US2373622A

US2373622A - Firearm

Info

Publication number: US2373622A
Application number: US495256A
Authority: US
Inventors: David M Williams
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-12-13
Filing date: 1943-07-19
Publication date: 1945-04-10
Anticipated expiration: 1962-04-10

Description

April 10, 1945. D. M. WILLIAMS FIREARM Original Filed Dec. 13, 1939 m @w m a ws Ii Y MW WM N l mMmWm Patented Apr. 10, 1945 Original application December 13, 1939, Serial No. 308,929. Divided and this application July 19, 1943, Serial No. 495,256

3 Claims.

This invention relates to firearms and particularly those of the type wherein the energy of the explosion of cartridges of varying lengths or energy and power is used to perform the operations incident to reloading the firearm in preparation for the next shot.

This application is a division of applicants copending application Serial Number 308,929, filed December 13, 1939, Patent Number 2,336,146, dated December 7, 1943. It is to be understood that the invention may be applied to any type of firearm including, for example, rifles, shotguns, machine guns, hand guns, etc., these being merely illustrative.

It is important and desirable that the firearm be so designed and constructed as to be easily and cheaply manufactured and assembled and simple to take apart and reassemble.

These and other objects will appear in the following description and drawing which are merely illustrative.

In the drawing:

The figure is a fragmentary sectional elevation with the action open and a cartridge ready to be carried into the chamber by the bolt on the closing motion thereof.

As has been stated, one form of the invention will be described as applied to the conventional .22 caliber short and long cartridges, although it is distinctly understood not to be limited thereto. In the drawing, the usual barrel 29 is shown having a threaded engagement 2| with the receiver 22, in which the bolt 23 is slidingly mounted. The bolt 23 is provided with extractors .24 on either side of the bolt. A striker 28 is carried in a suitable aperture in the bolt 23, said striker having a head 29 that is engaged by the striker spring guide means 30. A striker spring 3| acting upon the head 30 of the guide means urges the striker to firing position, the opposite end of said spring abutting end 32 of the tubular guide means located in the plug 33. The plug 33 may be removably connected by means of screw threads 34 to the receiver 22. The tubular guide means 35 is mounted in the'plug 33 so that it may have a loose movement to properly allow for alignment thereof with the bore 36 of the bolt 23 and the other parts cooperating therewith. A bushing 33a may be placed inside of plug 33 if desired, which may be of metal or fiber. A recoil spring 31, located on the outside of the guide means 35, surrounds the tubular guide means 35 and one end thereof has abutting engagement with the interior of the plug 33 as at 38 and the other end with the bolt at shoulder 39. The striker spring is located between the shank of the striker spring guide means 30 and the interior bore of the tubular guide means 35. In this manner, the springs are properly guided and confined in their motion.

Trigger and sear The striker 28 is provided with a suitable sear notch '40 which is adapted to engage thepivoted sear 4|, said sear being pivoted on pin 42. The sear 4| has a spring 43 serving to rotate the sear to efiective position holding the sear, said spring abutting the receiver at 44. The projection 41 of sear 4| is suitable for engagement with the notch 48 of the pivoted lever 49, said leverbeing pivoted as at 50 on the trigger 5|, a spring 52 serving to rotate the lever 49 in a counterclockwise direction. In Fig. 1, the lever 49 is shown as it has been rotated in a clockwise direction by retraction of the bolt 23. The notch 48 has converging upper and lower walls so that as projection 41 is moved therein there will be no play between these parts.

The trigger is described in detail in said'parent application, Patent Number 2,336,146.

Ejector An ejector 19 is provided which may be fastened to the receiver by means of screw 80, the same screw holding the guard BI and magazine spring retaining latch 82 in place. The extractors 24 hold the cartridge case against the face of the bolt. As the bolt moves backward, the ejector 19 will contact the case and throw the fired case out of the ejection opening in a conventional manner.

Cartridge feeding means For purposes of illustration, a box magazine feeding means is shown of conventional type, a1-

lower 89 and follower spring 90 serve to feed the cartridges upwardly against the turned-in ears 9! of the cartridge retainer 92, such that the rim 93 will be retained therein until the bolt 23 in its closing movement carries the rim 93 of the cartridge forward until said rim comes opposite the slots 94 in the cartridge retainer, at which time the follower spring 90 will push the cartridge up so that the bolt will move the cartridge into position in the chamber 58.

Stock assembly The forward end of the stock and receiver assembly is held in position by screw thread means 98 engaging the lug 99 which may be fastened to the barrel or the forward end of the receiver. The rear end of the receiver may be held in position by engagement of the screw. thread means I with the notch l0| in the plug 33, It is evident that the screw thread means serves as an adjustment for the elevation or positioning of the receiver relative to the stock I02. This will also serve to lock the plug 33 in position.

It is apparent that the invention is not limited to the use in a shoulder rifle as shown, but may be used in any type of firearm, such as a hand weapon or a machine gun. It is seen by this invention that it is possible to use cartridges of varying lengths, powers and energy in a single auioloading. firearm without adjustment or changing parts, which has not previously been feasible. A gun which is easy to manufacture and assemble and which has an improved trigger mechanism has been provided. The embodiments of the invention as herein described are to be understood, as typicaland illustrative only, said invention being susceptible to the embodiments in many forms, all falling within the scope of the appended claims.

What is claimed is:

1. a firearm, a stock; a, receiver having a notch facing said stock on a rear portion there-- of; a barrel at the front end of said receiver; a vertically adjustable screw threaded means having' a head and carried by said stock, a portion only of said screw threaded means being enterable into said notch to vertically position the rear end of said receiver, said head and notch. being constructed and arranged so that they are vertically interlocked when assembled; and connecting means adjacent the front end of said receiver for assembling the receiver and barrel to said stock and to engage said screw threaded means in said notch so as to adjustably align and hold said barrel and receiver to said stock.

2. In a firearm, a stock; a receiver; a barrel assembled to the front end of the receiver; a closing means at the rear end of said receiver,

said closing means having a notch at the rear end thereof; a vertically adjustable screw threaded means having a head and carried by said stock, aportion, only of said screw threaded means being enterable into said notch to vertically position the rear end of said receiver, said head and notch being constructed and arranged so that they are vertically interlocked when assembled; and connecting means adjacent the front end of said receiver for assembling the receiver and barrel to said stock and to engage said screw threaded means in said notch so as to adjustably align and hold said barrel and receiver to said stock.

3. In a firearm, a stock; a receiver; a barrel assembled to the front end of the receiver; a

' closing means at the rear'end of said receiver,

said closing means having a notch at the rear end thereof; a vertically adjrustable screw threaded means having a head and carried by said stock, a portion only of said screw threaded means being enterable into said notch to vertically position the rear end of said receiven, said head and notch being constructed and ar ranged so that they are vertically interlocked when assembled; and screw threaded connecting means passing through said stock and engaging said barrel, said means being adjacent the front end of said receiver for assembling the receiver and barrel to said stock and to engage said first mentioned screw threaded means in said notch so as to adjustably align and hold said barrel and receiver to said stock.

DAVID M. WILLIAMS.