US2499583A - Cartridge feeder and cartridge feeder dog for automatic firearms - Google Patents

Description

March 7, i950 A. F. c. HENCKEL CARTRIDGE FEEDER AND CARTRIDGE FEEDER DOG FOR AUTOMATIC FIREARMS Filed July 25, 1946 JWM M//mw Patented Mar. 7, 1950 UNITED CARTRIDGE FEEDER AND CARTRIDGE FEEDER DOG FOR AUTOMATIC FIRE- ARMS Aage Frederik Christian Henckel, Hellerup, Denmark Application July 25, 1946, Serial No. 686,237 In Denmark April 30, 1946 1 Claim.

The invention relates to a cartridge extractor guide lever with appurtenant lever dog for automatic firearms of the type where the recoiling parts are in connection with an extractor guide lever pivotable in a vertical plane and provided with two downward legs, through which it is influenced, during the recoil and the forward stroke, by a lever dog mounted on a non-recoiling part in such a manner that the extractor lever is swung rearwards during the recoil, while it is forced forwards during its forward stroke, at the same time feeding a cartridge, conveyed from the magazine, into the chamber of the barrel, and the invention is directed to producing a principally merely rolling motion by the extractor lever on the lever dos, whereby a sliding motion will be avoided.

By the extractor levers with appurtenant lever dogs employed at present, the surfaces of the said parts, which contact one another during the recoil as well as during the forward stroke, are situated in the same vertical plane, and the lengths of the contact surfaces may consequently only be small and considerably smaller than the entire length of the recoil. As a consequence hereof the movement of the extractor lever on the dog will be both a sliding as well as a rolling motion, which will increase the wear on these two elements to a high degree.

This drawback is remedied by the extractor lever with appurtenant lever dog, according to the invention, in that the surface on the lever and the dog, which co-operate during the recoil of the recoiling parts, are oifset from the surfaces by which the said parts co-operate during the forward stroke.

An example of construction for an extractor lever with appurtenant lever dog, according to the invention, is illustrated in the drawing.

Figure 1 shows the lock parts of a firearm, in left-hand side view, and partly in section, after the removal of the left-hand side-wall in the lock case and of certain parts of the trigger mechanism, when the lock'is closed;

Figure 2 shows the same parts, but with open lock, and

Figure 3 shows a. section along the line III-III in Figure 2.

In the drawing, I indicates the barrel, II the lock frame, and I2 the lock bolt pivotable on a bolt I3 between the sidewalls of the lock frame. All these members mentioned belong to the recoiling parts of the firearm. The recoil spring is described as I4.

I5 is a cartridge extractor slidable longitudinally on the bolt and operated by the extractor guide lever I5, which latter is a lever pivotable in the left-hand side of the lock frame and supported by a long bushing I'I on a bolt I8 through downward brackets I9 on the sidewalls of the lock frame. Lever I3 is on top provided with a lateral plug 2U engaging a slot 2| in the side of the extractor. Below the revolving axis, the extractor guide lever is provided with two curved legs 22a and 22D for co-operation with the lever dog. 23a and 23h are wings, which reinforce the legs against lever I6. According to the invention, the two legs are situated each in its own plane at a right angle to the revolving axis, and the extractor lever dog fastened to the bottom plate 2li of the lock case is correspondingly divided into two parts, 25a and 25h, each situated in a plane identical to that of its leg on the lever, so that each leg will co-operate by its lower plane, 26a and 2Gb respectively, with the edge plane, 21a and 2lb respectively, of the dog situated underneath. Toward the close of the rearward travel of the recoiling parts, the curved plane of plane 2617 will roll off the plane 2lb and thereby cause the extractor guide lever to swing rearwards, carrying along the extractor together with a cartridge conveyed by it from the magazine; during the forward stroke of the recoiling parts, the curved part of plane 26a. will roll off the plane 21a and thereby cause the lever to swing forwards carrying along the extractor together with the cartridge, which latter is thus inserted into the chamber 28 of the barrel.

Having thus described my invention, what I claim is:

In an automatic firearm, a cartridge extractor guide lever pivotable in a vertical plane, said extractor guide lever being connected to the recoiling parts of said firearm, two downward legs carried by said extractor guide lever, an extractor guide lever dog mounted on the non-recoiling parts of the gun and operatively engaging said extractor guide lever through said downward legs,

said extractor guide lever cooperating with said extractor guide lever dog during the recoil of the recoiling parts, whereby a purely rolling motion by the said extractor lever on the said guide lever dog is produced, and a sliding motion is prevented, the planes of said extractor guide lever and said extractor guide lever dog being offset in relation to the planes through which the said recoiling parts co-act during their forward stroke.

AAGE FREDERIK CHRISTIAN HENCKEL.

No references cited.

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