
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The biological screw joint is a naturally occurring form of the screw joint, a mechanical device that combines rotational movement with single-axis translation. Alexander Riedel of the State Museum of Natural History Karlsruhe and Thomas van de Kamp of the Karlsruhe Institute of Technology discovered it in specimens of Trigonopterus oblongus, a weevil found in Papua.
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The ground speed was determined from the Doppler shift between the forward and aft facing beams. These were displayed on the flight deck on single instrument. Some aircraft had an additional 'Doppler Computer'. This was a mechanical device containing a steel ball rotated by a motor whose speed was controlled by the Doppler determined ground speed.
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In a dynamical system, bistability means the system has two stable equilibrium states. Something that is bistable can be resting in either of two states. An example of a mechanical device which is bistable is a light switch. The switch lever is designed to rest in the "on" or "off" position, but not between the two.
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The gun was fitted with both telescopic sight for direct fire and panoramic sight for an indirect one. For ballistic calculations and meteorological corrections a special mechanical device was developed. The device, called meteoballistic summator, consisted of a specialized slide rule and a pre-calculated table. After World War II similar devices were introduced for other types of guns.
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Each revolution of the wheel measures a specific distance, such as a yard, metre or half-rod. Thus counting revolutions with a mechanical device attached to the wheel measures the distance directly. Surveyor's wheels will provide a measure of good accuracy on a smooth surface, such as pavement. On rough terrain, wheel slippage and bouncing can reduce the accuracy.
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Csonka transaxle from 1908 Drawing of the "Alfa Transaxle" layout, with gearbox mounted in block at the rear differential; also inboard brakes to reduce unsprung mass A transaxle is a single mechanical device which combines the functions of an automobile's transmission, axle, and differential into one integrated assembly. It can be produced in both manual and automatic versions.
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In many cases, however, vibration is undesirable, wasting energy and creating unwanted sound. For example, the vibrational motions of engines, electric motors, or any mechanical device in operation are typically unwanted. Such vibrations could be caused by imbalances in the rotating parts, uneven friction, or the meshing of gear teeth. Careful designs usually minimize unwanted vibrations.
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Components such as clutches or gearboxes may be needed to connect the motor to axles, wheels, or propellers. Biological propulsion systems use an animal's muscles as the power source, and limbs such as wings, fins or legs as the propulsors. A technological/biological system may use human, or trained animal, muscular work to power a mechanical device.
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John C. Stennis A shear pin is a mechanical detail designed to allow a specific outcome to occur once a predetermined force is applied. It can either function as a safeguard designed to break to protect other parts, or as a conditional operator that will not allow a mechanical device to operate until the correct force is applied.
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It's > an interesting process, the element of chance. Some tracks also used the Gizmo, a mechanical device invented by Godley, Creme, and John McConnell (professor of physics at the University of Manchester) to give a guitar a bowed effect like a violin. The device used keys which, when pressed, allowed rotating wheels to touch the guitar strings.
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Eric Laithwaite, the "Father of Maglev", received a US patent for his own propulsion system, which was claimed to create a linear thrust through gyroscopic and inertial forces. However, after years of theoretical analysis and laboratory testing of actual devices, no rotating (or any other) mechanical device has ever been found to produce unidirectional reactionless thrust in free space.
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Docking connectors for laptop computers are usually embedded into a mechanical device that supports and aligns the laptop and sports various single-function ports and a power source that are aggregated into the docking connector. Docking connectors would carry interfaces such as keyboard, serial, parallel, and video ports from the laptop and supply power to it.
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35 mm movie projector in operation Bill Hammack explains how a film projector works. A movie projector is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras. Modern movie projectors are specially built video projectors.
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The Hardy Boys novel While the Clock Ticked was (originally) about a locked and isolated room where a man seeks privacy, but receives mysterious threatening messages there. The messages are delivered by a mechanical device lowered into the room through a chimney. King Ottokar's Sceptre (1938-1939) is the only Tintin adventure that is a locked-room mystery. No homicide is involved.
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She recognizes Thomas, but he cannot remember her. Thomas, Minho, Frypan, Winston, and Zart enter the Maze; locate the Griever corpse; and remove a beeping mechanical device from inside it. Gally claims that Thomas has jeopardized the fragile peace between the youths and the Grievers, and wants him punished. However, Newt, the group's second-in-command, instead designates Thomas as a Runner.
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A ratchet featuring a gear (1) and pawl (2) mounted on a base (3) A ratchet is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.
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A stairlift is a mechanical device for lifting people and wheelchairs up and down stairs. Sometimes special purpose lifts are provided elsewhere to facilitate access for the disabled, for example at entrances to raised bus stops in Curitiba, Brazil. A wheelchair lift is specifically designed to carry the user and the wheelchair. This can either be through floor or utilizing the staircase.
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The Pitney Bowes Model M postage meter 1920. A postage meter or franking machine is a mechanical device used to create and apply physical evidence of postage (or franking) to mailed items. Postage meters are regulated by a country's postal authority. A postage meter imprints an amount of postage, functioning as a postage stamp, a cancellation and a dated postmark all in one.
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Tandem Van de Graaff generators are essentially two generators in series, and can produce about 15 million volts. The Van de Graaff generator is a simple mechanical device. Small Van de Graaff generators are built by hobbyists and scientific apparatus companies and are used to demonstrate the effects of high DC potentials. Even small hobby machines produce impressive sparks several centimeters long.
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The most important clock which attracts the greatest number of visitors everyday is however, a British Bracket clock. It has got a mechanical device by which a miniature toy figure comes out of an enclosure and strikes the gong and then returns to the enclosure at each hour. The Indian Parliament has declared the museum an Institution of National Importance.
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Wakeskating was pioneered by Thomas Horrell in the United States. Wakeskating has become urbanized due to the advent of the "winch", a mechanical device with a small horizontal shaft engine that holds a spool of rope and pulls the rope in at riding speed. A wakeskate is an integral part of Wakeskating. There are five factors that differentiate one wakeskate from another.
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A steam turbine with the case opened. A turbine ( or ) (from the Greek , tyrbē, meaning "vortex", related to the Latin turbo, meaning a vortex,. is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator.
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To control the separation process, the operational parameters should be transferred from the rotating part to the stationary part of the decanter whilst also constantly controlling and maintaining the mechanical device inside the process region. This can be achieved using hydraulic and electronic transfer systems. A hydraulic drive motor is easily able to access the rotating area of the decanter centrifuge.
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Some people on an MDI regimen also use injection ports such as the I-port to minimize the number of daily skin punctures. The other method of intensive/flexible insulin therapy is an insulin pump. It is a small mechanical device about the size of a deck of cards. It contains a syringe- like reservoir with about three days' insulin supply.
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Radio telegraphy was much like ordinary telegraphy. One of the problems was building high power transmitters with the technology of the day. Early transmitters were spark gap transmitters. A mechanical device would make sparks at a fixed but audible rate; the sparks would put energy into a resonant circuit that would then ring at the desired transmission frequency (which might be 100 kHz).
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Handheld roller cotton gins had been used in India since the 6th century, and was then introduced to other countries from there. Between the 12th and 14th centuries, dual-roller gins appeared in India and China. The Indian version of the dual-roller gin was prevalent throughout the Mediterranean cotton trade by the 16th century. This mechanical device was, in some areas, driven by water power.
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AVENT isis manual breast pump Ameda Purely Yours Double Electric Breast Pump worn with D'Lite Hands-free Breast Pump Bra Hygeia Enjoye electric breast pump Medela Symphony electric breast pump A breast pump is a mechanical device that lactating women use to extract milk from their breasts. They may be manual devices powered by hand or foot movements or automatic devices powered by electricity.
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Simplified diagram of linear dashpot A dashpot is a mechanical device, a damper which resists motion via viscous friction. The resulting force is proportional to the velocity, but acts in the opposite direction, slowing the motion and absorbing energy. It is commonly used in conjunction with a spring (which acts to resist displacement). The process and instrumentation diagram (P&ID;) symbol for a dashpot is 35px.
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Cassidy's original trident was a mechanical device that he designed himself but, after being turned into an actual demon, he acquired the magical "Trident of Lucifer" to help combat demons. Blue Devil appeared in episodes of the Justice League Unlimited cartoon as well as a brief appearance in the Young Justice show. Cassidy was played by Ian Ziering in the television series Swamp Thing for DC Universe.
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In Petits Chevaux, also called Jeu des Petits Chevaux or Rösslispiel, there are the same betting options as in Boule. The winning number is not chosen, however, by throwing a ball, but by a mechanical device that simulates a horse race en miniature. Petits Chevaux was the predecessor of Boule. The pockets of many Boule wheels are decorated with pictures of horses in commemoration of Petits Chevaux.
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In 2001, Atelier de Recherche ALBA produced an installation in the "Théâtre de Beyrouth". It consisted of a theater seat place in a vitrine and being cut in two pieces by a mechanical device, thus reminding the work of Gordon Matta Clark. Also based on narratives, the piece was placed in the showcase window, in order to create an interaction with people passing by the street.
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Charles Fredrick Wiesenthal, a German-born engineer working in England was awarded the first British patent for a mechanical device to aid the art of sewing, in 1755. His invention consisted of a double pointed needle with an eye at one end. Newton Wilson's copy of Saint's sewing machine.Thomas Saint's chain stitch used on the first ever complete sewing machine design for leather work.
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Many of these studies have been coloured in or outlined in ink by later hands ("made worse by mending"), obstructing the analysis of Holbein's technique. Judging by the three-hour sitting given to him by Christina of Denmark, Holbein could produce such portrait studies quickly. Some scholars believe that he used a mechanical device to help him trace the contours of his subjects' faces.Ganz, 11; Foister, 103.
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The M-18 represented the first time a NACA 6-series airfoil had been used on a civil aircraft after World War II. The aircraft featured a unique "safe-trim" system. This mechanical device links the wing flaps to the tail trim system and automatically adjusts the horizontal stabilizer angle when the flaps are deflected, reducing or eliminating pitch changes when the flaps are lowered.
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A stepping switch is a multi-layer mechanical device that was commonly used at the time in telephone switching systems. Each layer has a set of electrical connects, 25 in the Type B, arranged in a semicircular arc. These do not move and are called the stator. A wiper arm on a rotor at the focus of the semicircle connects with one stator contact at a time.
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A torque amplifier is a mechanical device that amplifies the torque of a rotating shaft without affecting its rotational speed. It is mechanically related to the capstan seen on ships. Its most widely known use is in the power steering on automobiles. Another use is on the differential analyzer, where it was used to increase the output torque of the otherwise limited ball- and-disk integrator.
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In 1895, Curtis H. Veeder invented the Cyclometer. The Cyclometer was a simple mechanical device that counted the number of rotations of a bicycle wheel.Veeder-Root, Inc., Veeder Root History A cable transmitted the number of rotations of the wheel to an analog odometer visible to the rider, which converted the wheel rotations into the number of miles traveled according to a predetermined formula.
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A medical stairlift A stair lift is a mechanical device for lifting people up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail.
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Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. Machine components designed to manage forces and movement in this way are called mechanisms.
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Its central town is Ljutomer. The region is known for its first-class wines, food, and the specific dialect of its inhabitants, which has similarities to Prekmurje Slovene, with which it is mutually intelligible. The symbol of the region is the klopotec, a wooden mechanical device on a high wooden pole, similar to a windmill. Prleška tünka is a protected food product from Prlekija.
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A crankpin is a mechanical device in an engine which connects the crankshaft to the connecting rod for each cylinder. It has a cylindrical surface, to allow the crankpin to rotate relative to the "big end" of the connecting rod. The most common configuration is for a crankpin to serve one cylinder. However, many V engines have each crankpin shared by each pair of cylinders.
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A house jack, also called a screw jack, is a mechanical device primarily used to lift buildings from their foundations for repairs or relocation. A series of jacks is used and then wood cribbing temporarily supports the structure. This process is repeated until the desired height is reached. The house jack can be used for jacking carrying beams that have settled or for installing new structural beams.
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The algorithm appeared in a United States PatentUS Patent 2,950,048 – Computer for Verifying Numbers, Hans P Luhn, August 23, 1960 for a hand-held, mechanical device for computing the checksum. Therefore, it was required to be rather simple. The device took the mod 10 sum by mechanical means. The substitution digits, that is, the results of the double and reduce procedure, were not produced mechanically.
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Each level is presented as a new area with a mechanical device, and a set of buttons to press. Each button causes an animation and/or teleports Slap to another room. Sometimes the buttons are booby-trapped and cause the destruction of a variety of monuments. The grid also features a few game overs on the grid, marked by flashing skulls on the map.
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This might have actually been the design of Luoxia Hong (c. 110 BC), yet by at least 125 the mechanical odometer carriage was already known, as it was depicted in a mural of the Xiao Tang Shan Tomb. The south-pointing chariot was another mechanical device credited to Zhang Heng. It was a non-magnetic compass vehicle in the form of a two-wheeled chariot.
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Eugène Daguin was amongst the engineers who proposed "stamping machine" projects to the French posts. The latter was looking for a mechanical device that could quickly cancel an increasing amount of mail. Until the first trials of these machines, the clerk's arms were the only mean to cancel the stamp and to "stamp" the mail (print the date and place of departure).Nouazé, Yvon (2006).
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Figure skating guards are usually made of plastic with a simple spring or other mechanical device to hold the guards tightly to the blades. They can be found in many colors and with internal lights that blink as the skater walks. They are also called 'blade guards'. Figure skating guards historically were made of wood, but this has been supplanted in the last thirty years by plastic.
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In a more general context, a coupling can also be a mechanical device that serves to connect the ends of adjacent parts or objects. Couplings do not normally allow disconnection of shafts during operation, however there are torque limiting couplings which can slip or disconnect when some torque limit is exceeded. Selection, installation and maintenance of couplings can lead to reduced maintenance time and maintenance cost.
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An electro-mechanical device in the tradition of complex post- World War II clocks such as master clocks, the Globus IMP instrument incorporates hundreds of mechanical components common to horology. This instrument is a mechanical computer for navigation akin to the Norden bombsight. It mechanically computes complex functions and displays its output through mechanical displacements of the globe and other indicator components. It also modulates electric signals from other instruments.
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After the preparation of granules (in wet granulation) or sized slugs (in dry granulation) or mixing of ingredients (in direct compression), they are compressed to get the final product. The compression is done either by a single-punch machine (stamping press) or by a multi-station machine (rotary press). The tablet press is a high-speed mechanical device. It squeezes the ingredients into the required tablet shape with extreme precision.
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Bird, Lectures on Electricity, pp. 98–99 Bird designed his own interrupter circuit for delivering shocks to patients from a voltaic cell through an induction coil. Previously, the interrupter had been a mechanical device requiring the physician to turn a cog wheel or employ an assistant to do so. Bird wished to free his hands to apply the electricity more exactly to the required part of the patient.
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The jack also bears a damper, whose purpose is to stop the vibration of the string when the key is released. For full description and diagrams, see Harpsichord. In a piano, the action is a mechanical device, made mostly of hardwoods, that serves several purposes. By means of various levers, it translates a small motion of the key into a large motion of the hammers that strike the strings.
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Nearline storage is typically less accessible and less expensive than online storage, but still useful for backup data storage. A mechanical device is usually used to move media units from storage into a drive where the data can be read or written. Generally it has safety properties similar to on-line storage. An example is a tape library with restore times ranging from seconds to a few minutes.
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An operating temperature is the temperature at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the maximum operating temperature (or peak operating temperature). Outside this range of safe operating temperatures the device may fail. It is one component of reliability engineering.
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Combined on the BV 144 with a tricycle (nosewheel) landing gear, which was also still unusual in those days, it ensured the comfort of the passengers by maintaining a level fuselage during takeoff and also allowing the fuselage to sit low to the ground for ease of boarding. An electro-mechanical device rotated the wing by its main spar, up to 9°.Amtmann (1988), pp. 52–55, 64–66.
