US1855404A - Firearm - Google Patents

Description

pri 26, 1932. c. c. Loomis FTREARM Filed Jan. 27, 1931 ,f TTORNEYS.

.5 particularly Patented Apr. 26, 1932 usura@ srarss Lasagna @maar @arios l CRAWFORD C. LOOMIS, 02E ILION, NEW YORK, ASSIGNOB TO REMINGTON ARMS COMPANY.,

' INC., A CORPORATION OF DELAWARE FIBEARM Application led January 27, 1931; Serial No. 511,488.

o of shots which can be fired from repeating and auto-loading guns without the necessity for hand reloading. A single hunter equipped with a large capacity magazine autoloading gun can work great destructlon, with such game as flying birds; and the present depletion of the stock of game birds and other animals 1s frequently attributed to the over-eectiveness of mod' ern repeating and auto-loading guns. For the sake of preserving the game, and perpetuating the sport of hunting, it is becoming 1ncreasingly common among Sportsmen to carry not more than two loaded shells or cartridges in the magazine.

The ordinary type of repeating or autoloading shot gun is provided with a tubular magazine supported beneath the barrel and adapted to contain a column of shells or cartridges up to six in number which are dellvered one at a time into the receiver for transfer to the liring chamber. The magazine tube likewise furnishes a support for the fore-end piece, by the reciprocation of which the removal of empty shells and the transfer of fresh ones from the magazine is eected. For purposes of symmetry and balance magazine tubes are made of such a length as to contain four to six loaded shells and a suitable spring and spring follower for urging these shells toward the rear of the magazine.

It is an object of the present invention to provide a firearm of the usual symmetrical and properly balanced design but with a magazine the capacity of which is definitely limited to a comparatively small number of shells. The magazine tube is of full length, thereby reserving the usual appearance of the gun, ut its capacity is definitely limited to any desired number of shells, in the present instance, two.

Fig. l is a fragmentary side elevation of so much of a firearm asis necessary to illustrate the application of the present invention thereto.

Fig. 2 is a longitudinal section of the magazine with no shells therein.

Fig. 3 is a longitudinal section of the magazine showing the second shell as thrust forward to the limit of its possible movement.

Fig. 4 is a section on the line 4:-4 of Fig. 1.

Fig. 5 is a section on the line 5-5 of Fig. 1.

Fig. 6 is a section on the line 6-6 of Fig. 3.

The firearm comprises a magazine tube 10 supported at its forward end on a lug l1 depending from the barrel 12. Both magazine tube and barrel are suitably mounted at their rear ends in a receiver 13. The magazine tube serves as a support and guide for a fore-end 14 connected through an action bar 15 with the receiver mechanism by which the functions incident to re-loading the gun from the magazine are effected.

The improved magazine tube of the pres ent invention is illustrated as comprising a peripheral depression 16 which serves as a stop to limit both the forward movement of cartridges in the magazine and the rearward movement of the spring follower. The follower, through which the magazine spring 17 exerts a rearward pressure upon the cartridges in the magazine, comprises a cartridge engaging head 18 connected through rod 19 with a spring engaging flange member 20. Referring to Fig. 3, it will be seen that the constriction of the tube formed by the ring 16 is of suiiicient diameter to allow a part of a cartridge to pass therethrough but to engage and stop another part, such a projecting rim at the cartridge head. The same ring or circumferential rib 16 serves the additional purpose of stopping the rearward movement of the flange member 20 of the spring follower. In Fig. 2 said flange is shown in engagement with said ring.

-The distance from the flange member 20 to the cartridge engaging head 18 must be such as to insure that the last cartridge in the magazine will be pushed entirely out of the magazine. However, the anfve member 20 should not project materially from the magazine at any time; hence, the proper spacing of flange 20 and head 18 becomes of substantial importance. To provide a ready adjustment thereof, the end of rod 19 is'threaded and is received in a threaded aperture in the flange 20 and hub 21 secured thereto. The hub 21 is slotted, as shown at 22, and the threaded portion of rod 19 is drilled transversely to receive a holding device, such as the cotter pin 23, which extends through the hole in rod 19 and the slots in hub 2l, thereby securing the rod 19 with its head 18 in any desired position of longitudinal adjustment relative to said flange. A comparison of Fig. 2 with Fic'. 3 shows that the length of the spring fol oWer assembly is somewhat greater than the length of the longest cartridge 24 that can be lused in the particular gun Jto which the tube is attached, its length conforming to that of the section of the magazine tube to the rear of the ring 416. The lengthof cartridges varies slightly but notlenough to permit more than two of the shortest cartridges to enter the magazine. It is obvious that by properly determining the location of the ring 16 and the length of the spring follower the magazine may be made of any desired capacity.

