The first Twitter essay I wrote (alas, rudimentary and unthreaded) was about racism and American conservatism.
|
|
So for now, the president will have to keep posting unthreaded tweetstorms about world leaders, natural disasters, and TV ratings.
|
|
There, visitors feel the weight of the shroud hanging over them, and take in Breen's pastel wall drawing, made from stencils created by an unthreaded sewing machine.
|
|
The cords call attention to gravity and its defiance: the unthreaded bedspread seems to cascade down, a few inches in front of the wall, while the snake rises up.
|
|
The most noticeable difference is that Microsoft Teams organizes conversations into threads, grouping messages on the same topic to make conversations easier to follow than they are in Slack's unthreaded message streams.
|
|
In the lead so far is Slack, an unthreaded, sometimes chaotic series of chat rooms which my employer, Vox Media, uses, and which claims to be the fastest-growing business application on the market.
|
|
A moused shackle There are two main types of clevis pins: threaded and unthreaded. Unthreaded clevis pins have a domed head at one end and a cross-hole at the other end. A cotter pin (USA usage) or split pin is used to keep the clevis pin in place. Threaded clevis pins have a partially threaded shank on one end and a formed head on the other.
|
|
Old USS and SAE standards defined cap screws as fasteners with shanks that were threaded to the head and bolts as fasteners with shanks that were partially unthreaded. The relationship of this rule to the idea that a bolt by definition takes a nut is clear (because the unthreaded section of the shank, which is called the grip, was expected to pass through the substrate without threading into it). This is now an obsolete distinction, although large bolts still often have unthreaded sections of shank. Although there is no reason to consider this definition obsolete, because it is far from clear that "a bolt by definition takes a nut".
|
|
In automobiles, dowels are used when precise mating alignment is required, such as in differential gear casings, engines, and transmissions. Bolts in a bolted joint often have an important function as a dowel, resisting shear forces. For this reason, many bolts have a plain unthreaded section to their shank. This gives a closer fit to the hole and also avoids some problems with fretting wear when a screw thread bears against an unthreaded component.
|
|
One of many brands of water thief (a synthetic rubber fitting that attaches to an unthreaded faucet on one end and a common garden hose on the other) commonly available The term "water thief" refers to three devices – one ancient and two modern. # A water thief is a synthetic rubber fitting that attaches to an unthreaded faucet on one end and a common garden hose on the other. It is commonly used to fill fresh water tanks in recreational vehicles when a threaded hose bib is not available. # A water thief allows firefighters to break down one larger line into several smaller ones, each with independent control of water flow at the valve.
|
|
In many lathe tailstocks, the tool is removed by fully withdrawing the quill into the tailstock, which brings the tool up against the end of the leadscrew or an internal stud, separating the taper and releasing the tool. Where the tool is retained by a drawbar, as in some mill spindles, the drawbar is partially unthreaded with a wrench and then tapped with a hammer, which separates the taper, at which point the tool can be further unthreaded and removed. Some mill spindles have a captive drawbar which ejects the tool when actively unscrewed past the loose stage; these do not require tapping. For simple sockets with open access to the back end, a drift punch is inserted axially from behind and the tool tapped out.
|
|
The valve threads for Presta valves follow the ISO 4570 standard. The external threads at the tip of both "threaded" and "unthreaded" Presta valves are 5V2, which measures out to 5.2×1.058 mm, the same thread size as the tip of a Dunlop valve. The external threads on the main body of "threaded" Presta valves are 6V1, which measures 6×0.80.
|
|
Then the bailer is returned to surface where it is taken apart, the solids are emptied, and it is cleaned and serviced with new o-ring seals. Care must be taken when disassembling at surface as the tool is potentially charged with the downhole pressure (possibly many tens of thousands of kpa) and may 'blow apart' when being unthreaded if not bled off first.
|
|
This is the part number for a Swichcraft connector used with high impedance microphones up through about 1980. It was intended for coax style cable up to outside diameter. Attachment is made with a 5/8-27 threaded ring that can be unthreaded over the body of the connector body allowing the female connector to become a male connector. Wire connection was via solder.
|
|
Like other non-metallic conduits, a bonding conductor may be required for grounding. Joints are epoxy-glued, which requires some installation labor and time for joints to set. RTRC conduit may not be bent in the field and appropriate fittings must be used to change directions, nor is RTRC conduit approved to support luminaires. Rigid nonmetallic conduit (RNC) is a non-metallic unthreaded smooth-walled tubing.
|
|
Slab base weld nuts Stud welding is a technique similar to flash welding where a fastener or specially formed nut is welded onto another metal part, typically a base metal or substrate. The fastener can take different forms, but typically fall under threaded, unthreaded, or tapped. The bolts may be automatically fed into the stud welder. Weld nuts generally have a flange with small nubs that melt to form the weld.