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Rachel constructs a very stylish and fashionable robot herself, and the girls return to the Red Garden. They are again attacked by a more powerful mechanical device controlled by Edgar Mayer but manage to defeat it. Louise appears and is revealed to be a powerful android, who envies the 'Dead Girls' because they live forever. Before she can attack the girls, the island's vegetation comes alive and envelops her and Edgar.
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After Rejewski's characteristics method became useless, he invented an electro-mechanical device that was dubbed the bomba kryptologiczna or cryptologic bomb. Each machine contained six sets of Enigma rotors for the six positions of the repeated three-letter key. Like the Zygalski sheet method, the bomba relied on the occurrence of females, but required only three instead of about ten for the sheet method. Six bombyBomby is the plural of bomba.
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Around 1851, Guerry invented the Ordonnateur Statistique, probably the first mechanical device designed to aid in statistical calculations and the assessment of relationships among moral variables.Larousse, P. (1872) Grand dictionnaire universel du XIX siecle, Paris. Vol. 8, Entry for A-M Guerry This device is now known to have been used for sorting one target variable (e.g., crimes of different types) in relation to other possibly explanatory variables (e.g.
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Release aid A release aid is a mechanical device designed to give a crisp and precise loose of arrows from a compound bow. In the most commonly used, the string is released by a finger-operated trigger mechanism, held in the archer's hand or attached to their wrist. In another type, known as a back-tension release, the string is automatically released when drawn to a pre-determined tension.
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Spits are now usually driven by electric motors. Rotisserie can also refer to a mechanical device used for rotisserie cooking, or to a restaurant specializing in spit-roasted meat. The word comes from French where it first appeared in Paris shops around 1450. Additionally, in restaurants employing the Escoffierian brigade de cuisine, the rotisseur is the chef responsible for all spit-roasted, oven roasted, grilled and in some cases fried foods.
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Using the second method, water vapor is compressed by means of a mechanical device, electrically driven in most cases. This form is designated mechanical vapor compression (MVC). The MVC process comprises two different versions: vapor compression (VC) and vacuum vapor compression (VVC). VC designates those systems in which the evaporation effect takes place at manometric pressure, and VVC the systems in which evaporation takes place at sub-atmospheric pressures (under vacuum).
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One was installed as standard equipment in the 1958 Saab GT750. The 1952 Fiat 1900 came standard with a complex mechanical device, called mediometro in Italian, that showed the average speed. In 1978, the Cadillac division of General Motors introduced the "Cadillac Trip Computer", available on the Cadillac Seville; Chrysler also launched an electric trip computer on its low-end Omni/Horizon. They can range from basic to complex.
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Malcolm C. Smith, a control engineering professor at the University of Cambridge, first introduced inerters in a 2002 paper. Smith extended the analogy between electrical and mechanical networks (the mobility analogy). He observed that the analogy was incomplete, since it was missing a mechanical device playing the same role as an electrical capacitor. It was found that it is possible to construct such a device using gears and flywheels.
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It was simply a mechanical device, operated by a hidden technician, located near the camera.Engineers' Device Eased Speechmakers' Minds, Wall Street Journal, April 26, 2011, p.A6 The script, in inch-high letters, was printed by a special electric typewriter on a paper scroll, which was advanced as the performer read, and the machines rented for the then- considerable sum of $30 per hour."TV's Cost-Cutting Gadets," Sponsor, 22 September 1952, 36.
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A Computationally enhanced craft item (CETI) is a simple mechanical device that is fitted with a small computer or computer interface and a servo system. A larger computer programs or directly controls the CETI according to the wishes of the user-programmer. CETIs are educational devices, but they can possibly provide guidance towards a future of user-programmable robots and ubiquitous computing. Tom Wrensch was one of the earliest proponents of CETI.
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Romance and science in the Middle Ages are the secondary themes of the novel. They are explored through Sibyll, a beautiful young maiden, and her old father, Adam Warner. Sibyll, who is in love with Lord Hastings, is inseparable from her father throughout the story. Adam is a hypomanic natural philosopher working for many years to complete his invention, a mechanical device that is supposed to carry out the functions of a modern steam engine.
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A multi-bladed windmill is a mechanical device with a piston pump. Because a piston pump has a fixed stroke, the energy demand of this type of pump is proportional to pump speed only. On the other hand, the energy supply of a wind rotor is proportional to the cube of wind speed. Because of that, a wind rotor runs at over speed (more speed than needed), yielding a loss of aerodynamic efficiency.
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A Gray code absolute rotary encoder with 13 tracks. At the top, the housing, interrupter disk, and light source can be seen; at the bottom the sensing element and support components. A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals. There are two main types of rotary encoder: absolute and incremental.
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Coinciding with the history of computer music is the history of vocal synthesis. Prior to Max Matthews synthesizing speech with a computer, analog devices were used to recreate speech. In the 1930s, an engineer named Holmer Dudley invented the VODER (Voice Operated Demonstrator), an electro-mechanical device which generated a sawtooth wave and white-noise. Various parts of the frequency spectrum of the waveforms could be filtered to generate the sounds of speech.
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The vibrating device invented by Sieveking and patented in Austria in 1898 Sieveking was an imaginative thinker and mechanically adept. Besides teaching, he also devoted his time inventing apparatuses and mechanical appliances of various kinds with some submitted for patent. He also invented and devised his own improvements for the piano. Sieveking invented a mechanical device for the piano to produce a peculiar vibration in the sound or notes of the instrument.
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A small stationary high pressure breathing air compressor for filling scuba cylinders A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas.
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A mechanical snubber is a mechanical device designed to protect components from excess shock or sway caused by seismic disturbances or other transient forces.Specialty Item Gauges OPUS (Online Piping & Usage Specification), (retrieved 28 September 2010) During normal operating conditions, the snubber allows for movement in tension and compression.Mechanical Snubber Assemblies Piping Technology & Products, Inc. Catalog, (retrieved 28 September 2010) When an impulse event occurs, the snubber becomes activated and acts as a restraint device.
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A top drive is a mechanical device on a drilling rig that provides clockwise torque to the drill string to drill a borehole. It is an alternative to the rotary table and kelly drive. It is located at the swivel's place below the traveling block and moves vertically up and down the derrick. The top drive allows the drilling rig to drill the longer section of a stand of drill pipe in one operation.
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Ground was broken on the smelter in the spring of 1890. The concentratorA concentrator is a mechanical device which separates ore from dirt, debris, and tailings. opened in March 1891; Brückner cylindersA Brückner cylinder is a rotating, brick-lined, horizontal metal cylinder which heats ore, burning off undesirable chemicals such as sulphur. and reverberatory furnaces in April 1892; converters in August 1892; refining furnacesA refining furnace melts the metal into a liquid.
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In 1753, a stream further away south of the bay Bredsundsviken was used. The power was transported to the mine Lappgruvan with a mechanical device known as the Flatrod system (stånggång). Mining was halted for a while and started again in 1822, now with a steam engine to power the pumps. The company Herrängs Gruf AB was founded in 1889 by Per Nathanael Fröding, who advertised in several newspapers to get financial backing.
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There are some exceptions, such as the pre-recorded Tanglewood Festival Chorus sings on "My Traveling Star" and "Shower the People". Also, a "drum machine" (in this case, a large mechanical device that physically plays drums) made by Taylor and his friend Gordon Fairfield appears on "Slap Leather" and "Chili Dog". The digital discrete 5.1 surround sound mix of One Man Band won a TEC Award for best surround sound recording in 2008.Mix Foundation.
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Hog oiler patent image A hog oiler was a mechanical device employed on farms to be used by hogs to provide relief from insects and offer skin protection. It consisted of a reservoir to hold oil, and a means to distribute the oil onto the hog, often via grooved wheels or cylinders. Hogs seeking relief would rub up against a wheel (or cylinder) causing it to rotate and dispense oil onto their bodies.
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Nina is in fact a golddigger after Kenneth's money, while Henri is her secret lover. Virginia first concocts a scheme to have Kenneth sign five checks for household expenses at once using a mechanical device, one of B.J.'s many failures. Kenneth signs without noticing that one check is for $100,000, but when Virginia and B.J. go to the bank, Mr. Judd informs them that Kenneth has to authorize any check over $1000. Defeated, they return home.
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In China, the invention of the stern-mounted rudder appeared as early as the 1st century AD, allowing for better steering than using the power of oarsmen. The Cao Wei Kingdom engineer and inventor Ma Jun (c. 200–265 AD) built the first south-pointing chariot, a complex mechanical device that incorporated a differential gear in order to navigate on land, and (as one 6th century text alludes) by sea as well.Needham, Volume 4, Part 2, 40.
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When mechanical clocks came into use, they were often wound at least twice a day to ensure accuracy.Usher, p. 194 Monasteries broadcast important times and durations with bells, rung either by hand or by a mechanical device, such as by a falling weight or by rotating beater. Although the mortuary inscription of Pacificus, archdeacon of Verona, records that he constructed a night clock (horologium nocturnum) as early as 850,"A history of mechanical inventions", Abbott Payson Usher(1929), p.
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The StB (State Security) decided to exploit the event for propaganda purposes to discredit the Roman Catholic Church. In January 1950, they arrested Toufar and forced him—under brutal torture—to testify that he faked the miracle by installing a mechanical device leading from the pulpit to the cross. According to their version, he operated the device in order to deceive parishioners. During the interrogation, they took him back to Číhošť to film a falsified reconstruction of the event.
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Wire brushes on the back of a drum from the rebuilt Bombe. The bombe was an electro-mechanical device that replicated the action of several Enigma machines wired together. A standard German Enigma employed, at any one time, a set of three rotors, each of which could be set in any of 26 positions. The standard British bombe contained 36 Enigma equivalents, each with three drums wired to produce the same scrambling effect as the Enigma rotors.
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A coil spring is a mechanical device which is typically used to store energy and subsequently release it, to absorb shock, or to maintain a force between contacting surfaces. They are made of an elastic material formed into the shape of a helix which returns to its natural length when unloaded. Under tension or compression, the material (wire) of a coil spring undergoes torsion. The spring characteristics therefore depend on the shear modulus, not Young's Modulus.
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Also, only his eyes can be seen, for he wears a veil and a helm. He's often at odds with Rosiel after the Inorganic Angel's return to Heaven. :It is revealed that he was actually (Drama voice by: Masako Aizawa) in disguise. The helm was to hide Lailah's cross-shaped scar, while the veil was used to conceal her brand as a fallen angel and a mechanical device that changes her voice to that of a man's.
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The Roadometer used two gears and was an early example of an odometer with pascaline-style gears in actual use. In 1895, Curtis Hussey Veeder invented the Cyclometer. The Cyclometer was a mechanical device that counted the number of rotations of a bicycle wheel. A flexible cable transmitted the number of rotations of the wheel to an analog odometer visible to the rider, which converted the wheel rotations into the number of miles traveled according to a predetermined formula.
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Wenzel Jamnitzer making a perspective drawing, as depicted by Jost Amman (c. 1565) The roughly 50 engravings for the book were made by Jost Amman, a German woodcut artist, based on drawings by Jamnitzer. As Jamnitzer describes in his prologue, he built models of polyhedra out of paper and wood and used a mechanical device to help trace their perspective. This process was depicted in another engraving by Amman from around 1565, showing Jamnitzer at work on his drawings.
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A shock indicator is a mechanical device that detects and records mechanical shocks experienced by it. It is a common practice to attach shock indicators to expensive goods that are to be shipped. This way, the magnitude and the time of shocks are recorded to ensure that delicate and expensive instruments are not mishandled or exposed to inappropriate environmental conditions during shipping. The shock indicator provides a visual indication whether the shock threshold has been reached or exceeded, e.g.
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In the role as a conditional operator, a shear pin will be used to prevent a mechanical device from operating before the criteria for operation are met. A shear pin gives a distinct threshold for the force required for operation. It is very cheap and easy to produce delivering a very high reliability and predictable tolerance. They are almost maintenance-free and can remain ready for operation for years with little to no decrease in reliability.
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Robotic surgery is a term used for correlated actions of a surgeon and a surgical robot (that has been programmed to carry out certain actions during the preoperative planning procedure). A surgical robot is a mechanical device (generally looking like a robotic arm) that is computer-controlled. Robotic surgery can be divided into three types, depending on the degree of surgeon interaction during the procedure: supervisory-controlled, telesurgical, and shared-control.Bale RJ, Melzer A et al.
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Ukraine competes in the second semi-final of the contest on 14 May 2009. Svetlana performs 17th in the running order of the semi-final, following Albania and preceding Estonia. Svetlana released news on her performance at Eurovision that she would perform on stage with a large mechanical device known as the "Hell Machine", appearing somewhat like a cog. The device would descend and rotate from the top of the stage, and to be accompanied by embedded lights.
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An intra-aortic balloon pump The intra-aortic balloon pump (IABP) is a mechanical device that increases myocardial oxygen perfusion and indirectly increases cardiac output through afterload reduction. It consists of a cylindrical polyurethane balloon that sits in the aorta, approximately from the left subclavian artery. The balloon inflates and deflates via counter pulsation, meaning it actively deflates in systole and inflates in diastole. Systolic deflation decreases afterload through a vacuum effect and indirectly increases forward flow from the heart.
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Illustration of a nineteenth century cigar cutter, published in 1859.Frederick William Fairholt, Tobacco: Its History and Associations (1859), p. 224. A cigar cutter is a mechanical device designed to cut one end off a cigar so that it may be properly smoked. Although some cigars are cut on both ends, or twirled at both ends, the vast majority come with one straight cut end and one end in a "cap" which must be cut off for the cigar to be smoked.
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Various desktop mechanical calculators used in the office from 1851 onwards. Each one has a different user interface. This picture shows clockwise from top left: An Arithmometer, a Comptometer, a Dalton adding machine, a Sundstrand and an Odhner Arithmometer A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically. Most mechanical calculators were comparable in size to small desktop computers and have been rendered obsolete by the advent of the electronic calculator.
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A gybe preventer, preventer, or jibe-guard, is a mechanical device on a sailing vessel which limits the boom's ability to swing unexpectedly across the boat due to an unplanned accidental jibe. During an unplanned accidental jibe (or gybe), neither the crew nor the boat is set up properly to execute a planned jibe. As a result, the uncontrolled boom will swing across the boat potentially inflicting injury or knocking crew members overboard. The mainsheet or traveller can also inflict serious injury.
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However, Setsuna refuses and says that instead, if he still wants to atone, Uriel's punishment will be to go on living with the knowledge of what he did. Later, having sorted out his thoughts, he attaches a mechanical device to his neck, amplifying the vibrations of his throat to form an audible voice. ; :Drama voice by: Naozumi Takahashi :The Archangel of Fire, who also holds the title of being the Chief of the Powers. He is the Shining General of Heaven's Armies.
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The physician Golding Bird designed his own interrupter circuit for delivering shocks to patients from a voltaic cell through an induction coil. Previously, the interrupter had been a mechanical device requiring the physician to manually turn a cog wheel, or else employ an assistant to do this. Bird wished to free his hands to better apply the electricity to the required part of the patient. His interrupter worked automatically by magnetic induction and achieved a switching rate of around (five times per second).
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The Lower Riser Package is a mechanical device to protect an oil well located underwater (subsea) and used during an oil well intervention. The LRP is essentially a mini blow out preventer (BOP). The lower riser package consists of a connector to the subsea oil well, a series of safety valves and a connection point at the top for connection to the riser pipe. The riser pipe is essentially a mini Marine riser and has a maximum inside diameter of 7 inches.
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A pump is a mechanical device generally used for raising liquid from a lower level to higher one. This is achieved by creating a low pressure at the inlet and high pressure at the outlet of the pump. Due to low inlet pressure, the liquid rises from where it is to be stored or supplied. However, work has to be done by a prime mover to enable it to impart mechanical energy to the liquid which ultimately converts into pressure energy.