The forward portion of the magazine tube comprises a plurality of longitudinally extending grooves or indentations 25 forming longitudinal ribs on the interior of the tube which may terminate at the ring 16. Like the ring 16, these indentations define a tube of such a diameter as will receive a part of the body of a cartridge but not another part, such as a projecting rim. Thus, in Fig. 3, the body of the foremost cartridge lies in the grooved part of the tube, the head of the cartridge resting against the terminal ring'16. The grooves 25 likewise serve as stiifeners, increasing the resistance of the tube todistortion. The liange 20, being of substantially the full diameter of the tube and designed to move therein, is provided with cut-outs or slots 26 adapted to receive the said ribs 25. It will be noted that, by reason of the relatively greater length of the spring follower, the spring 17 may be made substantially shorter than a spring designed to accommodate a full magazine of cartridges and that the travel of the free end of this spring never materially exceeds the length of two cartridges. y While the magazine tube is of full length and vcan be used interchangeably with an ordinary full capacity magazine, the exterior grooves 16 and 25 serve to indicate plainly and in all ositions of the fore-end that it is a restricte capacity tube.

Further said grooves being formed by inward displacement of the tube metal, it is impracticable to remove them without destroying the tube.

The invention is not to be considered as limited to the particular embodiment of the invention which is illustrated in the drawin and has been herein described in detail, but is to be construed as extending to all equivalent constructions falling within a broad interpretation of the appended claims.

What is claimed is:

1. A tubular magazine for'lirearms con1- prising a plurality of longitudinal ribs adapted to reduce the diameter of the tube to dimensions which will receive the body but not the rim of a cartridge of given size.

2. A tubular magazine for a firearm comprising a section adapted to receive cartridges for use in said firearm and a section of reduced diameter adapted to receive a part only of such cartridges- A tubularmagazine for firearms comprising a plurality of longitudinal indentations forming interior diameter reducing ribs, whereby said magazine comprises two sections of dilerent effective diameters.

4. A tubular magazine for firearms comprising a plurality of longitudinally extending diameter reducing ribs, said ribs terminating in a circumferential diameter reducing ring, whereby said tube is divided into two sections of differing diameters.

5. A tubular cartridge magazine for a lirearm comprising a spring, a spring follower a circumferential ring in the wall of said tube adapted to serve as a stop for an enlarged portion of a cartridge or for said follower. y

6. A tubular cartridge magazine for a irearm comprising a spring, a spring follower and a movement limiting stop adapted to engage and stop either said follower, or a cartridge in said magazine.

7. .A tubular cartridge magazine for a lirearm comprising a plurality of longitudinal ribs, terminating in a circumferential ring, a spring follower having recesses to receive ring.

8. In a tubular cartridge magazine for firearms, a stop located a distance from the end of the tube greater than the length of a cartridge and adapted to prevent the passage of a cartridge, a spring follower in said tube having a part adapted to engage said stop and another part adapted to substantially reach the end of the tube when the first part is in engagement with said stop.

Asaid ribs, and adapted to be stopped by'said l 9. In a tubular cartridge magazine for firearms, a spring follower having a spring engaging part and a cartridge engaging part spaced from said spring engaging part and adj ustably secured thereto.

10. A tubular cartridge magazine, for firearms comprising a circumferential rib, a two- 5 part spring and cartridge follower and spacing member comprising a cartridge engaging head adapted to pass said rib, a spacing piece projecting from said head, and a spring engaging flange secured to said spacing piece;

11. In a tubular cartridge magazine for firearms, a spring, a spring follower, a com bined magazine capacity limiting and spring follower movement controlling stop comprising a projection extending inwardly from the *.15 peripheral wall of said magazine tube.

' CRAWFORD C. LOOMIS.

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