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    • 1. 发明专利
    • Improved cartridge-feed mechanism for automatic fire-arms
    • GB182809A
    • 1922-12-14
    • GB1870622
    • 1922-02-20
    • CHARLES SUTTER
    • F41A9/32F41A17/40
    • 182,809. Sutter; C. March 25, 1921, [Convention date]. Machine guns.-Cartridge feed mechanism of the kind comprising a feed-lever P, Figs. 4 and 4 , which is rocked about a vertical pivot p to advance the cartridge strip by the engagement of its projection p in a groove k' in the breechblock K is characterized by a feed-lever displaceable downwards about a horizontal pivot p to cause the projection p to hold the breech-block open when an exhausted cartridge strip is ejected from the gun. The cartridges are carried beneath feed strips X, Fig. I., which are fed through the feed-box F by the claw p on the feed-lever which engages with the central openings x of the strip. The lever P is detachably mounted beneath the hinged top cover G by means of a plate p which is retained by clips g , g . The plate p carries the horizontal pivot p and can also rock about the vertical pivot p , which is retained by the spring h' of the detachable backsight H. When a feed strip is exhausted and ejected from the gun, the claw p of the feed-lever is no longer in engagement with the strip and the lever is therefore depressed about its pivot p by a spring p to cause its projection p to hold the breechblock open. The retaining pawl g of the feed strip is mounted on the hinge g of the cover G. The feed-block F, Fig. 11, carries the ejector f , a tongue f for removing cartridges from the strip and hinged flaps f , f . The top cover is retained by a catch g , the spring-controlled pin g of which carries a roller g against which an incline p at the rear end of the feed-lever bears under the pressure of the spring p when the cover is open. On swinging down the cover, the lug p is therefore always in the correct position to engage the groove k in the breech-block whether the block is in the open or closed position. The slide h of the leaf backsight is cylindrical in form, and the sight is detachably fixed to the cover G by a projection h and by the feed-lever pin p'. The parts of the gun can be readily disassembled. The barrel A is screwed to the receiver E which slidably supports a stockcarrier I fastened by a pin i' which is retained by the catch g of the top cover. The receiver is slotted to permit passage of the stud l of the cocking-handle L which is normally retained in forward position by a spring, the stud l engaging a recess in the motor piston J when the cocking- handle is moved to the rear.
    • 3. 发明专利
    • Improved firing regulator for automatic fire-arms
    • GB182127A
    • 1922-11-16
    • GB1738922
    • 1922-02-20
    • CHARLES SUTTER
    • F41A19/03
    • 182,127. Sutter, C. March 25, 1921, [Convention date]. Machine guns.-Relates to automatic guns in which the speed of discharge is regulated by a mechanism which arrests the rearward movement of the reciprocating breech-block or motor piston, delays its return for a predetermined length of time and then releases it for return to the firing position. According to the invention, the delaying mechanism comprises an escapement device which checks the unwinding of a spring wound by the rearward movement of the reciprocating member. Figs. 2 and 2 show a sectional elevation of the gun with the motor piston J and breech-block K in the firing piston. The trigger Q and sear S, Fig. 2, are mounted on a common axis pin q and are locked against movement by the arm q of a safety lever q , which is released when the gunner grasps the pistol grip n . The safety lever and sear are controlled by a single spring q arranged between them. A vibrator r worked by an escapement, Fig. 11, is used to regulate the speed or firing. The piston J engages near the end of its rearward movement a lever r to wind a spring r' which, when the lever enters a recess in the piston, reacts to rotate a gear r and through a wheel r and one-way clutch teeth r , Fig 11, to rotate a wheel r . This wheel has teeth to engage two teeth r on the vibrator r which is designed to give a predetermined rate of fire. The motor piston is retained in rearward position by a lever 0, and end o of which engages a recess j in the underside of the piston, the other end o engaging a cam surface r on the gear r . The engagement of the arm s of the sear s with a notch r in the gear r' prevents firing until the trigger is pulled, when firing is effected by the spring r which rotates the gear r to release the lever O. The firing mechanism is carried in a casing R detachably engaging the stock carrier I and r and retained by the trigger pin g . The cartridge-feed lever P is detachably mounted beneath the hinged top cover G or, a vertical pivot p' and an horizontal pivot p . The lever has a projection p' engaging a groove in the upper part of the breech-block to reciprocate the lever in a transverse plane about its pivot p and cause a projection p to feed the cartridge strip in the feed box F. When the strip is exhausted and ejected, the lever P is moved about its pivot p by a spring p to permit the projection p to hold the breech-block open.
    • 4. 发明专利
    • Improved breech-closing and locking mechanism for gas-operated automatic guns
    • GB177497A
    • 1922-11-16
    • GB498422
    • 1922-02-20
    • CHARLES SUTTER
    • F22G3/00F41A3/40F41A3/84F41A5/18F41A5/28F41A9/32F41A9/54F41A17/28F41A17/40F41A19/03F41A23/08F41A35/02
    • 177,497. Sutter, C. March 25, 1921, [Convention date]. Machine guns- Relates to gas-operated guns in which the motor piston J is cennected with the breech - block K by toggle-links D. k , the member k of which forms a locking-dog for the block, and consists in preventing strain on the Jinks by operating the breechblock, in a manner known per se, by a tenon j' on the motor piston engaging with lost motion a recess k in the breech - block. On firing, the initial movement of the piston relatively to the breech - block lowers the dog k' through the link D and the block is then moved rearwards by the projection j , the dog k sliding beneath a rib e on the receiver E. As the breech-block moves to closed position, the locking-dog is pressed upward against an abutment e' on the receiver by a cam i' on the motor piston. The Specification as open to inspection under Sect. 91 (3) (a) also describes (1) the cartridge-feed mechanism which forms the subject-matter of Specification 182,809, (2) the firing-mechanism which forms the subject-matter of Specification 182.127, (3) the muzzle-support which forms the subject-matter of Specification 182,126, [Class 119, Small-arms], (4) a gas-regulating plug valve, Fig. 24 (Cancelled), which has ducts c , c , c , of varying size so that by turning the plug the gas action on the piston may be varied at will. The plug is forced against the wall of its casing by a screw c to prevent leakage of gas. (5). A rear leaf sight H. Fig. 6 (Cancelled) the slide h of which is cylindrical in form, the sight being detachably fixed to the lid G by a projection h and by the feed-lever pin p which is pressed down by the sight leaf spring h . This spring also serves to keep the leaf trunnions h in place; and (6) means whereby the parts of the gun can be readily disassembled. The barrel A is screwed to the receiver E which slidably supports a stock-carrier I fastened by a pin i which is retained by the catch g' of the top cover. The hand guard U is supported in a recess in the front of the receiver and carries a projection u to lock the barrel to the receiver. The receiver is slotted to permit passage of the stud on the cocking piece which is normally retained in forward position by a spring, the stud engaging a recess in the motor piston when the cocking piece is moved to the rear. The firing-mechanism is carried in a casing R detachably engaging the stock carrier I at r and retained by the trigger pin q which is turned by a lever on the outside of the casing R. The stock N is fitted with a pistol grip n and is fixed to the stock carrier by a tube n and bolt n'. The return spring n is held within the stock-carrier by a spring pin n . This subject-matter does not appear in the Specification as accepted.