US1361402A

US1361402A - Magazine for firearms

Info

Publication number: US1361402A
Application number: US399284A
Authority: US
Inventors: Oscar V Payne
Original assignee: AUTO ORDNANCE CORP
Current assignee: AUTO ORDNANCE CORP; AUTO-ORDNANCE Corp
Priority date: 1920-07-27
Filing date: 1920-07-27
Publication date: 1920-12-07
Anticipated expiration: 1937-12-07
Also published as: FR527681A; GB161132A

Description

0. V. PAYNE.

MAGAZINE FOR FIREARMS. APPLICATION man JULY 27, 1920.

2 SHEETSSHEET F] [m @6535 0150a? a Payme Patented Dec. 7, 1920.

O. V. PAYNE. MAGAZINE FOR FIREARMS.

APPLICATION FILED JULY 27. 1921,. 1,361,402,, Patented Dec. 7, 1920.

2 SHEETS-SHEET 2- i" a. W S

osonn. v. TION, or NEW YonK,

PATT OFFI.

PAYNE, OECLEVELAND; OHIO, ASSIGNOR TO AUTO-ORDNAH'CE CORPORA- N. Y.,' A CORPORATION OF NEW YORK. 4

MAGAZINE For. FIREARMS.

Specification of Letters Patent.

Patented Dec. "3, 1920.

Application filed m 27, 1920. Serial at. 399,284.

T 0 all whom it may concern:

Be it known that-I, Osonn V. PAYNE, a citizen of the United States of America, and resident of Cleveland, in the county of Guyahoga and State of Ohio, have inventednew and useful Improvements in Magazines for Firearms, of which the following is a speci fication.

This. invention relates to an improved magazine for firearms and more partieularly to a magaz ine of the drum'type, thepresent invention being in the nature of an improvement on my prior form*of drum magazine as disclosed in my Patent No. 1,347,755, granted July 27, 1920.

Magazines of this adapted for use withma'chine guns or other firearms firing sustained bursts with great rapidity of fire. quired in large numbers and therefore simplicity and relative low cost of manufacture are essential. It is highly important that the device be compact and contain'as few parts as possible andthat these parts be of rugged construction and positive ih operation since any jam or failure to function properly may have very serious results.

Broadly defined my magazine comprises a flat drum having spiral guideways adapted to guide cartridges to an opening in the periphery and having a rotor adapted to force the cartridges along the guideway.

It is'an object of the present invention to simplify the construction, assembly and operation of rotary magazines of the character described. It is an object to provide a rotor for such a magazine which is composed of simple stamping joined by integral con- "necting elements with consequent economy in body member 9, type are particularly The magazines are re-' in any desired manner as itself at 19 to prevent the -tridges in that portion.

way 20 Fig. 2 is a section taken on line 2-2 of Fig. 1';

Fig. 3 is a fragmentary perspective view ishowing a portlon of the rotor.

Fig. is a fragmentary section showing the spring connection;

Fig. is a fragmentary planview showing the sprlng detent device and the body clip catch;

6 is a section on line 6-'-6of Fig. 5; Fig. '7 is a fragmentary. section showing the cover catch; and

. Fig. 8 is a section on line 8-8 of Fig. 7. The magazine comprises the sheet-metal havingthe upturned edge 10 the member being centrally perforated and having the inturned bearing 11 surrounding the central perforation. The cover member -12 has the peripheral flange 13 adapted to make a close fit upon the outer v face of the upturned edge 10 of the body member 9. The. cover is centrally perforated and the perforation is surrounded by the inturned bearing flange 14. The body.

member 9 has itsperiphery cut away upon acurve at 15 and the adjacent portion of the upturned edge 10 is also cut away and turned back upon itself at 16. The cover is simi" larly cut away, at 17 but for a greater depth.

