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26-584: M1937 may refer to: M1937 Revolver M1937 howitzer-gun M1937 anti-tank gun M1937 helmet Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title M1937 . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=M1937&oldid=1251858161 " Category : Disambiguation pages Hidden categories: Short description

52-450: A double-action revolver with a swing-out or top-break cylinder ). For rimmed cases, the protruded rim serves as the grabbing point from which the extractor works. For rimless cases, the groove at the base serves as the grabbing point from which the extractor works. Not all single-shot firearms have extractors, though many do. Break-action shotguns , double rifles , and combination guns typically have an extractor that pushes out

78-502: A device such as a cleaning rod or pencil, as the cylinder extractor and ejector would pass over the edge of the rimless cartridges. Firearms developer and writer Elmer Keith considered the Colt model "rough finished" and generally not as well made as the Smith and Wesson. From 1917 to 1919, Colt and Smith & Wesson produced 151,700 and 153,300 M1917s in total (respectively) under contract with

104-405: A fired, empty cartridge case from the weapon. The extractor moves with the bolt to pull the cartridge case rearwards out of the chamber, and at some point, the ejector eccentrically exerts a frontal push (from the case's frame of reference ), which torques and "flicks" the case out of a side opening on the receiver known as the ejector port . Another example of extractor exists in the form of

130-468: A pivoting lever attached to the bolt head that lacks a separate rammer, but works by ejecting first the rear of the cartridge to exit through the ejection port instead of the case head/bottleneck. This type of component does the job of both extractor/rammer but is mostly found on firearms using simple blowback, lever/tilting bolt locking/delay, etc. rather than rotating bolts. Some very early blowback pistols used ammunition with no rim or extractor groove on

156-587: A version of their .45 Long Colt caliber New Service model, designated the M1909, to replace their .38 Long Colt caliber M1892 revolvers that had demonstrated inadequate stopping power during the Philippine–American War . The Colt M1917 Revolver was essentially the same as the M1909, but with a cylinder bored to take the .45 ACP cartridge and the half-moon clips to hold the rimless cartridges in position. In early Colt production revolvers, attempting to fire

182-568: Is different from Wikidata All article disambiguation pages All disambiguation pages M1937 Revolver The M1917 Revolvers were six-shot, .45 ACP , large frame double action revolvers adopted by the United States Military in 1917, to supplement the standard M1911 pistol during World War I . There were two variations of the M1917, one made by Colt and the other by Smith & Wesson . They used moon-clips to hold

208-575: The Beretta Bobcat , Beretta Model 21A, and clones of the Beretta designs such as the Taurus PT22 that are successful. These modern pistols typically have flip-up barrels, to permit easy loading without necessarily cycling a slide against a strong recoil spring, making these pistols suitable for use by people with minimal hand strength. The trade off made is that in the event of a cartridge primer malfunction,

234-726: The War Department for use by the American Expeditionary Force . The revolver saw prolific use by the " Doughboys " during World War I, with nearly two-thirds as many M1917s being issued and produced during the war as M1911s were. The military service of the M1917 did not end with the First World War. In November of 1940, the Army Ordnance Corps recorded a total of 96,530 Colt and 91,590 S&W M1917s still in reserve. After being parkerized and refurbished, most of

260-426: The .45 ACP without the half-moon clips was unreliable at best, as the cartridge could slip forward into the cylinder and away from the firing pin. Later production Colt M1917 revolvers had headspacing machined into the cylinder chambers, just as the Smith & Wesson M1917 revolvers had from the start. Newer production Colts could be fired without the half-moon clips, but the empty cartridge cases had to be ejected with

286-454: The .45 Auto Rim. This rimmed version of the .45 ACP allowed both versions of the Model 1917 revolver to fire reliably without the clips. In the late 1950s and 1960s, Colt and Smith & Wesson 1917s were available through mail order companies at bargain prices. In 1937, Brazil ordered 25,000 Smith & Wesson M1917s for its military, where they are no longer in service. They can be identified by

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312-507: The Colt M1917 in that the S&;W cylinder has a shoulder machined into it to permit rimless .45 ACP cartridges to headspace on the case mouth (as they do in automatics). The S&W M1917 can thus be used without half-moon clips, though empty .45 ACP cases, being rimless, must be poked out manually through the cylinder face as the extractor star cannot engage them. Colt had previously produced

338-464: The U.S. Army, but even with the additional production there was a shortage of sidearms to issue. The interim solution was to ask Colt and Smith & Wesson, the two major American producers of revolvers at the time, to adapt their heavy-frame civilian revolvers to the standard .45 ACP pistol cartridge . Both companies' revolvers utilized half-moon clips to extract the rimless .45 ACP cartridges. Daniel B. Wesson 's son Joseph Wesson invented and patented