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Herz was also an inventor of a mechanical device he named a dactylion, designed to loosen and strengthen a pianist's fingers. The device consisted of two parallel wooden bars, where the bottom one could be attached under a keyboard to fix the dactylion in place; and the top bar had ten rings hanging on strings for individual fingers to provide certain resistance while playing the piano. The dactylion had a considerable success then. He patented the dactylion in France in 1835.
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Patent illustration of a carpet sweeper A carpet sweeper is a mechanical device for the cleaning of carpets. They were popular before the introduction of the vacuum cleaner and have been largely superseded by them. However, they continue to be used in many home and commercial applications because they are lightweight and quiet, enabling users to quickly clean small messes up from the floor without disturbing patrons, patients, babies and pets, and because they do not require electricity to operate.
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1929 machine cancellation used to cancel 1d stamp on first flight cover from Nassau to Miami A machine postmark or machine cancellation is a postmark or cancellation on mail that is applied by a mechanical device rather than with the use of a handstamp. Nearly all machine-cancellation devices apply both postmark and cancellation simultaneously. While some mail is cancelled using handstamps, machine cancellation is ubiquitous, and in the industrialized nations the vast majority of mail is cancelled by machine.
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Morton Heilig wrote in the 1950s of an "Experience Theatre" that could encompass all the senses in an effective manner, thus drawing the viewer into the onscreen activity. He built a prototype of his vision dubbed the Sensorama in 1962, along with five short films to be displayed in it while engaging multiple senses (sight, sound, smell, and touch). Predating digital computing, the Sensorama was a mechanical device. Heilig also developed what he referred to as the "Telesphere Mask" (patented in 1960).
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Pratt's first job in the early 1850s was as part-owner in the National Democrat newspaper in Centre, Alabama, where he worked as a printer's devil and reporter. In the late 1850s he served as the editor for the Gadsden Times newspaper. He also worked as a historian of Cherokee County, Alabama, during this time and became a victim of writer's cramp. This inspired him to see if he could make a mechanical device to replace the labor of handwriting.
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A Hinman collator owned by the Folger Shakespeare Library The Hinman collator, an early optical collator, was an opto-mechanical device for comparing pairs of documents for differences in the text. Documents that appeared similar were said to “collate”. The collator resulted in rapid advances in the study of literary works. Invented by Charlton Hinman in the late 1940s, the device used lights and mirrors to superimpose images of the two documents so that differences in text alignment or wording stood out.
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One artist inspired by the Penrose article was M.C. Escher - who produced two prints of impossible buildings in 1961 and 1962. The application of the concepts he originated over 20 years prior, by serious mathematicians and artists, rekindled Reutersvärd's interest. By 1963, he had created several new and original impossible figures, and was featured by a gallery in Stockholm. He would create his figures with India ink on Japanese rice paper, drawing freehand, without a ruler or any mechanical device.
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Many PID loops control a mechanical device (for example, a valve). Mechanical maintenance can be a major cost and wear leads to control degradation in the form of either stiction or backlash in the mechanical response to an input signal. The rate of mechanical wear is mainly a function of how often a device is activated to make a change. Where wear is a significant concern, the PID loop may have an output deadband to reduce the frequency of activation of the output (valve).
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Fleeing and breaking into a mysterious nearby building, Héctor contacts a scientist by walkie-talkie, who warns him of the bandaged man and guides him to his location, promising safety. The scientist convinces Héctor to hide from the bandaged man, who is just outside, in a large mechanical device. However, when he leaves the machine, Héctor discovers that he has traveled approximately an hour back in time. The scientist explains that the machine is an experimental time travel device, and refers to Héctor as "Héctor 2".
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A Schwartzkopff-Eckhardt II bogie (Schwartzkopff-Eckhardt-II-Lenkgestell or Schwartzkopff-Eckhardt-Gestell) is a mechanical device to improve the curve running of steam locomotives. The Schwartzkopff-Eckhardt II bogie is a further refinement of the Krauss-Helmholtz bogie, whereby two coupled axles and the carrying axle are combined within the bogie. The carrying axle steers the second coupled axle via a long shaft and this also moves the first coupled axle via a Beugniot lever. This bogie is used on the DRG Class 84.
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Notable Roman inventions include the book (Codex), glass blowing and concrete. Because Rome was located on a volcanic peninsula, with sand which contained suitable crystalline grains, the concrete which the Romans formulated was especially durable. Some of their buildings have lasted 2000 years, to the present day. In Roman Egypt, the inventor Hero of Alexandria was the first to experiment with a wind-powered mechanical device (see Heron's windwheel) and even created the earliest steam-powered device (the aeolipile), opening up new possibilities in harnessing natural forces.
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However, after a previous failed attempt to capture Chencang, Zhuge Liang switched to another attack route in the west. In early 231, Zhuge Liang assembled troops to conquer Longyou, setting Mount Qi as his immediate target. Before Zhuge Liang marched towards Mount Qi, he sent emissaries to meet the Xianbei and Qiang peoples and incite them to create disturbances in Wei territory. At the same time, he also invented the "wooden oxen and flowing horses", a mechanical device which greatly improved the transportation of supplies.
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976 AD mentions the bāb al-midfa and the bāb al-mustaq which he said were parts of naphtha- throwers and projectors (al-naffātāt wa al-zarāqāt). Book of Ingenious Mechanical Device (Kitāb fī ma 'rifat al-ḥiyal al-handasiyya) of 1206 AD by Ibn al-Razzaz al-Jazari mentioned about ejectors of naphtha (zarāqāt al-naft). Although flamethrowers were never used in the American Civil War, the use of Greek fire was threatened, and flamethrowers have been in use in most modern conflicts ever since.
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Research to develop a Straticharge Continuous Fuel-Injection (SCFI) system (an early gasoline direct injection (GDI) design) was conducted with the backing of AMC. The Hornet's conventional spark ignited internal combustion straight-6-cylinder engine was a modified with a redesigned cylinder head, and road testing performed using a 1973 AMC Hornet. This SCFI system was a mechanical device that automatically responded to the engine's airflow and loading conditions with two separate fuel-control pressures supplied to two sets of continuous-flow injectors.Weiss, p. 2.
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Separation of a compressed gas into a hot stream and a cold stream The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. The gas emerging from the "hot" end can reach temperatures of 200 °C (392 °F), and the gas emerging from the "cold end" can reach . It has no moving parts. Pressurised gas is injected tangentially into a swirl chamber and accelerated to a high rate of rotation.
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The invention of the Playograph is attributed to the Connecticut-based Baseball Playograph Company, which manufactured this mechanical device as a product. Several innovations were introduced later on such as its shift from mechanical to electronic and the use of colored lights to indicate players, their position on the field, and whether the batter was safe or out. Playograph during the 250px Newspapers usually used Playograph especially when covering the World Series. One of the earliest of these was the World Series of 1911.
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The upper wing was mounted high parasol, the middle wing was mounted high on the fuselage, and the lower wing was mounted low on the fuselage; all the wings were equipped with ailerons and connected to each other by three uprights on the side integrated with steel cables. The landing gear was fixed, mounted on a tubular structure underneath the fuselage, equipped with large diameter wheels and a mechanical device that had been lapped and integrated laterally by a support shoe positioned under the tail.
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QWIPs are typically made of gallium arsenide, a material commonly found in smartphones and high-speed communications equipment. Depending on the material and the design of the quantum wells, the energy levels of the QWIP can be tailored to absorb radiation in the infrared region from 3 to 20 µm. QWIPs are one of the simplest quantum mechanical device structures that can detect mid- wavelength and long-wavelength infrared radiation. They are known for their stability, high pixel-to-pixel uniformity, and high-pixel operability.
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While waiting for ENIAC to be physically relocated, Enrico Fermi invented a mechanical device called FERMIAC to trace neutron movements through fissionable materials by the Monte Carlo method. Monte Carlo methods for particle transport have been driving computational developments since the beginning of modern computers; this continues today. In the 1950s and 1960s, these new methods were organized into a series of special-purpose Monte Carlo codes, including MCS, MCN, MCP, and MCG. These codes were able to transport neutrons and photons for specialized LANL applications.
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A street-lighting system controlled by a timing device is an example of an open-loop system. At a certain time each evening, a mechanical device closes the circuit and energy flows through the electric lines to light the lamps. Note, however, that the timing mechanism is an independent unit and is not measuring the objective function of the lighting system. If the lights should be needed on a dark, stormy day the timing device would not recognize this need and therefore would not activate energy inputs.
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An interlock device is designed to allow a generator to provide backup power in such a way that it (a) prevents main and generator power to be connected at the same time, and (b) allows circuit breakers to operate normally without interference in the event of any overload condition. Most interlock devices for electrical systems employ a mechanical device to manage movement of circuit breakers. Some also allow for the use of padlocks to prevent someone from accidentally activating the main power system without authorization.
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This may be done, for instance, with a Spatial Coordinate Apparatus, which is an articulated mechanical device capable or recording the position in three-dimensional space of three separate points forming a small triangle. The orientation of the triangle is computed from these coordinates. Yet another approach is to use a laser scanner: this instrument can record the angular and distance coordinates of the intersection of a laser beam with objects within its range. The LAD of canopy leaves can be derived from such measurements.
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A manometer is a good example, as it uses the surface area and weight of a column of liquid to both measure and indicate pressure. Likewise the widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge. A vacuum gauge is a pressure gauge used to measure pressures lower than the ambient atmospheric pressure, which is set as the zero point, in negative values (e.g.: −15 psig or −760 mmHg equals total vacuum).
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A palm pedal a mechanical device that consists of levers attached to the strings of a guitar or other stringed instrument for the purpose of pulling the strings up in pitch to a preset half-step or whole-step. The palm pedal was invented by Boomer Castleman, an American guitarist and singer-songwriter, who designed the prototype in 1968. Bigsby was the manufacturer of this product in the early 1970s. Pro Palm Pedals, a company in Nashville, has been producing palm pedals since 2009.
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Scheme of an adiabatic quantum motor made of a quantum dot coupled to a rotating wheel. An adiabatic quantum motor is a mechanical device, typically nanometric, driven by a flux of quantum particles and able to perform cyclic motions. The adjective “adiabatic” in this context refers to the limit when the dynamics of the mechanical degrees of freedom is slow compared with the dwell time of the particles passing through the device. In this regime, it is commonly assumed that the mechanical degrees of freedom behave classically.
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Alternator radio transmitters were used into the 1920s, when they were replaced by vacuum tube transmitters. As one of the first continuous wave transmitters, the Goldschmidt alternator was able to transmit audio (sound) as well as telegraphy signals, and was used for some early experimental AM radio transmissions. Goldschmidt tone wheel at the Tuckerton transatlantic receiving station in New Jersey in 1917. He also invented a mechanical device, the Goldschmidt tone wheel, used in early radio receivers to receive the new continuous wave radiotelegraph signals.
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A sphygmograph, probably of Etienne-Jules Marey's design The sphygmograph ( ) was a mechanical device used to measure blood pressure in the mid-19th century. It was developed in 1854 by German physiologist Karl von Vierordt (1818–1884). It is considered the first external, non-intrusive device used to estimate blood pressure. The device was a system of levers hooked to a scale- pan in which weights were placed to determine the amount of external pressure needed to stop blood flow in the radial artery.
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Map showing the Battle of Mount Qi and Battle of Wuzhang Plains In 230, Shu forces led by Wei Yan defeated Wei forces under Fei Yao and Guo Huai at Yangxi (陽谿; southwest of present-day Wushan County, Gansu). In 231, Zhuge Liang launched the fourth Northern Expedition and attacked Mount Qi again. He used the wooden ox, a mechanical device he invented, to transport food supplies to the frontline.([建興]九年，亮復出祁山，以木牛運， ...) Sanguozhi vol. 35.
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A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system, to drive the belt, and to tension the belt. Modern pulleys are made of rolled shells with flexible end disks and locking assemblies. Early pulley engineering was developed by Josef Sitzwohl Josef Sitzwohl, "Welded Conveyor Pulleys", Victoria, Australia, 1948 in Australia in 1948 and later by Helmuth Lange Helmut Lange, 1963 Leibniz University Hannover Ph.D. Thesis and Walter SchmoltziSchmoltzi, W, "Designing Drums with transverse Shafts for Belt Conveyors". Thesis for Doctorate in Engineering, Hannover, 1974.
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Pulmonary ventilation (and hence external respiration) is achieved through manual insufflation of the lungs either by the rescuer blowing into the patient's lungs, or by using a mechanical device to do so. This method of insufflation has been proved more effective than methods which involve mechanical manipulation of the patient's chest or arms, such as the Silvester method. It is also known as expired air resuscitation (EAR), expired air ventilation (EAV), rescue breathing, or colloquially the kiss of life. It was introduced as a life saving measure in 1950.
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Coal burner working as a components of asphalt plant in Thailand A coal burner (or pulverized coal burner) is a mechanical device that burns pulverized coal (also known as powdered coal or coal dust since it is as fine as face powder in cosmetic makeup) into a flame in a controlled manner. Coal burner is mainly composed of pulverized coal machine, host of combustion machine (including combustion chamber, automatic back and forth motion system, automatic rotation system, the combustion air supply system) control system, ignition system, the crater and others.
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With very few works published on memory in the previous two millennia, Ebbinghaus's works spurred memory research in the United States in the 1890s, with 32 papers published in 1894 alone. This research was coupled with the growing development of mechanized mnemometers (an outdated mechanical device used for presenting a series of stimuli to be memorized). The reaction to his work in his day was mostly positive. Noted psychologist William James called the studies "heroic" and said that they were "the single most brilliant investigation in the history of psychology".
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Doležal (2012), p. 161 He was arrested by the Prague department on 28 January 1950, and deported to the Valdice prison.Doležal (2012), p. 164 The investigation of the "Číhošť Miracle" was closely watched by the highest communist authorities, Central Committee of the Communist Party and President Klement Gottwald. A member of the investigation team, Miloš Hrabina, remembered in 1962 that it was necessary to obtain incriminating materials, mainly the suspect's confession. A team of technicians was assigned to construct a mechanical device leading from the pulpit to the altar.
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Oxygen is given with a small amount of continuous positive airway pressure (CPAP), and intravenous fluids are administered to stabilize the blood sugar, blood salts and blood pressure. If the baby's condition worsens, an endotracheal tube (breathing tube) is inserted into the trachea and intermittent breaths are given by a mechanical device. An exogenous preparation of pulmonary surfactant, either synthetic or extracted from animal lungs, is given through the breathing tube into the lungs. Surfactant medications can decrease the risk of death for very low-birth- weight infants who are hospitalized by 30%.
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The teaching machine, a mechanical invention to automate the task of programmed learning The teaching machine was a mechanical device whose purpose was to administer a curriculum of programmed learning. The machine embodies key elements of Skinner's theory of learning and had important implications for education in general and classroom instruction in particular. In one incarnation, the machine was a box that housed a list of questions that could be viewed one at a time through a small window. (see picture.) There was also a mechanism through which the learner could respond to each question.
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The Advisor's grub-like appearance was inspired by the works of science fiction author Frank Herbert. Advisors are large larvae-like creatures which are virtually featureless, with no visible eyes, ears or limbs, though they do possess an eye-like mechanical device attached to the left side of their heads, and detachable mechanical arms. Their faces are covered by a form of respirator, which is able to lift to reveal a mouth-like orifice from which extends a long flexible proboscis. With this, they can examine objects, or attack and kill enemies.
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A Polyphon playing "Silent Night" A 1905 Polyphon Polyphon is a disc-playing music box, a mechanical device first manufactured by the Polyphon Musikwerke, located in Leipzig, Germany. Invented in 1870, full-scale production started around 1897 and continued into the early 1900s. Polyphons were exported all over world and music was supplied for the English, French and German markets, as well as further afield, with music cataloged for the Russian, Polish and Balkan regions. Polyphon is also a record label as registered by German Polyphon Musikwerke AG in 1908.
