US2620582A

US2620582A - Firearm magazine

Info

Publication number: US2620582A
Application number: US85691A
Authority: US
Inventors: Earl M Stukas
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-04-05
Filing date: 1949-04-05
Publication date: 1952-12-09
Anticipated expiration: 1969-12-09

Description

Dec. 9, 1952 E. M. STUKAS 2,620,582

FIREARM MAGAZINE Filed April 5. 1949 INVENTOR. Emez. M. S 70/64 s,

%%44M@mm v Mm ATTOEIVEYS.

Patented Dec. 9, 19 52 1 claim; 1;

Itti's among the obj ectsofthe invention-to pro:-

videan' improved cartridge magazine including; springjmeans forholding'cartridges' irrpositiorrtobexnove'd by the gunbreechmechanismfrom th'e magazine into the receiver of the gun, wherein themagazinehas a sideiopening'through which a charge. of cartridges can be: rapidly insertedand is? provided with' means'for locking the cartridge feeding spring-meansout of the waywhile the magazine being charged; inwhich aslidable cover is provided for the side opening in themag azine andin which the features providing the rapid'chargingarrangement maybe applied-to an existingmagazine unincorporated in a" new magazine and will not interfere, in anyway, withtheuseofi the magazineina gun for which themagazine is designed; will notinterfere with thee-nor mal feeding of the cartridges from the magazine; and-willgreatly facilitate the insertion of afirst charge of cartridges into the magazine,- especially under: adverse conditions, such as cold or wet weather, or limited time, and in which the modifled magazine is strong. and durable in construction and is little, if any, more expensive to manufacturethan a'conventional magazineofthe same size and type.

Other objects an-dgadvantagesiwillbecome apparent from a consideration of the following description. and. the appended claim in conjunction with .the,accompanying drawing wherein:

Figure. 1' isa side elevation of a. conventional fi'r'earm;,shown in broken lines, with a magazine illustrative ofithe' invention, shown. in fullilines, operativel'y positioned therein;

Figure 2is a side elevation on a somewhat enlarged scale of-? the magazineillustrated in Figure 1;.

Figure 3 is a front edge elevation of the magazine;

Figure 4 is a side elevation of the magazine showing the side opposite that shown in Figure 2;

Figure 5 is a longitudinal cross-section taken on the line 55 of Figure 3;

Figure 6 is a longitudinal cross-section of a fragmentary portion of a magazine taken substantially on the line B6 of Figure 2; and

Figure 7 is a longitudinal cross-section of a fragmentary portion of the magazine taken substantially on the line 1-1 of Figure 2 with the movable parts of the magazine in a different position from that illustrated in Figure 6.

With continued reference to the drawing, the magazine comprises an elongated, flattened tube [0 of generally rectangular cross-section having an internal width slightly greater than the length of a;cartridge to bereceived-therein,,and arr-in terna'l thickness slightly greaterthan thediam' eterofsuch ac'artrid'ge. This" flattened tube is" provided in one sidewall with a-rectangular-opening l1 havinga width substantially equal to -the length ofa cartridge; and a'length'substantially equal'tothe length of' the cartridge storage'space' in the magazine, and'is' providediin' its'opposite sidewall with an 'elongatedslot-l 2 having a-length slightlygreater than the" length of the cartridge storage space in the magazineand havihgiat one end a circular'enlargement l3: An end wall= M closes one end of the. tube Ill'and; projects outwardly at the forward edge'ofithetube; astindi= cated at IE; to providea tongue forfacilitating the movement'ofv the magazine into and out'of' the? magazine-receiving space in the stock'orgrip l6 of the gun: The magazine tube. lflis' open-atits opposite end and is: provided with inturned' lips' lT'which retain thecartridges in the magazine" andfposition the top cartridge'in themagazine'to;

be engaged. by the breech mechanism'of' the: gun and. moved from the magazine into the receiver:

of the gun through. the opening I8 in the front:

side of the magazine; at the upper" end" of the" latter;

A follower I 9; which may be" in the form: off'ai substantially rectangular. block, is,s1idablymount"- mm the magazine tube anda coiled compression.

spring 2 0' is disposed between this follower. and the end'wall M'of the'magazine to resiliently urge:

cartridges in thelmagazine toward the open end of the latter.