|
|
The system comprises unthreaded cast iron or aluminium structural tubing and slip-on structural pipe fittings. The galvanized malleable fittings provide resistance to corrosion and are secured to the tubes using set screws by use of a hex key. Some cutting or bending of the tubes may be required while installing the system, according to site- specific circumstances. Skilled labourers such as welders are not required, but the material costs are higher for the Kee Klamp system.
|
|
An earlier method was the use of a wedge to block the rear of the gun. The amount of rotation required to achieve full closure depends on the number of unthreaded sectors. The minimum balanced arrangement has two sectors of 90°, and requires 1/4 turn to lock. three sectors of 60° requires 1/6 turn to lock, and the typical arrangement on a diving helmet, four sectors of 45°, requires 1/8 turn to lock.
|
|
Such implants are inserted when the space between the spinal discs is distracted, such that the implant, when threaded, is compressed like a screw. Unthreaded implants, such as the Harms and Pyramesh cages have teeth along both surfaces that bite into the end plates. Technology: expansion vs. static devices Expandable implant devices are at the forefront of technology in this field, with cages that expand in place for optimal end-plate-to-endplate fit and correction of lordosis.
|
|
Riveting is one of the most ancient metalwork joining processes. Its use declined markedly during the second half of the 20th century, but it still retains important uses in industry and construction, and in artisan crafts such as jewellery, medieval armouring and metal couture in the early 21st century. The earlier use of rivets is being superseded by improvements in welding and component fabrication techniques. A rivet is essentially a two-headed and unthreaded bolt which holds two other pieces of metal together.
|
|
Steyr AUG importation into the U.S. began in the 1980s as the AUG/SA (SA denoting semiautomatic). President George H.W. Bush banned the AUG via an executive order under the 1989 Assault Weapon Import ban. Six years into the ban, AUG buyers gained a reprieve as cosmetic changes to the carbine’s design allowed importation once again. Changes included the pistol grip being changed into a thumbhole stock, and the barrel left unthreaded to prevent attachment of flash suppressors and silencers.
|
|
Tapping large numbers of holes that may never be used is expensive; nonetheless tapped-hole racks are still in use, generally for hardware that rarely changes. Examples include telephone exchanges, network cabling panels, broadcast studios and some government and military applications. The tapped- hole rack was first replaced by clearance-hole (Round Hole, Round Unthreaded Holes, and Versa Rail) racks. The holes are large enough to permit a bolt to be freely inserted through without binding, and bolts are fastened in place using cage nuts.
|
|
Adult or multi-piece cranks have a 9/16 inch hole with 20 TPI (a combination that appears to be unique to this application). One-piece or children's cranks use a 1/2 inch hole. Some cranks on children's bikes have more than one pedal hole so that the pedal can be moved to accommodate growth. The right-side (usually the chain side) hole is right-hand threaded, and the left-side hole is left-hand (reverse) threaded to help prevent it from becoming unthreaded by an effect called precession.
|
|
The POMZ-2M has a threaded fuze well, while the earlier POMZ-2 was unthreaded and the fuze and igniter would sometimes fall out if the mine was disturbed. The POMZ-2 has 6 rows of square preformed fragments, while the POMZ-2M has 5 rows and is slightly shorter. The crude fragmentation jacket produces an uneven fragmentation effect. The effective radius of the mine is often quoted as four meters @ 360 degrees, but a small number of large fragments may be lethal at ranges far exceeding that.
|
|
The bottom bracket shell is a short and large diameter tube, relative to the other tubes in the frame, that runs side to side and holds the bottom bracket. It is usually threaded, often left-hand threaded on the right (drive) side of the bike to prevent loosening by fretting induced precession, and right-hand threaded on the left (non-drive) side. There are many variations, such as an eccentric bottom bracket, which allows for adjustment in tension of the bicycle's chain. It is typically larger, unthreaded, and sometimes split.
|
|
A recent photo of an open wire telegraph pole route with porcelain insulators. Quidenham, Norfolk, United Kingdom The first electrical systems to make use of insulators were telegraph lines; direct attachment of wires to wooden poles was found to give very poor results, especially during damp weather. The first glass insulators used in large quantities had an unthreaded pinhole. These pieces of glass were positioned on a tapered wooden pin, vertically extending upwards from the pole's crossarm (commonly only two insulators to a pole and maybe one on top of the pole itself).
|
|
A clevis used to attach a bar and chain A clevis and clevis pin, held in place by a split pin A clevis fastener is a three-piece fastener system consisting of a clevis, clevis pin, and tang. The clevis is a U-shaped piece that has holes at the end of the prongs to accept the clevis pin. The clevis pin is similar to a bolt, but is either partially threaded or is unthreaded with a cross-hole for a split pin. The tang is a piece that fits in the space within the clevis and is held in place by the clevis pin.