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246 Focusing on the later phase of the incident at Lakenheath, he came to the remarkable conclusion that "this is the most puzzling and unusual case in the radar-visual files. The apparently rational, intelligent behavior of the UFO suggests a mechanical device of unknown origin as the most probable explanation of this sighting".Thayer, Condon Report, Optical and Radar Analysis, p.246 Aviation journalist and noted UFO skeptic Philip J. Klass concluded, however, that the incident could be explained as a combination of false radar returns and misperceptions of meteors from the Perseid stream.
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These observations were communicated to personnel in battery plotting rooms, who used a mechanical device called a plotting board to indicate the target's observed location on a map of the area. The red "1" on the diagram at right indicates this first stage of the fire control process. A series of observed positions (blue circles) establishes the likely track of the target. Using a plotting board, the set forward point is determined, based upon the target's observed course and speed and an assumption about when the gun is to be fired.
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The M16K is a so- called "K" weapon ("K" standing for the German word Kurz meaning short). The La France M16K was basically a standard military M16 rifle chambered for the 5.56 mm cartridge, but modified with an 8 3/8 inch (213 mm) barrel. Like many automatic and semi-automatic weapons the M16 utilizes pressure from the propellant gases in the barrel to cycle the bolt of the firearm. Most automatic weapons use a mechanical device such as a rod and piston between the bolt and the propellant gases.
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The south-pointing chariot was also combined with the earlier Han Dynasty era invention of the odometer (also Greco-Roman), a mechanical device used to measure distance traveled, and found in all modern automobiles. It was mentioned in the Song Dynasty (960-1279 CE) historical text of the Song Shi (compiled in 1345) that the engineers Yan Su (in 1027 CE) and Wu Deren (in 1107 CE) both created south-pointing chariots, which it details as follows.Needham, Volume 4, Part 2, 291. (In Needham's translation, inches and feet (ft) are used as units of distance.
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Any of the mentioned reasons can lead to incompetent closure of the urethra and hence incontinence. Initial therapy includes bladder training, lifestyle changes, kegel exercises, and the use of incontinence pads. More invasive surgical treatment can include the insertion of a urethral sling or an artificial urinary sphincter, which is a mechanical device that mimics the function of the urethral sphincter, and is activated manually by the patient through a switch implanted in the scrotum. The latter is considered the gold standard in patients with moderate or severe stress urinary incontinence.
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CNC stands for Computer Numerical Control. CNC mills or routers include proprietary software which interprets 2D vector drawings or 3D models and converts this information to a G-code, which represents specific CNC functions in alphanumeric format which the CNC mill can interpret. The G-codes drive a machine tool, a powered mechanical device typically used to fabricate components. CNC machines are classified according to the number of axes that they possess, with 3, 4 and 5 axis machines all being common, and industrial robots being described with having as many as 9 axes.
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224–233 (233) The mechanical flywheel, used to smooth out the delivery of power from a driving device to a driven machine and, essentially, to allow lifting water from far greater depths (up to ), was first employed by Ibn Bassal (fl. 1038–1075), of Al-Andalus.Ahmad Y Hassan, Flywheel Effect for a Saqiya. The use of the flywheel as a general mechanical device to equalize the speed of rotation is, according to the American medievalist Lynn White, recorded in the De diversibus artibus (On various arts) of the German artisan Theophilus Presbyter (ca.
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Bill awakens in a hospital, where she finds that she has been fitted with a mechanical device that serves as her replacement heart. Razor, one of the hospital's employees, shows her around and explains that some of the patients are waiting to be "upgraded" for "Operation Exodus", to escape the polluted air of the ship's lower levels due to contamination from the fuel. Years later, they see footage from the bridge of the Doctor coming down the lift. However, Razor then tricks Bill into becoming the next "upgrade" subject.
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Homogenization (from "homogeneous;" Greek, homogenes: homos, same + genos, kind)homo-, word origin is the process of converting two immiscible liquids (i.e. liquids that are not soluble, in all proportions, one in another) into an emulsion (Mixture of two or more liquids that are generally immiscible). Sometimes two types of homogenization are distinguished: primary homogenization, when the emulsion is created directly from separate liquids; and secondary homogenization, when the emulsion is created by the reduction in size of droplets in an existing emulsion. Homogenization is achieved by a mechanical device called a homogenizer.
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It was traditionally a purely mechanical device but, in most modern vehicles, it is now electronic. Luxury vehicles often have multiple trip meters. Most trip meters will show a maximum value of 999.9. The trip meter may be used to record the distance traveled on each tank of fuel, making it very easy to accurately track the energy efficiency of the vehicle; another common use is resetting it to zero at each instruction in a sequence of driving directions, to be sure when one has arrived at the next turn.
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Mechanical integrators were key elements in the mechanical differential analyser, used to solve practical physical problems. Mechanical integration mechanisms were also used in control systems such as regulating flows or temperature in industrial processes. Mechanisms such as the ball-and-disk integrator were used both for computation in differential analysers and as components of instruments such as naval gun directors, flow totalizers and others. A planimeter is a mechanical device used for calculating the definite integral of a curve given in graphical form, or more generally finding the area of a closed curve.
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Shapiro attempted to build a computer from biological molecules, guided by a vision of "A Doctor in a Cell": A biomolecular computer that operates inside the living body, programmed with medical knowledge to diagnose diseases and produce the requisite drugs. Lacking experience in molecular biology, Shapiro realized his first design for a molecular computer as a LEGO-like mechanical device built using 3D stereolithography, which was patented upon his return to Weizmann in 1998. During the last decade and a half, Shapiro’s lab have designed and successfully implemented various molecular computing devices. In 2004, Prof.
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A Honda F1 racecar engine. A machine (or mechanical device) is a mechanical structure that uses power to apply forces and control movement to perform an intended action. Machines can be driven by animals and people, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems.
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A cotton gin on display at the Eli Whitney Museum. The cotton gin is a mechanical device that removes the seeds from cotton, a process that had previously been extremely labor-intensive. The word gin is short for engine. While staying at Mulberry Grove, Whitney constructed several ingenious household devices which led Mrs Greene to introduce him to some businessmen who were discussing the desirability of a machine to separate the short staple upland cotton from its seeds, work that was then done by hand at the rate of a pound of lint a day.
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A postage meter is a mechanical device used to create and apply physical evidence of postage (or franking) to mailed matter. Postage meters are regulated by a country's postal authority; for example, in the United States, the United States Postal Service specifies the rules for the creation, support, and use of postage meters. A postage meter imprints an amount of postage, functioning as a postage stamp, a cancellation and a dated postmark all in one. The meter stamp serves as proof of payment and eliminates the need for adhesive stamps.
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The pedophilic connotations appear to escape the artist or the art world for that matter. Another work Roof-Ceiling (POF No 10), 1995, consists of a mechanical device which vacuums up the rubbish in a room and deposits it in a transparent ceiling overhead; installed in a hairdressing salon, it allows the viewer's newly sheared locks to become part of the architecture. ‘(Eyestorm 2007). This work is not only a demonstration of creative cognition it is also a valuable excursion of fine art outside the museum and into everyday life.
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The entrance of the tunnel is goblet-shaped, featuring an interior and exterior surface that is circular, making minimal contact with the ground. Over the course of the exhibition, the work was progressively covered by some 160 cubic metres of earth by a large mechanical device, forming a sharp mountain of dirt which the tunnel appears to be running through. In 2016, his art exposition in MUAC (Mexico City) was a success, with literary contributions from Catherine Lampert, Cecilia Delgado, and Mexican writer Pablo Soler Frost. Kapoor sued the National Rifle Association (NRA) in 2018.
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After witnessing firsthand the dangers of deploying and retrieving BTs, James M. Snodgrass began developing the expendable bathythermograph (XBT). Snodgrass' description of the XBT: > Briefly, the unit would break down in two components, as follows: the ship > to surface unit, and surface to expendable unit. I have in mind a package > which could be jettisoned, either by the “Armstrong” method, or some simple > mechanical device, which would at all times be connected to the surface > vessel. The wire would be paid out from the surface ship and not from the > surface float unit.
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Apheresis platelets are collected using a mechanical device that draws blood from the donor and centrifuges the collected blood to separate out the platelets and other components to be collected. The remaining blood is returned to the donor. The advantage to this method is that a single donation provides at least one therapeutic dose, as opposed to the multiple donations for whole- blood platelets. This means that a recipient is not exposed to as many different donors and has less risk of transfusion-transmitted disease and other complications.
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A beadlock or bead lock is a mechanical device that secures the bead of a tire to the wheel of a vehicle. Tires and wheels are designed so that, when the tire is inflated, the tire pressure pushes the bead of the tire against the inside of the wheel rim so that the tire stays on the wheel and the two rotate together. In situations where tire pressure is insufficient to hold the bead of the tire in place, a beadlock is needed. There are several styles of beadlocks.
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They worked on the problem of "electrical telescopy," something Zworykin had never heard of before. At this time, electrical telescopy (or television as it was later called) was just a dream. Zworykin did not know that others had been studying the idea since the 1880s, or that Professor Rosing had been working on it in secret since 1902 and had made excellent progress. Rosing had filed his first patent on a television system in 1907, featuring a very early cathode ray tube as a receiver, and a mechanical device as a transmitter.
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Klopotec in Pavla Vas, Lower Carniola (Slovenia) A klopotec (pronounced ) is a wooden mechanical device on a high wooden pole, similar to a windmill. It is used as a bird scarer in the vineyards of traditional wine-growing landscapes of Slovenia, Austria, and Croatia. It is one of the symbols of Slovenia and Styria. The windmill in the Slovene Hills typically has four blades, and in Haloze six blades, driving an axis with a sail or vane that is constructed to swivel so it is always positioned perpendicular to the wind.
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The ancestor to the modern minigun was a hand cranked mechanical device invented in the 1860s by Richard Jordan Gatling. Gatling later replaced the hand- cranked mechanism of a rifle-caliber Gatling gun with an electric motor, a relatively new invention at the time. Even after Gatling slowed the mechanism, the new electric-powered Gatling gun had a theoretical rate of fire of 3,000 rounds per minute, roughly three times the rate of a typical modern, single- barreled machine gun. Gatling's electric-powered design received U.S. Patent #502,185 on July 25, 1893.
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This would thus indicate that the wool objects had been integrated into their body schema and contributes support towards the idea of the body's using proprioceptive and visual elements to create an extended body schema. The mechanical device acted as an intermediate between the subject and the active object, and the subjects' failure to detect an afterimage in that context indicates that this concept of extension is limited to being sensitive to only what the body is directly in contact with.Carlson et al. 2010. Rapid Assimilation of External Objects Into the Body Schema.
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Here, the Q-switch is an externally controlled variable attenuator. This may be a mechanical device such as a shutter, chopper wheel, or spinning mirror/prism placed inside the cavity, or (more commonly) it may be some form of modulator such as an acousto-optic device, a magneto-optic effect device or an electro-optic device — a Pockels cell or Kerr cell. The reduction of losses (increase of Q) is triggered by an external event, typically an electrical signal. The pulse repetition rate can therefore be externally controlled.
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There were several competitors including a remote control dune buggy, a mechanical device under a steel mixing bowl, and a little yellow remote control corvette that could only go forward or backwards and turn. The first competition was won by the corvette. The last revision to the official rules was on 15 Feb 2003. By then the rules had evolved to include mention of radio controls, attacking control systems, limiting the number of operators to one, and codifying two part critters loss conditions MileHiCon 38 Website, Internet Archive (accessed 19 February 2015).
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Ocean Optics SeaChanger Unit The SeaChanger Color Engine is an electro- mechanical device that is used to control light color in entertainment- industry lighting applications. The unit employs four overlapped color filter wheels, inserted into a light beam near its source, to produce colored light. This is in contrast to color scrollers, which insert color filter ribbons into a light beam. The color engine, which was released by Ocean Thin Films in 2005, is designed to fit into the Source Four lighting instrument made by Electronic Theatre Controls.
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Refreshable braille display A refreshable braille display or braille terminal is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Visually impaired computer users who cannot use a computer monitor can use it to read text output. Deafblind computer users may also use refreshable braille displays. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.
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Dialyser used in hemodialysis Hemodialysis is a method for removing waste products such as creatinine and urea, as well as free water from the blood when the kidneys are in kidney failure. The mechanical device used to clean the patients blood is called a dialyser, also known as an artificial kidney. Modern dialysers typically consist of a cylindrical rigid casing enclosing hollow fibers cast or extruded from a polymer or copolymer, which is usually a proprietary formulation. The combined area of the hollow fibers is typically between 1-2 square meters.
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Each shapeshifter carries a data disc located at the base of its spinal column to contain encoded information regarding its mission. Shapeshifter agents communicate with the parallel universe using a Selectric 251 typewriter located in secret room in a typewriter repair shop that is quantum entangled with an equivalent typewriter in the parallel universe. In the fourth-season premiere episode, "Neither Here Nor There", a new type of shapeshifter was introduced. Similar to Walternate's versions, they are human-machine hybrids, including a bio-mechanical device similar to the data disc found in Walternate's versions.
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One day when he was experimenting on a new type of lamp a spring fell off and landed inside the lamp on a small edge of the holding structure. Before it got replaced by a co-worker Shallenberger observed that the spring rotated by some sort of electromagnetic force. He then conceived the idea that perhaps this force field could be used to turn some small wheels in such a way that they could measure electricity. Shallenberger developed that force field concept into a mechanical device that could measure alternating current usage.
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The Jarvik-7 was a mechanical device, made of polyurethane and aluminium, which was used to replace the two ventricles of a human heart. Jarvik-7 artificial heart The pumping action came from air, compressed by an electrical unit located outside of the patient's body. The human-made organ had two separate ventricles grafted with Dacron sleeves to the native atria and great vessels. It was powered by a 400-pound (180 kg) air compressor, connected to the heart, through a tube coming out of the patient body.
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Charles Fredrick Wiesenthal (1726–1789) was a German physician and inventor who was awarded the patent for the first known mechanical device for sewing in 1755. One might argue that he invented the sewing machine. He was born in the state of Brandenburg, Germany, but was in England at the time of invention, and lived from 1755 to 1789 in Baltimore. For his invention of a double pointed needle with an eye at one end, he received the British Patent No. 701 (1755), but after in 1830 Barthélemy Thimonnier reinvented the sewing machine.
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Gripper mechanism, 5. Gripper fingers In robotics, a Remote Center Compliance, Remote Center of Compliance or RCC is a mechanical device that facilitates automated assembly by preventing peg-like objects from jamming when they are inserted into a hole with tight clearance. In a naive design without an RCC, a robot might pick up a peg with its gripper, center the peg over the hole and then push the peg along the axis of the hole. If the peg is perfectly aligned and centered, it would then slide into the hole.
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On diseases of the nervous system Anstie wrote several memoirs, and finally in 1871 a book on Neuralgia and the Diseases which resemble it. He also contributed an article on the same subject to Sir John Russell Reynolds's System of Medicine. The views which he expounded in both works were to a large extent original, and doubtless open to criticism; but many of his observations are of permanent value. In 1867 he gave two lectures at the College of Physicians on the sphygmograph, a mechanical device used to measure blood pressure.
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Hybrid rocket propulsion system conceptual overview In its simplest form a hybrid rocket consists of a pressure vessel (tank) containing the liquid oxidiser, the combustion chamber containing the solid propellant, and a mechanical device separating the two. When thrust is desired, a suitable ignition source is introduced in the combustion chamber and the valve is opened. The liquid oxidiser (or gas) flows into the combustion chamber where it is vaporized and then reacted with the solid propellant. Combustion occurs in a boundary layer diffusion flame adjacent to the surface of the solid propellant.
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Thus exposure to even low levels of sterilant gas should not be treated casually and most facilities go to great lengths to adequately protect their employees. In addition to toxicity, ethylene oxide is flammable (from above 3%) and ozone is damaging to equipment not designed to resist it. Sterilizer manufacturers go to great lengths to make their products as safe as possible but, as with any mechanical device, they can and sometimes do fail and leaks have been reported. The odor threshold for these gases is above the PELs and for ethylene oxide it is 500 ppm, approaching that of the IDLH.