364-445: The U.S. for commercial sale since then. Extractor (firearms) In repeating firearms with moving bolts , the extractor is often one or a set of hook -like flanges on the bolt head that grabs onto the casing's rim , so when the bolt moves rearwards the casing is pulled out of the chamber. It is typically aided by a protruding ejector in the receiver or the bolt, which provides an opposite counter-push that couples with

390-495: The War, Naomi Alan, an engineer employed by Smith & Wesson, developed the 6-round full-moon clip. However, many civilian shooters disliked using moon clips. Although full moon clips allow a 1917 to be very quickly reloaded, loading and unloading the clips is tedious, and bent clips can bind the cylinder and cause misfires. For these reasons, in 1920, the Peters ammunition company introduced

416-529: The cartridge cases (e.g., 5mm Bergmann ), and such pistols, therefore, lacked extractors. The spent case was forced out of the chamber by recoil and was subsequently ejected. As this system did not provide for easy clearance of misfires, it was not very successful, especially for self-defense handguns needing to be cleared quickly and reloaded in the event of a cartridge primer malfunction . Nonetheless, there are examples of contemporary modern semi-automatic pistols that do not have extractors even to this day, such as

442-568: The cartridges in position, facilitate reloading, and to aid in extraction since revolvers had been designed to eject rimmed cartridges and .45 ACP rounds were rimless for use with the magazine -fed M1911. After World War I, they gained a strong following among civilian shooters. A commercial rimmed cartridge, the .45 Auto Rim , was also developed, so M1917 revolvers could eject cartridge cases without using moon-clips. During World War I , many U.S. civilian arms companies including Colt and Remington were producing M1911 pistols under contract for

468-413: The case entirely from the chamber. This situation is encountered on some single-shot rifles, single-shot pistols (such as the break-action Thompson/Center Contender ), and on some break-action single- and double-barrel shotguns . In bolt-action, lever-action, pump-action, semi-automatic, and fully automatic firearms, the extractor typically works in conjunction with a separate ejector to remove completely

494-404: The cases out of the gun, thereby also performing the function of an ejector. Extractors are a hallmark feature of repeating firearms and can be found on bolt-action , lever-action , pump-action , semi-automatic , and fully automatic firearms. Extractors are also found on revolvers , removing cases either in succession (as in a fixed-cylinder single-action revolver) or simultaneously (as in

520-415: The casings when the action is flexed open. Most modern extractors are forceful enough to completely eject the casing from the gun (i.e. integrating the function of an ejector), but some require the user to manually remove spent cartridges. In this situation, the extractor loosens and moves the case out of the chamber just far enough to allow the user to grab and pull out the casing, but not far enough to remove

546-403: The extractor pull to expel the casing entirely out of the gun. In modern dropping block , break-action (e.g. double-barrel shotguns ) and revolver firearms, the extractor is a protrusible piece with flanges on the barrel / cylinder side, which pushes rearwards on the casing's rim and slides it out of the chambers. Some such extractors can push hard and far enough that they completely clear

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572-425: The gun is rendered useless until the action can be cycled by someone with full hand strength. Still, for someone without the hand strength to handle a semi-automatic firearm with a slide against a strong recoil spring, the trade is often made. An extractor also performs the function of an ejector in revolvers. When the striking force applied to the ejector rod is hard and fast enough, the extractor will typically eject

598-490: The half-moon clip, which was assigned to Smith & Wesson, but at the request of the Army allowed Colt to also use the design free of charge in their own version of the M1917 revolver. The Smith & Wesson Model 1917 is essentially an adaptation of the company's .44 Hand Ejector 2nd Model chambered instead in .45 ACP and employing a shortened cylinder and a lanyard ring on the butt of its frame. The S&W M1917 differs from

624-704: The large Brazilian crest stamped on their sideplates and are sometimes referred to as the M1937, the Modelo 1937, or the Brazilian-contract M1917. They have altered rear sights, a "Made in U.S.A." stamp on the left sideplate, and most were fitted with commercial-style checkered grips (though some utilized smooth grips left over from the United States contract). These Modelo 1937 revolvers were shipped to Brazil until 1946, and some surplus batches have been re-imported back into

650-567: The revolvers were re-issued to stateside security forces and military policemen , but 20,993 of them were issued overseas to "specialty troops such as tankers and artillery personnel" throughout the course of U.S. involvement in World War II. During the Korean War they were again issued to support troops. The M1917s were even used by members of the " tunnel rats " during the Vietnam War. Overall,

676-679: The two variants of the M1917 enjoyed over fifty years of service in the U.S. armed forces. The British Army adopted it during World War I, and the Home Guard and the Royal Navy used it during the Second World War. The M1917 was also popular on the civilian and police market. Some were military surplus, while others were newly manufactured. Smith & Wesson kept their version in production for civilian and police sales until they replaced it with their Smith & Wesson Model 22 in 1950. After

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