|
|
The appropriate pilot hole will prevent binding while providing sufficient friction to keep the screw from loosening. For common wood screws, the pilot providing clearance for the core of the screw may be followed by a larger bit to shallower depth to provide clearance for the larger, unthreaded shank of the screw. For standard wood screws, special pilot drill bits are manufactured to produce the correct hole profile in a single operation, rather than needing several different drill bit sizes and depths. Screws driven into concrete must have the appropriate size pilot hole, or they will either break on insertion, strip the hole, or not provide the rated holding force.
|
|
Nipple In plumbing and piping, a nipple is a fitting, consisting of a short piece of pipe, usually provided with a male pipe thread at each end, for connecting two other fittings. The length of the nipple is usually specified by the overall length with thread. It may have a hexagonal section in the center for a wrench to grasp (sometimes referred to as a "hex nipple"), or it may simply be made from a short piece of pipe (sometimes referred to as a "barrel nipple" or "pipe nipple"). A "close nipple" has no unthreaded area; when screwed tightly between two female fittings, very little of the nipple remains exposed.
|
|
Examples of set screws A set screw, also known as a blind screw or a grub screw, is a type of screw generally used to secure an object within or against another object, usually without using a nut (see bolts compared with screws). The most common examples are securing a pulley or gear to a shaft. Set screws are usually headless, meaning that the screw is fully threaded and has no head projecting past the thread's major diameter. If a set screw does have a head, the thread will extend all the way to the head (whereas a bolt might have an unthreaded shank between the head and thread).
|
|
A moused shackle Mousing (pronounced ) is the application of a molly or safety wire, called mousing wire in this use, to secure a threaded clevis pin to a shackle. This is done by passing a couple of turns of mousing wire through the reach-hole provided for this purpose in the unthreaded end of the clevis pin and around the body of the shackle's hoop. Alternatively, some threaded shackles are provided with a hole through the threaded end of the pin beyond where it emerges from the threaded hole. A cotter pin or a couple of loops of mousing wire through this hole serves the same purpose and secures the shackle in a closed position.
|
|
Taper-Lock bushings are keyed hub fittings which provide three threaded Dutch keyways and two setscrews as Dutch keys, in addition to the rectangular keyway. The Dutch keyways are threaded only on the alternate hub side or shaft side, with a thread clearance hole form on the opposite side. By simply driving setscrews into selected holes, the hub mechanism conveniently operates to rigidly lock or definitely release from the shaft, without hammering or hub-pulling. Quick- disconnect (QD) bushings work similarly, but place a circular pattern of three unthreaded and three fully threaded holes further out from the shaft axis on a bushing flange, instead of across the bushing-to-hub interface.
|
|
5- Must have an occupation or a source of living (must not be homeless or have no source of income). 6- application should be submitted to the minister by the criminal investigation. Usually hunting shotguns are the most common licensed weapons in Kuwait also the easiest to get it licensed, hunting and sniper rifles are more difficult to be licensed but firearms chambered for .22 LR are more commonly licensed, whether with threaded or unthreaded barrel Automatic rifles or machine guns are not allowed to be licensed in Kuwait but many houses do have such illegal weapons that are either taken by the Kuwaiti resistance of the Iraqi invasion in 1990 or taken during the end of Gulf War when the Iraqi army retreated.
|
|
The three taps in the image illustrate the basic types commonly used by most machinists: ;Bottoming tap or plug tap: The tap illustrated in the top of the image has a continuous cutting edge with almost no taper — between 1 and 1.5 threads of taper is typical. This feature enables a bottoming tap to cut threads to the bottom of a blind hole. A bottoming tap is usually used to cut threads in a hole that has already been partially threaded using one of the more tapered types of tap; the tapered end ("tap chamfer") of a bottoming tap is too short to successfully start into an unthreaded hole. In the US, they are commonly known as bottoming taps, but in Australia and Britain they are also known as plug taps.
|
|
This was further complicated by the need to screw and unscrew the breech as quickly as possible; this was met by the "interrupted thread" breech block, where the block circumference was alternately threaded and left unthreaded at a slightly smaller diameter to allow the whole block to be fully inserted and rotated a fraction to lock it. Hence if the block circumference was divided into two sets of threads and gaps, the block only needed to be rotated ¼ turn to lock it instead of several turns. The tradeoff was that only ½ the block's circumference was threaded, reducing the security accordingly. The other possibility of sealing the breech was to enclose the propellant charge in a metal cartridge case which expanded on firing and hence sealed the breech, leaving the breech-block merely needing to lock the cartridge case in place.
|
|