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A stick pusher is a device installed in some fixed-wing aircraft to prevent the aircraft from entering an aerodynamic stall. Some large fixed-wing aircraft display poor post-stall handling characteristics or are vulnerable to deep stall. To prevent such an aircraft approaching the stall the aircraft designer may install a hydraulic or electro-mechanical device that pushes forward on the elevator control system whenever the aircraft's angle of attack reaches the pre-determined value, and then ceases to push when the angle of attack falls sufficiently. A system for this purpose is known as a stick pusher.
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A nipper or tile nipper (like a pair of scissors or pliers) is a tool used to "nip" or remove small amounts of a hard material, such as pieces of a tile which needs to be fitted around an odd or irregular shape. Drop forged tile nippers with soft plastic handle sheaths.For tile that requires a straight cut a tile cutter is used. This is a small mechanical device where the tile is placed, aligned and clamped on a platform; lightly "scored" with a cutting wheel and snapped in two with a handled slicer (blade similar to a paper cutter in appearance).
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She answered: "You always need a screwdriver for something." Rybczynski discovered that the screwdriver is a relatively new addition to the toolbox, an invention of the Late Middle Ages in Europe and the only major mechanical device not independently invented by the Chinese. Leonardo da Vinci was there at the start, designing a number of screw-cutting machines with interchangeable gears. Nevertheless, it took generations for the screw (and with it, the screwdriver and lathe) to come into general use, and it was not until modern times that improvements such as slotted screws came into being.
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He was then briefly employed as a computer programmer, during which time he subsequently claimed to have written much of the band's early material, before enrolling at Manchester. Smith was so impressed with the quality of Hammill's original material that the two agreed to form a band together. The band name chosen from Smith's list was based on a Van de Graaff generator, a mechanical device that produces static electricity with lightning-like flashes – the misspellings are accidental. Smith recalls the reason for this may have been that Van de Graaff died in 1967, which was widely reported in the media.
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Another ex- collaborator of Dr. Hell. After a car accident, Hell turns him into a cyborg, but this time holds back his unfortunate tendency to turn those he brings back to life into total freaks and hence Heinrich only has blue skin and is full of stitches all over his body. His head sports a mechanical device, that extends to one of the sides of his face and covers his right eye, which can fire beams. Heinrich had worked for Hell developing a powerful monster, but for reasons unclear he deserts him and takes away the unfinished robot along with him.
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The major innovation was that the Analytical Engine was to be programmed using punched cards: the Engine was intended to use loops of Jacquard's punched cards to control a mechanical calculator, which could use as input the results of preceding computations. The machine was also intended to employ several features subsequently used in modern computers, including sequential control, branching and looping. It would have been the first mechanical device to be, in principle, Turing- complete. The Engine was not a single physical machine, but rather a succession of designs that Babbage tinkered with until his death in 1871.
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The usage of "engine" here is in the mechanical-device sense, not the prime-mover sense, as in the steam engines which were the standard industrial power source for many years. The works would have one large steam engine which would provide power to all the machines via a line shaft system of belts. Therefore, early engine lathes were generally 'cone heads', in that the spindle usually had attached to it a multi-step pulley called a cone pulley designed to accept a flat belt. Different spindle speeds could be obtained by moving the flat belt to different steps on the cone pulley.
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Office stapler A spring-loaded stapler A stapler is a mechanical device that joins pages of paper or similar material by driving a thin metal staple through the sheets and folding the ends. Staplers are widely used in government, business, offices, work places, homes and schools. The word "stapler" can actually refer to a number of different devices of varying uses. In addition to joining paper sheets together, staplers can also be used in a surgical setting to join tissue together with surgical staples to close a surgical wound (much in the same way as sutures).
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Pulmonary ventilation (and hence external parts of respiration) is achieved through manual insufflation of the lungs either by the rescuer blowing into the patient's lungs (mouth-to-mouth resuscitation), or by using a mechanical device to do so. This method of insufflation has been proved more effective than methods which involve mechanical manipulation of the patient's chest or arms, such as the Silvester method. Mouth-to-mouth resuscitation is also part of cardiopulmonary resuscitation (CPR) making it an essential skill for first aid. In some situations, mouth to mouth is also performed separately, for instance in near-drowning and opiate overdoses.
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The B-scope's display represented a horizontal "slice" of the airspace on both sides of the aircraft out to the tracking angles of the radar. B-scope displays were common in airborne radars in the 1950s and 60s, which were mechanically scanned from side to side, and sometimes up and down as well. The spot was swept up the Y-axis in a fashion similar to the A-scope's X-axis, with distances "up" the display indicating greater range. This signal was mixed with a varying voltage being generated by a mechanical device that depended on the current horizontal angle of the antenna.
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In electrical engineering, power engineering, and the electric power industry, power conversion is converting electric energy from one form to another such as converting between AC and DC; or changing the voltage or frequency; or some combination of these. A power converter is an electrical or electro-mechanical device for converting electrical energy. This could be as simple as a transformer to change the voltage of AC power, but also includes far more complex systems. The term can also refer to a class of electrical machinery that is used to convert one frequency of alternating current into another frequency.
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Dutch alt=A brass, clock-like mechanical device in a museum display case, with a small card with the number 8 printed on it. The face of the device is split into several rings, with the Roman numerals I through XI (and 0) on one of these rings. For the next two and a half centuries, because of the satellite's small size and distance, Io remained a featureless, 5th-magnitude point of light in astronomers' telescopes. So, the determination of its orbital period, along with those of the other Galilean satellites, was an early focus for astronomers.
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Of particular interest is the extent to which heat is converted to usable work, and the relationship between the confining force and the extent of expansion. During isothermal expansion, both and change along an isotherm with a constant product. Consider a working gas in a cylindrical chamber 1 m high and 1 m2 area at 400 K in static equilibrium. The surroundings consist of air at 300 K and 1 atm pressure (designated as ). The working gas is confined by a piston connected to a mechanical device that exerts a force sufficient to create a pressure of 2 atm (state ).
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Ranger's creation was a music box-style electro-mechanical device, which played the three-note sequence at the push of a button."NBC's Chimeless Chimes", Electronics, October 1932, page 321. (americanradiohistory.com)Michael Shoshani, at his site "The NBC Chimes Museum", contends that the notes produced by the manual chimes were generally "C-F-A" rather than "G-E-C", and it was only after the switch to the Rangertone devices that the NBC chimes became "G-E-C". The initial installation was made at New York City headquarters, and went into operation on September 18, 1932.
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Some ELCBs do not respond to rectified fault current. This issue is the same in principle with ELCBs and RCDs, but ELCBs are on average much older and specifications have improved considerably over the years, so an old ELCB is more likely to have some fault current waveform that it will not respond to. With any mechanical device, failures occur, and ELCBs should ideally be tested periodically to ensure they still work. If either of the Earth wires become disconnected from the ELCB, it will no longer trip and the installation will often no longer be properly Earthed.
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British SF water craft, (section 'Welfreighter') covertshores.blogspot.com, accessed 30 May 2020 The special agents would then be disembarked and go ashore along with their equipment, stored in the special containers. The Welfreighter would then sail out to sea and submerge itself to wait until the next night. At a pre-arranged time, or upon receiving a sound signal from the landing party (made by a mechanical device) it would surface again and pick up the agents, before heading out to sea either to rendezvous with a larger surface vessel or return to base under its own power.
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Even as America's westward expansion allowed over 400 million acres (1,600,000 km²) of new land to be put under cultivation, between 1870 and 1910 the number of Americans involved in farming or farm labor dropped by a third. New farming techniques and agricultural mechanization facilitated both processes. Cyrus McCormick's reaper (invented in 1834) allowed farmers to quadruple their harvesting efficiency by replacing hand labor with a mechanical device. John Deere invented the steel plow in 1837, keeping the soil from sticking to the plow and making it easier to farm in the rich prairies of the Midwest.
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He sought to mimic the working in a mechanical device, substituting an elastic membrane for the tympanum, a series of levers for the ossicle, which moved a stylus he proposed would press on a paper, wood, or glass surface covered in lampblack. On 26 January 1857, he delivered his design in a sealed envelope to the French Academy. On 25 March 1857, he received French patent #17,897/31,470 for the phonautograph. To collect sound, the phonautograph used a horn attached to a diaphragm which vibrated a stiff bristle which inscribed an image on a lampblack-coated, hand-cranked cylinder.
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The train had locomotives that could automatically restart the air-brake system in the event of a brake failure, provided that these locomotives were not shut down as they would be. Also, the TSB found that the “reset safety control” on the lead locomotive was not wired to set the entire train's brakes in the event of an engine failure. In addition to air brake systems, all locomotives and rail cars are equipped with at least one hand brake. This is a mechanical device that applies brake shoes to the wheels to prevent them from moving.
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Some art historians believe that Vermeer used a device called a camera obscura to help him create the perspective in his painting. Instead of using a mathematical formula or a vanishing point, Vermeer probably used this mechanical device to show him what the relative size of the people should be. A camera obscura is similar to a camera as it projects an image seen through the aperture into a dark chamber. There is no historical evidence that Vermeer used such a device but the way he portrays perspective in many of his paintings, including Officer and Laughing Girl, suggests that he did.
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An example that uses Euclid's algorithm appears below. Computers (and computors), models of computation: A computer (or human "computor"In his essay "Calculations by Man and Machine: Conceptual Analysis" Seig 2002:390 credits this distinction to Robin Gandy, cf Wilfred Seig, et al., 2002 Reflections on the foundations of mathematics: Essays in honor of Solomon Feferman, Association for Symbolic Logic, A.K. Peters Ltd, Natick, MA.) is a restricted type of machine, a "discrete deterministic mechanical device"cf Gandy 1980:126, Robin Gandy Church's Thesis and Principles for Mechanisms appearing on pp. 123–148 in J. Barwise et al.
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Using a pressure washer, or any other gas powered device, to clean a roof at more than 100 PSI can damage the roof. The U.S. based Asphalt Roofing Manufactureres' Association specifies the use of a bleach cleaning solution, without the use of a pressure washer, to remove algae from a roof. ARMA discourages the use of a pressure washer, a flat-surface cleaner or any other mechanical device to clean a roof. Safe, effective soft washing cannot be achieved with a pressure washer, as the Venturi device (downstreaming) cannot achieve sufficient strength solution to kill the organisms, cleaning the roof.
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This distinction started around 1906 with the invention by Lee De Forest of the triode, which made electrical amplification of weak radio signals and audio signals possible with a non-mechanical device. Until 1950, this field was called "radio technology" because its principal application was the design and theory of radio transmitters, receivers, and vacuum tubes. The term "solid-state electronics" emerged after the first working transistor was invented by William Shockley, Walter Houser Brattain and John Bardeen at Bell Labs in 1947. The MOSFET (MOS transistor) was later invented by Mohamed Atalla and Dawon Kahng at Bell Labs in 1959.
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Leo the Philosopher is noted to have worked on a signal system using clocks in the Byzantine Empire in 850, connecting Constantinople with the Cicilian Frontier and was a continuation of the complex city clocks in Eastern Rome. These grand machines diffused into the Arabian Empire under Harun al-Rashid. Another grand mechanical device was the Organ, which was reintroduced in 757 when Constantine V gifted one to Pepin the short. With the exception of a few machines, engineering and science stagnated in the West due to the collapse of the Roman Empire during late antiquity.
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In addition to controlling the roll or bank of an aircraft, as do conventional ailerons, both flaperons can be lowered together to reduce stall speed, similarly to a set of flaps. On a plane with flaperons, the pilot still has the standard separate controls for ailerons and flaps, but the flap control also varies the flaperon's range of movement. A mechanical device called a "mixer" is used to combine the pilot's input into the flaperons. While the use of flaperons rather than ailerons and flaps might seem to be a simplification, some complexity remains through the intricacies of the mixer.
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Example by Cranach, 1545 A notable late appearance is in the two versions of a painting by El Greco of about 1578.Variously called The Adoration of the Name of Jesus (National Gallery, London)image , The Dream of Philip II or Allegory of the Battle of Lepanto (Escurial).image Political cartoons still showed Napoleon leading his troops into one.from first external link Nuremberg, Saint Lawrence parish church: Western portal, 1340s Medieval theatre often had a hellmouth prop or mechanical device which was used to attempt to scare the audience by vividly dramatizing an entrance to Hell.
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A perrotine printing machine Double sided Perrotinen printing machine (1909) Haubold GmbH, Chemnitz (Blue Printing Museum Pápa, Hungary) The perrotine is a block-printing machine invented by Louis-Jérôme Perrot (1798 in Senlis - 1878 in Paris), and practically speaking is the only successful mechanical device ever introduced for this purpose. For some reason or other it has rarely been used in England, but its value was almost immediately recognized on the Continent, and although block printing of all sorts has been replaced to such an enormous extent by roller printing, the perrotine is still largely employed in French, German, and Italian works.
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In sailing, it is a mechanical device used to modify the location at which lines used to control sails (such as sheets) are attached to the vessel. The attachment is often by means of a block through which the line runs; the block can move along the traveller. This allows independent control of the direction and tension of the line running through the block, which allows the sailor to position the block in the optimal location for the wind conditions and desired sail trim. This kind of traveller is often a metal track, which is attached to the deck of the boat.
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The fuel pump is typically driven via a coupling connecting its shaft to that of the motor's. Oil burners also include combustion-proving devices to prevent out-of-control combustion - Primary Control; Safety Control; Cad Cell Control; Master Control; Fire-Eye Control are all common names for the 'combustion safety control'. In the United States residential home heating oil market the "vaporizing gun burner" is the most common mechanical device used to heat a home or small commercial forced air space with. Depending on the manufacturer these simple burners will see a lifespan if regularly maintained for decades.
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The spark ignition system of mechanically controlled gasoline internal combustion engines consist of a mechanical device, known as a distributor, that triggers and distributes ignition spark to each cylinder relative to piston position--in crankshaft degrees relative to top dead centre (TDC). Spark timing, relative to piston position, is based on static (initial or base) timing without mechanical advance. The distributor's centrifugal timing advance mechanism makes the spark occur sooner as engine speed increases. Many of these engines will also use a vacuum advance that advances timing during light loads and deceleration, independent of the centrifugal advance.
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The Dean drive was a mechanical device concept promoted by inventor Norman L. Dean. Dean claimed that his device was a "reactionless thruster" and that his working models could demonstrate this effect. He held several private demonstrations but never revealed the exact design of the models nor allowed independent analysis of them. Dean's claims of reactionless thrust generation were subsequently shown to be in error and the "thrust" producing the directional motion was likely to be caused by friction between the device and the surface on which the device was resting and would not work in free space.
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The Benson opinion indicated that the article > had to be a physical object, such as a lump of rubber (to be transformed > from raw to cured state), a piece of leather (to be transformed from > untanned skin to tanned leather),As Benson explains, the vulcanization of > rubber and tanning of leather are examples of processes that can be carried > out "irrespective of any particular form of machinery or mechanical device," > according to the decision in O'Reilly v. Morse, 56 U.S. (15 How.) 62 (1853). > See Benson, 409 U.S. at 69. or a pile of flour (to be transformed from > coarse to superfine particles).
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In 1949, Ángela Ruiz Robles, a teacher from Ferrol, Spain, patented the Enciclopedia Mecánica, or the Mechanical Encyclopedia, a mechanical device which operated on compressed air where text and graphics were contained on spools that users would load onto rotating spindles. Her idea was to create a device which would decrease the number of books that her pupils carried to school. The final device was planned to include audio recordings, a magnifying glass, a calculator and an electric light for night reading. Her device was never put into production but a prototype is kept in the National Museum of Science and Technology in A Coruña.