A button 21 has a shank 22 which extends" through the slot l2' and throughan aperture in the follower I'9 into a.recess 23' provided. in the follower-where the shank is rivetedovertoifirmly secure" the button. to the follower. The. riveting; may be performed through an opening 24 provided in the side wall of the magazine tube between the opening ll and the end wall M. The button has a substantially circular shoulder 25 bearing against the side of the follower l9 opposite the recess 23, and has a head 26 spaced outwardly of the shoulder 25 by an annular reduction 21, the shoulder 25 having a diameter substantially equal to the diameter of the circular enlargement [3 at the end of the slot l2 adjacent the end wall I 4, and the annular reduction 21 having a diameter substantially equal to the width of the remainder of the slot.

The head 26 of the button is used as a grip for sliding the follower IS in the tube 20 in a direction to compress the spring 20. When the spring has been compressed to an extent such that the shoulder 25 is in registry with the enlargement [3 at the end of the slot, the button is pulled outward sufiiciently to seat the shoulder in the enlargement, as illustrated in Figure 7, to releasably lock the follower in it fully retracted position at the bottom of the cartridge storage space in the magazine.

The end of spring 20 is extended upwardly and curved to provide a loop 28 between the follower l9 and the side wall of th tube opposite the slot I2 which loop resiliently urges the follower toward the side wall in which the slot is provided to assist in seating the shoulder 25 in the slot enlargement 13. When the head 26 of the button is pressed inwardly against the force of spring loop 28, shoulder 25 will be moved out of enlargement l3 and the follower released.

The magazine tube It! is provided along the longitudinal edges of the side opening H with pairs of spaced-apart notches which provide respective tongues 30 between the two notches of each pair. These tongues are raised somewhat above the remaining portions of the tube side wall along the edges of the opening H to provide guideways along the opposite, longitudinal edges of the opening, and a flat, substantially rectangular cover plate 3| is slidable in these guideways to cover and uncover the opening H. This plate 3| is turned outwardly at one end to provide a flange 32 affording a finger grip for sliding the cover plate in the guideways.

In order to charge the magazine, the follower I 9 is moved toward the end wall 14 by the button 2| until the shoulder 25 of the button register with the enlargement 13 at the end of the slot 12, whereupon the button is pulled outwardly to seat the shoulder in the enlargement and thus releasably lock the follower in retracted position and the cover plate 3| is then slid in a direction to uncover the opening II. The proper number of cartridges is then dropped into the magazine through the side opening I I, whereupon the cover plate 3| is slid relative to the magazine in a direction to cover the side opening, and the button 2| is pressed inwardly to release the shoulder from the slot enlargement I3, to thereby release the follower to resiliently urge the cartridges toward the open end of the magazine.

With the magazine of the invention, a full charge of cartridges can be inserted in an extremely short time, particularly as compared with the length of time required to insert the cartridges one-by-one into the open end of a conventional magazine.

The invention may be embodied cific forms without departing from the spirit or essential characteristics thereof. The present embodiment is, therefore, to be considered in all respects as illustrative and not restrictive, the

in other spe- 4 scope of the invention being indicated by the appended claim rather than by the foregoing description, and all changes which come within the meaning and range or equivalency of the claim are, therefore, intended to be embraced therein.

What is claimed is:

A cartridge holding magazine for a firearm comprising a thin-walled hollow body of substantially rectangular shape and having flat side Walls disposed in spaced apart and substantially parallel relationship, an end Wall closing one end thereof and a cartridge retaining lip formation at the other end thereof, a cartridge follower disposed in said body and movable longitudinally thereof, a compression spring disposed in said body between said follower and said end wall resiliently urging said follower toward said lip formation, one of said side walls having a longitudinally extending slot therein terminating in an enlargement at its end adjacent said end wall, a button secured to said follower and projecting through said slot, said button having a shoulder thereon engageable in said slot enlargement to releasably retain said follower in a position adjacent said end wall against the force of said spring, the other side wall of said body having an elongated opening therein for the insertion of cartridges into said magazine body while said follower is retained in position adjacent said end wall, a cover plate for said opening disposed against said other side wall, and means carried by said other side wall and engaging said cover plate securing said cover plate to said body for sliding movement relative to said body into and out of covering relationship to said opening, said means comprising tongues on said other side wall spaced apart along the longitudinal edges of said opening and engaging said cover plate adjacent the longitudinal edges of the latter.

EARL M. STUKAS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,044,983 Brown Nov. 19, 1912 1,267,293 Veteto May 21, 1918 1,351,370 Chase Aug. 31, 1920 1,797,951 Gaidos 1- Mar. ,24, 1931 2,014,177 Herlach et a1 Sept-10, 1935 2,073,128 Wadsworth Mar. 9,1937

FOREIGN PATENTS Number Country Date 2,580 Great Britain of 1883