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General tau theory deals with the guidance of bodily movements. It was developed from work on J. J. Gibson's notion of ecological invariants in the visual flow-field during a perception-in-action event, and subsequently generalised by David N. Lee in the late 1990s to an amodal theory of perceptuomotor control. The theory considers the organism acting as a unified whole in dynamic relations with its environment, rather than conceiving of the organism as a complex mechanical device reducible into analysable parts. The theory is embedded in ecological thinking, paying attention to both organism and environment, and drawing information from their forms of interaction.
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One of the polygraphs used by Thomas Jefferson, a portable version In document duplication (as opposed to law enforcement and such), a Polygraph is a mechanical device that moves a second pen parallel to one held by a writer, enabling the writer to make a duplicate of a document as it is written. Polygraphs appeared in the 17th century but did not become popular until 1800. John Isaac Hawkins and Charles Willson Peale patented a polygraph in the US in 1803, and beginning in 1804 Thomas Jefferson collaborated with them in working on improvements in the machine. He used a polygraph for the rest of his life.
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Fr. Toufar was one of many priests subjected to close monitoring and suspected of anti-state activities. The police officer František Goldbricht was in the church on 21 December 1949, a few days before the StB agents presented the story about the built-in mechanical device. During the reconstruction of the case in 1968, he claimed that he didn't notice any such thing behind or under the altar. The StB claimed that the ropes and wires needed to set the cross into motion were hidden behind a bouquet of flowers on the altar, which was improbable as Church rules prohibit placing flowers on altars during Advent.
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Following a meeting between McCarthy and Professor Sir Eric Ash in July 2007, Ash reported that "the Orbo is a mechanical device which uses powerful magnets on the rim of a rotor and further magnets on an outer shell." During this meeting, McCarthy referred to the law of conservation of energy as scientific dogma. However, conservation of energy is a fundamental principle of physics, more specifically a consequence of the unchanging nature of physical laws with time by Noether's Theorem. Ash said that there was no comparison with religious dogma since there is no flexibility in choosing to accept that energy is always conserved.
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Sparoair III utilised a redesigned second-stage motor, and could be launched from the F-4 Phantom II; however, any aircraft capable of launching the Sparrow III AAM could launch the Sparoair. The Sparoair III utilised the aircraft's Low Altitude Bombing System (LABS) circuits to initiate launch; the second stage was ignited via a mechanical device armed by the acceleration of the first stage. The first Sparoair III was launched on 8 July 1965; it proved a partial failure as the second stage failed to ignite. The second launch on 26 May 1966 failed after six seconds of second-stage burn when the vehicle exploded.
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Breech from Russian 122 mm M1910 howitzer, modified and combined with 105 mm H37 howitzer barrel Breech from Russian 122 mm M1910 howitzer, modified and combined with 105 mm H37 howitzer barrel M109 breech plug An interrupted screw or interrupted thread is a mechanical device typically used in the breech of artillery guns. It is believed to have been invented in 1845.The history of science and technology by Bryan H. Bunch p.355 The system has also been used to close other applications, including the joint between helmet (bonnet) and breastplate (corselet) of standard diving suit helmets, and the locks of diving chambers.
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Grapple Truck Example (Animation) A grapple truck is a truck that has a grapple loader mounted to its frame which is used for loading and sometimes hauling bulky waste. A grapple loader is defined by ANSI Z245.1 as: > “a hydro-mechanical device able to rotate on an axis with a grapple or > bucket attached at the end of the boom, which is intended for the collection > of waste that due to size and/or weight is impractical to containerize.” Grapple trucks are commonly used by municipal sanitation or public works departments, and by waste collection companies. Grapple trucks can also sometimes be used in road construction and repair.
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The earliest known illustration of a vertical biunial lantern, probably provided by E.G. Wood, appeared in the Horne & Thornthwaite catalogue in 1857. Later on triple lanterns enabled additional effects, for instance the effect of snow falling while a green landscape dissolves into a snowy winter version. A mechanical device could be fitted on the magic lantern, which locked up a diaphragm on the first slide slowly whilst a diaphragm on a second slide opened simultaneously. Philip Carpenter's copper- plate printing process, introduced in 1823, may have made it much easier to create duplicate slides with printed outlines that could then be colored differently to create dissolving view slides.
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The archer's lower trapezius muscles are used to pull the arrow to the anchor point. Some modern recurve bows are equipped with a mechanical device, called a clicker, which produces a clicking sound when the archer reaches the correct draw length. In contrast, traditional English Longbow shooters step "into the bow", exerting force with both the bow arm and the string hand arm simultaneously, especially when using bows having draw weights from to over . Heavily stacked traditional bows (recurves, long bows, and the like) are released immediately upon reaching full draw at maximum weight, whereas compound bows reach their maximum weight around the last , dropping holding weight significantly at full draw.
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Blowout preventer Cameron International Corporation's EVO Ram BOP Patent Drawing (with legend) Patent Drawing of Hydril Annular BOP (with legend) Patent Drawing of a Subsea BOP Stack (with legend) A blowout preventer (BOP) is a specialized valve or similar mechanical device, used to seal, control and monitor oil and gas wells to prevent blowouts, the uncontrolled release of crude oil or natural gas from a well. They are usually installed in stacks of other valves. Blowout preventers were developed to cope with extreme erratic pressures and uncontrolled flow (formation kick) emanating from a well reservoir during drilling. Kicks can lead to a potentially catastrophic event known as a blowout.
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Power cords for sensitive instruments, or audio/video equipment may also include a shield over the power conductors to minimize electromagnetic interference. A power cord or appliance coupler may have a retaining clamp, a mechanical device that prevents it from inadvertently being pulled or shaken loose. Typical application areas with stricter safety requirements include medical technology, stage and lighting technology, and computing equipment. For specialty equipment such as construction machinery, sound and lighting equipment, emergency medical defibrillators and electrical power tools, used in locations without a convenient power source, extension cords are used to carry the electric current up to hundreds of feet away from an outlet.
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His device worked as designed, but only from a wooden ship; attempts to get it to work on a metal ship such as a destroyer failed. alt=Looking down from above at a room at an intricate mechanical device which fills the room. In the background, a man sits at a desk next to a filing cabinet. Bush left Tufts in 1919, although he remained employed by AMRAD, and joined the Department of Electrical Engineering at Massachusetts Institute of Technology (MIT), where he worked under Dugald C. Jackson. In 1922, he collaborated with fellow MIT professor William H. Timbie on Principles of Electrical Engineering, an introductory textbook.
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A traction splint most commonly refers to a splinting device that uses straps attaching over the pelvis or hip as an anchor, a metal rod(s) to mimic normal bone stability and limb length, and a mechanical device to apply traction (used in an attempt to reduce pain, realign the limb, and minimize vascular and neurological complication) to the limb. The use of traction splints to treat complete long bone fractures of the femur is common in prehospital care. Evidence to support their usage, however, is poor.A dynamic traction splint has also been developed for intra-articular fractures of the phalanges of the hand.
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A blast furnace smelting cast iron, with bellows operated by waterwheel and mechanical device, from the Nong Shu by Wang Zhen, 1313 AD This arrangement of allowing competitive industry to flourish in some regions while setting up its opposite of strict government-regulated and monopolized production and trade in others was not exclusive to iron manufacturing.Needham, Volume 4, Part 2, 23. In the beginning of the Song, the government supported competitive silk mills and brocade workshops in the eastern provinces and in the capital city of Kaifeng. However, at the same time the government established strict legal prohibition on the merchant trade of privately produced silk in Sichuan province.
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Retrieved February 26, 2016.Patmore,David. The Columbia Graphophone Company, 1923–1931: Commercial Competition, Cultural Plurality and Beyond, Music Department of, University of Sheffield. Retrieved from Musicae Scientiae website February 26, 2016 Until late 1925, all record players reproduced sound by purely mechanical means and relied on a so-called "amplifying" horn to efficiently couple the vibrations of the stylus and diaphragm to the space occupied by the listeners. In 1906, the Victor Talking Machine Company, Columbia's arch competitor, introduced a line of models in which the horn and other hardware were concealed within a cabinet made to look like fine furniture rather than a mechanical device.
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Piano construction is by now a rather conservative area; most of the technological advances were made by about 1900, and indeed it is possible that some contemporary piano buyers might actually be suspicious of pianos that are made differently from the older kind. Yet piano manufacturers, especially the smaller ones, are still experimenting with ways to build better pianos. In the early 21st century, the obvious way to raise the technological level of any mechanical device is to use digital technology to control it (compare the mid 19th century, where the obvious route was to make some of its parts from steel; e.g. piano strings).
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This system produced a dim orange image square, with 48 scan lines, at a frame rate of 7.5 frames per second. Mechanical television or mechanical scan television is a television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode ray tube (CRT) televisions. Subsequently, modern solid-state liquid-crystal displays (LCD) are now used to create and display television pictures.
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The show is involved with racing and/or customizing trucks, and in the past has included segments called "How It Works" where the host would visit with various technical instructors at Wyotech to discuss automotive related topics such as how a particular mechanical device operated or to review the specialized equipment it takes to diagnose or repair a vehicle. The show was originally hosted by Stacey David and Mel Fair, who was also the program's director, writer, and producer. Fair left the show at the end of the first season to pursue an acting career leaving David as the show's only host. In 2005, David left the show for unknown reasons.
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Over that time, small and large scale industrial plants and manufacturing processes have always needed accurate and reliable process measurements. Originally the demand would only be for measurement instruments, but as process complexity grew, automatic control became more common. The huge growth in process control instrumentation was boosted by the use of pneumatic controllers, which were used widely after 1930 when Clesson E Mason of the Foxboro Company invented a wide-band pneumatic controller by combining the nozzle and flapper high-gain pneumatic amplifier with negative feedback in a completely mechanical device. The repair and calibration of these devices required both fine mechanical skills and an understanding of the control operation.
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He is the inventor of the crécise a mechanical device allowing the production of rammed earth bricks, he derives from this device another invention, l'épurateur de légumes, allowing to dry vegetables. He also invents the pierre carton and studies concrete. He was a productive author, producing 72 booklets relating to rammed earth construction, and these writings were translated and widely spread, helping this construction style to flourish. He is also interested in agriculture, being the first author, with Léon de Perthuis de Laillevault in 1805 and 1810, to study rural construction in the French agronomy, in an apology of rammed earth and its use.
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Roller screw A roller screw, also known as a planetary roller screw or satellite roller screw, is a low-friction precision screw-type actuator, a mechanical device for converting rotational motion to linear motion, or vice versa. Planetary roller screws are used as the actuating mechanism in many electro-mechanical linear actuators. Due to its complexity the roller screw is a relatively expensive actuator (as much as an order of magnitude more expensive than ball screws), but may be suitable for high-precision, high- speed, heavy-load, long-life and heavy-use applications. Roller screw mechanisms are commonly incorporated into motion/positioning systems in a variety of industries such as manufacturing and aerospace.
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Usually a mechanical device, activated when the pressure within the turbocharger reaches a certain point, opening a valve, thus reducing boost pressure. Used primarily for safety (speed reduction of the racing cars) or cost (reducing stress on both turbo and engine, lengthening the life of the parts prior to failure or rebuild). Not to be confused with a Blow-Off Valve. ;Wear the shiny off: A term used, mostly within drag racing, when a brand new car either hits the wall, or, in the Pro Stock class, when a new car flips over into its top and continues down the track for a considerable length, peeling the paint, or more common in recent years, vinyl wrap, off.
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Quite apart from those deaths caused in spontaneous gunfights, Davenport has been suspected—appropriately—of engineering some outcomes so that the death of a miscreant is virtually certain. Unusually for a police officer, he has more than once been a target of assassination attempts by criminals; his numerous contacts in the media consider him a good interview, but editors persistently criticize his violence. Davenport feels no hesitation about killing defenseless criminals who present no threat to him. In the first Davenport novel, Rules of Prey, he makes a mechanical device to create the illusion that he is in a gunfight when he kills Louis Vullion, aka "the Maddog," the criminal in that matter.
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Documentary evidence is any evidence that is, or can be, introduced at a trial in the form of documents, as distinguished from oral testimony. Documentary evidence is most widely understood to refer to writings on paper (such as an invoice, a contract or a will), but the term can also apply to any media by which information can be preserved, such as photographs; a medium that needs a mechanical device to be viewed, such as a tape recording or film; and a printed form of digital evidence, such as emails or spreadsheets. Normally, before documentary evidence is admissible as evidence, it must be proved by other evidence from a witness that the document is genuine, called "laying a foundation".
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Table game is the term used to distinguish games of chance such as blackjack, craps, roulette and baccarat that are played against the casino and operated by one or more live croupiers, from those performed on a mechanical device like a slot machine or games played against other players instead of the casino such as standard poker. They are popularly played in casinos and involve some form of legal gambling, but also are played privately by varying house rules. The term has significance in that some jurisdictions permit casinos to have only slots and no table games. In some states, this law has resulted in casinos employing electronic table games, such as roulette, blackjack, and craps.
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Some zithers combine stoppable (melody) strings with a greater number of "open" harmony or chord strings. On instruments with stoppable strings, such as the violin or guitar, the player can shorten the vibrating length of the string, using their fingers directly (or more rarely through some mechanical device, as in the nyckelharpa and the hurdy-gurdy). Such instruments usually have a fingerboard attached to the neck of the instrument, that provides a hard flat surface the player can stop the strings against. On some string instruments, the fingerboard has frets, raised ridges perpendicular to the strings, that stop the string at precise intervals, in which case the fingerboard is also called a fretboard.
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A late 20th Century can opener with a rotating cutting wheel and a counter- rotating serrated wheel, for left-handed use. Using a can opener to open a can A can opener in action A can opener (in North American English and Australian English) or tin opener (sometimes used in British English) is a mechanical device used to open tin cans (metal cans). Although preservation of food using tin cans had been practiced since at least 1772 in the Netherlands, the first can openers were not patented until 1855 in England and 1858 in the United States. These early openers were basically variations of a knife, though the 1855 design continues to be produced.
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300 AD), recorded the use of the odometer, providing description (attributing it to the Western Han era, from 202 BC–9 AD). The passage in the Jin Shu expanded upon this, explaining that it took a similar form to the mechanical device of the south-pointing chariot invented by Ma Jun (200–265, see also differential gear). As recorded in the Song Shi of the Song Dynasty (960-1279 AD), the odometer and south-pointing chariot were combined into one wheeled device by engineers of the 9th century, 11th century, and 12th century. The Sunzi Suanjing (Master Sun's Mathematical Manual), dated from the 3rd century to 5th century, presented a mathematical problem for students involving the odometer.
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As early as the Han dynasty, when the state needed to accurately measure distances traveled throughout the empire, the Chinese relied on a mechanical odometer. The Chinese odometer was a wheeled carriage, its gearwork being driven by the rotation of the carriage's wheels; specific units of distance—the Chinese li—were marked by the mechanical striking of a drum or bell as an auditory signal. The specifications for the 11th century odometer were written by Chief Chamberlain Lu Daolong, who is quoted extensively in the historical text of the Song Shi (compiled by 1345). In the Song period, the odometer vehicle was also combined with another old complex mechanical device known as the south- pointing chariot.
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This simple mechanical device gets its name from the resemblance of its jaws to those of an alligator or crocodile. It is used to connect an electrical cable to a battery or some other component. Functioning much like a spring-loaded clothespin, the clip's tapered, serrated jaws are forced together by a spring to grip an object. When manufactured for electronics testing and evaluation, one jaw of the clip is typically permanently crimped or soldered to a wire, or is bent to form the inner tubular contact of a ~4 mm female banana jack, enabling quick non- permanent connection between a circuit under test and laboratory equipment or to another electrical circuit.
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Diagram of a hydrocyclone: A hydrocyclone (often referred to by the shortened form cyclone) is a device to classify, separate or sort particles in a liquid suspension based on the ratio of their centripetal force to fluid resistance. This ratio is high for dense (where separation by density is required) and coarse (where separation by size is required) particles, and low for light and fine particles. Hydrocyclones also find application in the separation of liquids of different densities. A different description: A hydrocyclone is a mechanical device designed to reduce or increase the concentration of a dispersed phase, solid, liquid or gas of different density, by means of centripetal forces or centrifugal forces within a vortex.
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The concentratorA concentrator is a mechanical device which separates ore from dirt, debris, and tailings. opened in March 1891; Brückner cylindersA Brückner cylinder is a rotating, brick-lined, horizontal metal cylinder which heats ore, burning off undesirable chemicals such as sulphur. and reverberatory furnaces in April 1892; converters in August 1892; refining furnacesA refining furnace melts the metal into a liquid. Undesirable material (or "dross") usually floats to the top, allowing it to be removed. in January 1893; an electrolytic refinery in February 1893; and blast furnaces in April 1893.Mutschler, p. 13. The cost of the original plant was $2 million,Raymer, p. 18. and by 1892 more than 1,000 workers were employed at the smelter.
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The Exploding Cigarette Box, the snake nut can, itching powder, the stink bomb, and the dribble glass all entered the Adams line in the next decade. In 1928, Sam invented the prototype of what was to become the joy buzzer, a mechanical device placed in the hand, which emitted a loud vibrating buzz, when a button on the buzzer was depressed. This would usually occur when two people shook hands. He took the prototype to Dresden, Germany, where a tool and die maker created the tooling to make small parts for the item, which was now just 3.2 cm (1-1/4 inches) in diameter and 1.8 cm (3/4 inch) thick.
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William Greener (1806–1869) was an English inventor and gunmaker. He developed a self-expanding bullet in 1835, an electric lamp in 1846 (patent specification 11076 of that year) some 33 years before Thomas Edison's patent in 1879. William Greener also invented the percussion system for firing cannon, made improvements to the miner's safety lamp and won a prize for designing a mechanical device by which four gates at railway/road level crossings could be opened or closed simultaneously. He also invented a self- righting lifeboat, which was exhibited with a rocket gun and several of his famous percussion muzzle-loading shotguns and rifles at the Great Exhibition of 1851, where he was awarded a gold medal.
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The German navy relied upon the re-enciphering process to ensure security, but the key used for this was not changed until 20 October and then not changed again for another three months. The actual substitution table used for enciphering was produced by a mechanical device with slides and compartments for the letters. Orders to change the key were sent out by wireless, and frequently confusion during the changeover period led to messages being sent out using the new cipher and then being repeated with the old. Key changes continued to occur infrequently, only 6 times during 1915 from March to the end of the year, but then more frequently from 1916.
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For these cases, the Pennsylvania Department of Education sets an annual tuition rate for each school district. It is the amount the public school district pays to a charter school for each resident student that attends the charter and it is the amount a nonresident student's parents must pay to attend the Montgomery Area School District's schools. The 2012 tuition rates are Elementary School - $8,995.97, High School -. $10,223.35 Montgomery Area School District is funded by a combination of: a local earned income tax - 1.25%, a property tax, a local service tax $5, Mechanical Device Tax/Per Device $125, a real estate transfer tax 0.5%, coupled with substantial funding from the Commonwealth of Pennsylvania and the federal government.
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Horses inside a European style automated hot walker, not tied to the mechanism A hot walker or groom hand-walking a racehorse A hot walker within the practice of horse management is a person such as a groom or stable worker who hand walks hot, sweaty horses after a workout, particularly after work on a racetrack.Hot-walker - Definition and More from the Free Merriam-Webster Dictionary The term hot walker may also refer to a mechanical device designed for the same purpose.What Is a Hot Walker? Hot walking allows the horse to cool down after hard exercise, which helps the horse's pulse and respiration return to normal, reduces stiffness, and minimizes the risk of health issues such as influenza, colic or equine exertional rhabdommyolysis.
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However, the IMP would become crucial if manual retrorocket activation became compromised by failure of either the flight sequencer or communications with mission control, as did happen on Voskhod 2. Furthermore, given the scarcity of Soviet communication stations on Earth, the cosmonauts spent most of their time out of range with ground control and needed instruments to assess their position relative to the ground. By contrast, the US crewed space programs used a similar, mechanical positional indicator only during two of its early Mercury missions before discarding it (and using its former niche in Mercury's instrument panel as an equivalent to a car's glove compartment). The American instrument was a crude, smaller equivalent to the Soviets', an all-mechanical device (hand-wound) of limited complexity.
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Stealing signs is not necessarily a violation of Major League Baseball's (MLB) rulebook; it depends how the signs are stolen. At the December 1961 Winter Meetings, the National League banned the use of a "mechanical device" to steal signs. The use of electronic equipment is not specifically forbidden by MLB rules, but in 2001, Sandy Alderson, while serving as executive vice president for baseball operations of MLB, issued a memorandum stating that teams cannot use electronic equipment to communicate with each other during games, especially for the purpose of stealing signs. Before the 2019 season, in an effort to reduce illegal sign stealing, MLB commissioner Rob Manfred instituted specific prohibitions on where teams could position cameras and how instant replay officials can communicate with managers.
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Sign stealing is not inherently against baseball rules and has long been considered part of the game. In 2017, The New York Times wrote that sign stealing was "something of an art form in baseball" which "is tolerated, even admired". Many players and coaches are considered masters at stealing signs. However, Major League Baseball (MLB) has long frowned upon the use of technology to steal signs. In 1961, the National League (NL) banned the use of a "mechanical device" to steal signs. While MLB did not, at the time, specifically ban electronic equipment, it issued a memorandum in 2001 stating that teams cannot use electronic equipment to communicate with each other during games, especially for the purpose of stealing signs.
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In 1648, his brother-in-law, Florin Périer, repeated the experiment on the Puy de Dôme mountain in central France and found that the column was shorter by three inches. This decrease in pressure was further demonstrated by carrying a half-full balloon up a mountain and watching it gradually expand, then contract upon descent. The original alt=A glass display case holds a mechanical device with a lever arm, plus two metal hemispheres attached to draw ropes In 1650, German scientist Otto von Guericke constructed the first vacuum pump: a device that would further refute the principle of horror vacui. He correctly noted that the atmosphere of the Earth surrounds the planet like a shell, with the density gradually declining with altitude.
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An interesting feature of many late 19th- and early 20th-century bolt-action rifles was the magazine cut-off, sometimes called a feed interrupter. This was a mechanical device that prevented the rifle from loading a round from the magazine, requiring the shooter to manually load each individual round as he fired, saving the rounds in the magazine for short periods of rapid fire when ordered to use them. Most military authorities that specified them assumed that their riflemen would waste ammunition indiscriminately if allowed to load from the magazine all the time. By the middle of World War I, most manufacturers deleted this feature to save costs and manufacturing time; it is also likely that battlefield experience had proven the futility of this philosophy.
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Wheeler remarked: > The experiment in the form an interferometer, discussed by Einstein and > Bohr, could theoretically be used to investigate whether a photon sometimes > sets off along a single path, always follows two paths but sometimes only > makes use of one, or whether something else would turn up. However, it was > easier to say, "We will, during random runs of the experiment, insert the > second half-silvered mirror just before the photon is timed to get there," > than it was to figure out a way to make such a rapid substitution. The speed > of light is just too fast to permit a mechanical device to do this job, at > least within the confines of a laboratory. Much ingenuity was needed to get > around this problem.
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Along the way however they become separated from the Warrior in Jet and Gold who was attempting to recover the mechanical device Hawkmoon had been given by the wraiths of Soryandum. The group travel on to the mountains of Carpathia, where they are attacked by Dark Empire forces and are forced to set their war-jaguars free in the battle. Arriving in the town of Zorvanemi they go undercover as a party of holy men, but after killing a number of Dark Empire troops in a tavern fight they decide to don their armour and masquerade as warriors of Granbretan under D'Averc's leadership. The group ride further into Shekia, and join a camp of Dark Empire forces massed outside the city of Bradichla.
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The fuel distributor is mounted atop a control vane through which all intake air must pass, and the system works by varying fuel volume supplied to the injectors based on the angle of a moving vane in the air flow meter, which in turn is determined by the volume of air passing the vane, and by the control pressure. The control pressure is regulated with a mechanical device called the control pressure regulator (CPR) or the warm-up regulator (WUR). Depending on the model, the CPR may be used to compensate for altitude, full load, and/or a cold engine. The injectors are simple spring-loaded check valves with nozzles; once fuel system pressure becomes high enough to overcome the counterspring, the injectors begin spraying.
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He went to Kimberley, South Africa, where, besides practising his profession, he engaged in diamond mining. Settling in New York City, he became editor of the Journal of Nervous and Mental Disease. From 1882 to 1885, he was adjunct professor of nervous diseases at the New York Post-Graduate Medical School, served as neurologist to the New York Infant Asylum, 1887–90, and was afterward professor of nervous diseases and electrotherapeutics at the New York Post-Graduate School. As an authority in electrotherapeutics he won wide recognition, and by his mechanical device for establishing the “static induced current” of electricity — the “Morton current” of the scientific world — supplied a means for producing the X-ray, a service of great practical value to medicine and surgery.
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Stamp vending machine in the London Heathrow Airport A stamp vending machine (SVM) is a mechanical, electrical or electro-mechanical device which can be used to automatically vend postage stamps to users in exchange for a pre- determined amount of money, normally in coin. Most SVMs were positioned in public places to provide a useful service to customers when other sources of postage stamps, such as Post Offices were closed. The term is often applied to the entire object as found attached to a pillar box or sited in a wall. The name Stamp Vending Machine only applies to the internal mechanism, the housing is described by the UK Post Office as a "case" and was supplied, installed and maintained separately.
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The mechanical device consists of a screw press modified for printing purposes which can produce 3,600 pages per workday, allowing the mass production of printed books on a proto-industrial scale. By the start of the 16th century, printing presses are operating in over 200 cities in a dozen European countries, producing more than twenty million volumes.Febvre, Lucien; Martin, Henri-Jean (1976): "The Coming of the Book: The Impact of Printing 1450–1800", London: New Left Books, quoted in: Anderson, Benedict: "Comunidades Imaginadas. Reflexiones sobre el origen y la difusión del nacionalismo", Fondo de cultura económica, Mexico 1993, , pp. 58f By 1600, their output had risen tenfold to an estimated 150 to 200 million copies, while Gutenberg book printing spread from Europe further afield.
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Plunger suspension on a 1953 BMW R51/3 A swingarm, or "swinging arm" (UK), originally known as a swing fork or pivoted fork, is a single or double sided mechanical device which attaches the rear wheel of a motorcycle to its body, allowing it to pivot vertically. The main component of the rear suspension of most modern motorbikes and ATVs, it holds the rear axle firmly, while pivoting to absorb bumps and suspension loads induced by the rider, acceleration, and breaking. Originally motorcycles had no rear suspension, as their frames were little more than stronger versions of the classic diamond frame of a bicycle. Many types of suspension were tried, including Indian's leaf spring suspended swingarm, and Matchless's cantilevered coiled-spring swingarm.
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Artificial lift refers to the use of artificial means to increase the flow of liquids, such as crude oil or water, from a production well. Generally this is achieved by the use of a mechanical device inside the well (known as pump or velocity string) or by decreasing the weight of the hydrostatic column by injecting gas into the liquid some distance down the well. A newer method called Continuous Belt Transportation (CBT) uses an oil absorbing belt to extract from marginal and idle wells. Artificial lift is needed in wells when there is insufficient pressure in the reservoir to lift the produced fluids to the surface, but often used in naturally flowing wells (which do not technically need it) to increase the flow rate above what would flow naturally.
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In this simple diagram of a drilling rig, #20 (in blue) is the rotary table. The kelly drive (#19) is inserted through the center of the rotary table and kelly bushings, and has free vertical (up & down) movement to allow downward force to be applied to the drill string, while the rotary table rotates it. (Note: Force is not actually applied from the top (as to push) but rather the weight is at the bottom of the drill string like a pendulum on a string.) A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the drill string to facilitate the process of drilling a borehole. Rotary speed is the number of times the rotary table makes one full revolution in one minute (rpm).
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In 1997, Ted Pritchard made a submission to the Inquiry into Urban Air Pollution in Australia, again promoting the low emissions possible from modern steam power plants. From 1999 to 2002 he maintained a Pritchard Power website, on which he began to publish new articles about steam power. Now in his late 60s, Ted Pritchard declared that he would "draw one last engine before I die", and after about 6,000 hours over five years he formulated, designed and drew in pencil and ink every last nut, bolt and screw of a new Pritchard engine. This engine, known as the S5000 (steam five thousand watts), was designed to burn low-grade fuel and produce electricity, but is also be able to provide steam and heat, distil water or drive any rotary mechanical device using a belt.
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The fin-stack acts as a fluid- to-fluid heat exchanger transferring thermal energy from the working fluid within the heatpipe(s) to ambient air at dead-state condition. A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature. In computers, heat sinks are used to cool CPUs, GPUs, and some chipsets and RAM modules. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.
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This article mainly refers to the mechanical device in the context of a brake power booster or vehicular braking-system assist. The term "vacuum servo" is actually a generic term for any device which uses a vacuum to amplify/boost the mechanical effort of a device by use of a vacuum in an assisting chamber, either attached to the input or output, or placed between the input and output. In a Vacuum brake servo, the unit is placed between the brake pedal and the hydraulic master cylinder, using stored vacuum to amplify the drivers pedal efforts, giving a greater braking force. The term "vacuum servo" can sometimes be mis-translated in vehicle engineering terms, to "vacuum operated valve" whereby a device is controlled, either switched or proportionally, by the use of vacuum.
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The BAC-111 cockpit includes a stick shaker/pusher following its 1963 crash A stick shaker is a mechanical device designed to rapidly and noisily vibrate the control yoke (the "stick") of an aircraft, warning the flight crew that an imminent aerodynamic stall has been detected. It is typically present on the majority of large civil jet aircraft, as well as most large military planes. The stick shaker comprises a key component of an aircraft's stall protection system. Several accidents, such as the 1963 BAC One-Eleven test crash and American Airlines Flight 191, were attributable to aerodynamic stalls and motivated aviation regulatory bodies to establish requirements for certain aircraft to be outfitted with stall protection measures, such as the stick shaker and stick pusher, to reduce such occurrences.
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AAE went out of business in December 2010. Their basic design was self- contained so it could be adapted to extreme environments such as space, polar and underwater environments. Their design was for a nitrogen coolant passing directly though a conventional low-pressure gas turbine, and due to the rapid ability of the turbine to change speeds, it can be used in applications where instead of the turbine's output being converted to electricity, the turbine itself could directly drive a mechanical device, for instance, a propeller aboard a ship. Like all high temperature designs, the AAE engine would have been inherently safe, as the engine naturally shuts down due to Doppler broadening, stopping heat generation if the fuel in the engine gets too hot in the event of a loss of coolant or a loss of coolant flow.
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Before The novel begins in a small Welsh town in 2013, where Basil Grey, a mechanical engineer and a member of the United Nation's run Institute, has just witnessed his lover, an alien named Kalp, being shot to death in their living room. Basil's coworkers, led by Agent Aitken, shot him for a traitor and a spy, and drag Basil out of the house and to the Institute's interrogation rooms. He is joined by his wife, Gwen Pierson, and as she tries to convince him that Kalp had betrayed them, Basil has a revelation about a small mechanical device he had seen in the Institutes workrooms, which he has nicknamed a "Flasher". Part I: Back Narrated by Evvie Pierson, the first part of the book opens on a fall day in 1983 on the Pierson Family farm.
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A mechanical device that he had reportedly spent over twenty-five years developing, Faber's "Fabulous Talking Machine" was constructed of several different mechanisms and instruments: a piano, a bellows, and a mechanical replica of the human throat and vocal organs. By pressing the keys on the keyboard, a human operator produced sounds that inflated the bellows, caused the mechanical mouth to open, the mechanical tongue to be lifted, and the mechanical jaws to move. Able to produce sentences in English, French, and German, the Euphonia was reported by The London Journal to speak all three with a German accent, a fact attributed to the native language (German) of the inventor. It was P.T. Barnaum who renamed the talking machine "Euphonia", which was a striking, if probably coincidental, token of its ideological resemblance to Hector Berlioz' utopia, which bore the same name.
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The album began as a demonstration record for the 'Gizmotron', or Gizmo. This was an electric guitar effect device that Godley and Creme had invented a few years earlier as a means of providing orchestral textures, because the band at that stage could not afford to hire orchestral players to augment their recordings. The Gizmo was an electro-mechanical device which was clamped over the bridge of an electric guitar; it contained six small motor-driven toothed plastic wheels that, when pushed into contact with the strings, created a 'bowing' effect, producing notes and chords with endless sustain that, with additional audio effects treatment and overdubbing, could emulate violins, violas, cellos and basses. Godley and Creme had begun work on songs for the Gizmo before leaving 10cc, but quit the band when they realised the songs could not comfortably appear on 10cc albums.
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The Ohmer fare register was, in various models, a mechanical device for registering and recording the fares of passengers on streetcars, buses and taxis in the early 20th century. It was invented and improved by members and employees of the Ohmer family of Dayton, Ohio, especially John F. Ohmer who founded the Ohmer Fare Register Company in 1898, and his brother Wilfred I. Ohmer of the Recording and Computing Machines Company of Dayton, Ohio. This latter company employed up to 9,000 people at one time and was a major manufacturer of precision equipment during World War I.Oakwood notes It was subsequently renamed the Ohmer Corporation and in 1949, acquired by Rockwell Manufacturing Company. Fare registers on city buses were replaced by fare boxes by the middle of the 20th century, and today by ticket or card machines.
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However, the high accuracy of the bematists's measurements rather indicates the use of a mechanical device. For example, the section between the cities Hecatompylos and Alexandria Areion, which later became a part of the silk road, was given by Alexander's bematists as 529 English miles long, that is with a deviation of 0.2% from the actual distance (531 English miles). From the nine surviving bematists' measurements in Pliny's Naturalis Historia eight show a deviation of less than 5% from the actual distance, three of them being within 1%. Since these minor discrepancies can be adequately explained by slight changes in the tracks of roads during the last 2300 years, the overall accuracy of the measurements implies that the bematists already must have used a sophisticated device for measuring distances, although there is no direct mention of such a device.
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Where the blast was deflected so as to pass overhead by several metres, it left the topsoil and the seeds it contained, permitting faster revegetation with scrub and herbaceous plants, and later with saplings. Trees in the path of such higher-level blasts were broken off wholesale at various heights, whereas nearby stands in more sheltered positions recovered comparatively rapidly without conspicuous long-term harm. # Seared zone, also called the "standing dead" zone, the outermost fringe of the impacted area, a zone in which trees remained standing but were singed brown by the hot gases of the blast. alt=Black and white photograph; a man squints into the telescopic eyepiece of a large mechanical device By the time this pyroclastic flow hit its first human victims, it was still as hot as and filled with suffocating gas and flying debris.
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Essentially, a prize bingo installation is a set of linked slot machines. According to the Gambling Commission regulations, prize bingo sessions should have the maximum stake of £1 and a prize worth no more than £70 - per game, no more than £500 of prizes per game and no more than £500 in stakes per game. Early forms of prize bingo had a 'ball machine' - this mixed up colour-coded balls with each number on and the machine would release numbers when a button was pressed, these would be announced by the caller and put aside, being returned to the 'pool' when the game had finished, usually via some kind of mechanical device. However, in the last few decades, these installations (if they are still open) have been converted to electronic operation, with most systems now being controlled by some kind of computer.
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Gutenberg press at the International Printing Museum, Carson, California A printing press is a mechanical device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink. It marked a dramatic improvement on earlier printing methods in which the cloth, paper or other medium was brushed or rubbed repeatedly to achieve the transfer of ink, and accelerated the process. Typically used for texts, the invention and global spread of the printing press was one of the most influential events in the second millennium.For example, in 1999, the A&E; Network ranked Gutenberg no. 1 on their "People of the Millennium" countdown. In 1997, Time–Life magazine picked Gutenberg's invention as the most important of the second millennium ; the same did four prominent US journalists in their 1998 resume 1,000 Years, 1,000 People: Ranking The Men and Women Who Shaped The Millennium .
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The permitted cart will be operated in a mature and safe manner at all times and in compliance with any and all posted regulations and at a speed not to exceed 15 miles per hour. The permitted cart will be operated with full respect of other users and will operate at all times on the right side of the trail, except when passing, and shall not pass other users who are being assisted by a mechanical device unless invited to do so. The permitted cart shall yield the right of way to all other users of the trail who are assisted by mechanical devices ( i.e. bikes, roller blades, wheelchairs, maintenance vehicles, etc.) approaching from either the front or rear, by pulling to the right, off the asphalt surface where reasonable possible, and at least 150 feet in advance, and coming to a complete stop.
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See also which also gives these definitions for "effective" – the first ["producing a decided, decisive, or desired effect"] as the definition for sense "1a" of the word "effective", and the second ["capable of producing a result"] as part of the "Synonym Discussion of EFFECTIVE" there, (in the introductory part, where it summarizes the similarities between the meanings of the words "effective", "effectual", "efficient", and "efficacious"). In the following, the words "effectively calculable" will mean "produced by any intuitively 'effective' means whatsoever" and "effectively computable" will mean "produced by a Turing-machine or equivalent mechanical device". Turing's "definitions" given in a footnote in his 1938 Ph.D. thesis Systems of Logic Based on Ordinals, supervised by Church, are virtually the same: > We shall use the expression "computable function" to mean a function > calculable by a machine, and let "effectively calculable" refer to the > intuitive idea without particular identification with any one of these > definitions. The thesis can be stated as: Every effectively calculable function is a computable function.
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A wartime picture of a Bletchley Park Bombe The bombe () is an electro- mechanical device used by the British cryptologists to help decipher German Enigma-machine-encrypted secret messages during World War II. The US Navy and US Army later produced their own machines to the same functional specification, albeit engineered differently both from each other and from Polish and British bombes. The British bombe was developed from a device known as the "bomba" (), which had been designed in Poland at the Biuro Szyfrów (Cipher Bureau) by cryptologist Marian Rejewski, who had been breaking German Enigma messages for the previous seven years, using it and earlier machines. The initial design of the British bombe was produced in 1939 at the UK Government Code and Cypher School (GC&CS;) at Bletchley Park by Alan Turing, with an important refinement devised in 1940 by Gordon Welchman. The engineering design and construction was the work of Harold Keen of the British Tabulating Machine Company.
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Although Applicants argue that the method claims are tied to the use of a shared marketing force, a marketing force is not a machine or apparatus," because it is not a "mechanical device or combination of mechanical powers and devices to perform some function and produce a certain effect or result.'" Furthermore, the method does not cause a transformation of an article into a different state or thing: > At best it can be said that Applicants' methods are directed to organizing > business or legal relationships in the structuring of a sales force (or > marketing company). But as this court stated in Bilski, "[p]urported > transformations or manipulations simply of public or private legal > obligations or relationships, business risks, or other such abstractions > cannot meet the test because they are not physical objects or substances, > and they are not representative of physical objects or substances. Therefore, Ferguson's method does not satisfy the machine-or-transformation test.
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A plotting board was a mechanical device used by the U.S. Army Coast Artillery Corps as part of their fire control system to track the observed course of a target (typically a moving ship), project its future position, and derive the uncorrected data on azimuth (or direction) and range needed to direct the fire of the guns of a battery to hit that target. Plotting boards of this sort were first employed by the Coast Artillery around 1905, and were the primary means of calculating firing data until WW2. Towards the end of WW2 these boards were largely replaced by radar and electro-mechanical gun data computers, and were relegated to a back-up role. Although several different types of plotting boards were used by the Coast Artillery over the years, the example described here is the Whistler-Hearn Plotting Board, Model of 1904 which was widely employed by the Coast Artillery between about 1905 and 1925.
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When Esmé accidentally harms one of the V.F.D. crows in violation of the Village of Fowl Devotees' #1 rule of not harming crows as well as the use of a mechanical device like a harpoon gun, she and Count Olaf (acting as Detective Dupin) are forced to flee the villagers. In The Hostile Hospital, Esmé poses as a doctor is sent to destroy the Snicket File, one of the last remaining pieces of evidence that could send Count Olaf to jail. The file is kept in the Library of Records at the hospital, where the Baudelaires have been working in the hope of discovering more about V.F.D. Esmé uses her sharp stilettos (the heels being real stiletto knives) to attempt to harm the orphans. Esmé is unable to claim the file as not only had the authorities had removed it beforehand, but also Klaus has retrieved the thirteenth page and hidden it in his pocket.
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A hydraulic cantilever tail lift on the back of a truck Four stages of deployment on an ambulance tail lift Control for a tail lift A tail lift (term used in the UK, also called a "liftgate" in North America) is a mechanical device permanently installed on the rear of a work truck, van, or lorry, and is designed to facilitate the materials handling of goods from ground level or a loading dock to the level of the vehicle bed, or vice versa. The majority of tail lifts are hydraulic or pneumatic in operation, although they can be mechanical, and are controlled by an operator using an electric relay switch. Using a tail lift can make it unnecessary to use machinery such as a forklift truck to load heavy items on to a vehicle. A tail lift can also bridge the difference in height between a loading dock and the vehicle load bed.
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Mario Torelli, Typology and structure of Roman Historical reliefs After the funeral of Caesar and the building of the temple, this tribunal was then moved in front of the Temple of Caesar, probably to the location of the so-called Rostra Diocletiani. Caesar's corpse was carried to the Roman Forum on an ivory couch and set up on the Rostra in a gilded shrine modelled on the Temple of Venus Genetrix, the goddess from whom the family of the Iulii claimed to have originated. Mark Antony delivered his famous speech followed by a public reading of Caesar's will, while a mechanical device, positioned above the bier itself, rotated a wax image of Caesar so that people were able to clearly see the 23 wounds in all parts of the body and on the face. The crowd, moved by the words of Mark Antony, Caesar's will, and the sight of the wax image, attempted but failed to carry the corpse to the Capitol to rest among the gods.
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Structure of a scrollerwheel A scrollerwheel is a mechanical device composed of a number of rollers (four or more) and connective bands under tension, which wrap around and weave between the rollers forming a self-supporting cluster possessing a central roller. The cluster of rollers is bound by the connective bands in such a way that the static friction between the rollers and bands prevent the rollers from slipping as they roll and orbit the central roller.Canadians Reinvent the WheelBusiness Week August 14, 1995 Scrollerwheels are related in operational principle to rolamite linear bearings (developed at Sandia National Labs in the late 1960s), and like them, they display only rolling friction, and not the kinetic friction inherent in most mechanical bearings. The rollers can have a cross section in a variety of shapes other than circular, such as: ovals (which with a single oval roller as the central roller, or one of the outer rollers, results in a cammed motion), various varieties of superellipses and Reuleaux polygons.
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The Supreme Court disagreed with the lower courts' conclusion that the extension of the counter constituted an invention because (1) the extension was not mentioned in the claim, (2) an invention cannot be found in a mere elongation of a merchant's counter, and (3) the Turnham patent overclaimed the invention by including old elements, unless together with its other old elements, the extension made up a new patentable combination. The Court explained that the key to the patentability of a mechanical device that brings old factors into cooperation is the presence or lack of invention: "[O]nly when the whole in some way exceeds the sum of its parts is the accumulation of old devices patentable." The Court concluded that the invention claimed by the Turnham patent lacked any "unusual or surprising consequences" from the combination of old elements. The Court added that patents are intended to add to the sum of useful knowledge, and they cannot be sustained when their effect is to subtract from resources freely available.
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Jungle Lord, a 1981 pinball game The backglass is a vertical graphic panel mounted on the front of the backbox, which is the upright box at the top back of the machine. The backglass contains the name of the machine and eye-catching graphics; in games up to the 1980s the artwork would often portray large-breasted women in skimpy clothing. The score displays (lights, mechanical wheels, an LED display, or a dot-matrix display depending on the era) would be on the backglass, and sometimes also a mechanical device tied to game play, for example, elevator doors that opened on an image or a woman swatting a cat with a broom such as on Williams' 1989 "Bad Cats". For older games, the backglass image is screen printed in layers on the reverse side of a piece of glass; in more recent games, the image is imprinted into a translucent piece of plastic- like material called a translite which is mounted behind a piece of glass and which is easily removable.
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Kay McNulty, Alyse Snyder, and Sis Stump operate the differential analyser in the basement of the Moore School of Electrical Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, c. 1942–1945. NACA Lewis Flight Propulsion Laboratory, 1951 Research on solutions for differential equations using mechanical devices, discounting planimeters, started at least as early as 1836, when the French physicist Gaspard-Gustave Coriolis designed a mechanical device to integrate differential equations of the first order. The first description of a device which could integrate differential equations of any order was published in 1876 by James Thomson, who was born in Belfast in 1822, but lived in Scotland from the age of 10. Reprinted in Though Thomson called his device an "integrating machine", it is his description of the device, together with the additional publication in 1876 of two further descriptions by his younger brother, Lord Kelvin, which represents the invention of the differential analyser.. Lord Kelvin's descriptions: One of the earliest practical uses of Thomson's concepts was a tide-predicting machine built by Kelvin starting in 1872-3.
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Image of BMW S65 from the E92 BMW M3 showing eight individual throttle bodies Triple butterfly throttle body atop a fuel injection plenum, on a supercharged drag racing car A throttle body is somewhat analogous to the carburetor in a non-injected engine, although it is important to remember that a throttle body is not the same thing as a throttle, and that carbureted engines have throttles as well. A throttle body simply supplies a convenient place to mount a throttle in the absence of a carburetor venturi. Carburetors are an older technology, which mechanically modulate the amount of air flow (with an internal throttle plate) and combine air and fuel together (venturi). Cars with fuel injection don't need a mechanical device to meter the fuel flow, since that duty is taken over by injectors in the intake pathways (for multipoint fuel injection systems) or cylinders (for direct injection systems) coupled with electronic sensors and computers which precisely calculate how long should a certain injector stay open and therefore how much fuel should be injected by each injection pulse.
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Having been met with skepticism after his first presentation of appendectomy, he gathered evidence from 250 cases and presented his opinions again as an authority on the subject. A number of procedures and devices were named after Murphy, including Murphy’s button (a mechanical device used for intestinal anastomosis), Murphy’s punch (a punch tenderness at the costo-vertebral angle in cases of perinephric abscess), Murphy's sign (a sign of inflammation of the gallbladder), Murphy’s test (a test for deep-seated tenderness and muscular rigidity in cases of perinephric abscess), Murphy drip for administration of fluids by proctoclysis in patients with peritonitis, and Murphy-Lane bone skid (a common commercial steel instrument used for femoral head procedures). Murphy developed his eponymous anastomotic button for a sutureless anastomosis of the gallbladder to the duodenum (his preferred treatment for acute cholecystitis), but it was equally suitable for intestinal anastomoses. He developed it in the experimental animal laboratory in a barn behind his house and first used it less than a week after developing it on a dog.
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After the blackout, Janis confronts the owner about wanting to quit, horrified she had helped in something so catastrophic. The owner, however, tells her she can’t and will have to continue her job. In the present, Mark has begun deciphering one of the pictures found on Frost: a large blueprint of an ancient mechanical device. Janis takes the blueprint to an antiquities professor to figure out what it means. When Janis shows a copy of the blueprint to the pet store lady, she orders Janis to take back the blueprint and destroy the other copy on Mark’s mosaic board. Janis successfully infiltrates the professor’s office and takes the blueprint, and also wipes his computer’s hard drive. When she sneaks into Mark’s office to take the copy, Mark catches her, and Janis hurriedly explains she needs it to replace the one that the professor had lost. Mark tells her he’ll make a copy in the morning; the next day, the professor tells them his findings, as he had already taken pictures of the blueprints: he uses a computer to construct a model of the blueprints, which depict a clock-like device with many gears.
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