The body member contains the sp ral 80. guideway 18 which may be attached thereto by welding. The, rear end of the guideway is reversed upon insertion of car- A similar guideformed of somewhat thicker material I is fastened to the inner side of the cover member 12. I

The hollow shaft 21 passes through the two

members

9 and 12 and bears upon the flanges 11 and 14. The end of the shaft .21 which projects outward through the magazine body member 9 is externally grooved to receive the body clip or catch 22 T his clip 22 is shown in Fig. 5 and comforked portion engaging the shaft inturned The prlses and an extended arm 23 having an edge 24' fitting into a slot in'the body. clip possesses suflicient resiliency to main-. I

tain the inturned edge engaged in the body.

The opposite end of the shaft projects outwardly through the cover 12 and is externally grooved to receive the cover catch 25. This catch is pivoted to the cover at 26 and the opposite end is indented to form the catch 27 which coacts with a similar indentation 28 in the cover as shown in Fig. 8.

The rotor 29 is preferably formed of a single stamping of sheet metal centrally perforated and having the inturned flange 30 adapted tofibearon the shaft 21. The rotor is piovided with a plurality of outwardly extending feet 31. The .front of each foot as shown is substantially upon a radial line, while the rear of the foot inchnes away from the front upon such an angle that the distance between the front of one foot and the rear of the adjacent foot remains substantially constant as the distance fromthe center increases. The front and rear surfaces of the feet which will contact with the cartridges in the magazine are provided with the axially extending flanges 32 and 33, which are formed integrally of the sheet metal of the rotor. The rear surface is formed upon two successive intersecting flat curves as shown in the drawings in order to better contact with and retain the cartridges inthe channels. The outer surfaces of the feet are cut away at 34 to permit the introduction of an additional cartridge in the space occupied by each foot.

As best shown in Fig. 2, the rotor is dished in stamping so that while the flat central portion is adjacent thecover member the feet are spaced midwa between the body and cover and substantlally fill the distance between the two guides 18 and 19..

Adjacent the far side of the opening between the lips 16, are the two cartridge deflectors or guide members 35 which are riv eted to the upturned edge 10 of the body member 9. The faces 36 of these deflectors adjacent the opening are curved concavely so as to urge the cartridge up against the opening between the lips 16.

The cup shaped spring casing 37 has the bearing flange38 resting upon the shaft 21. The edge of the cup is provided with lugs 39 which pass into openings in the rotor and are upset to retain the cup and rotor together. The clock spring 40 is contained within the casing 37, its outer end being attached to the cup and its inner end tothe shaft 21 in the manner shown in Figs. 2 and 4. The .collar 41 is slipped 'on to the shaft 21 and the pin 42 is passed through registering. openings in collar and shaft, the head of the pin being countersunk into the collar. The upper end of the pin extends through the collar and through a perforation adjacent the end of the spring. The remay then be lifted 011',

tainer 43 is then sprung around the first turn of the spring, an opening receiving. the up- 06 per end of the pin and the opposite end of the retainer'covering the head of the pin 42. The portion of the shaft 21 adjacent the inner side of the body of the magazine is provided with the integral flange 44 to which is bolted the ratchet disk 45. The outer periphery of this disk is formed into a plurality of substantially tangential spring fingers 46 the ends of which are bent downward to contact with the magazine body 9. This magazine body has pressed into it a plurality of detents 47 adapted to coact with the ends of these fingers. In the use of the magazine the cover 12 is removed by lifting outward the free end of the cover catch 25 until the catch 27 is disengaged and then swinging the member 25 counter clockwise about its ivot 26 until the shaft 21 is disengaged. he cover 12 he magazine is now filled by placing rows of cartridges base down between the guides 18 in the spaces between the feet 31, cartridges also being placed in the cut out portions 34 of the feet.

The cover may then be replaced and locked by means of the catch 25. The-bullets are of less diameter than the base portions of the cartridges and will lie between the guides 19, which due to their greater thickness have a closer spacing than the guides 18. I

With the magazine filled and closed a handle is inserted in the bore of the shaft 21 as indicated in Fig. 2. The inner end of the handle is bifurcated to engage the pin 42. The handle is rotated in a counter clockwise direction as seen from the rear of Fig. 2, or in Fig. 5, the fingers 46 slipping past the detents 47 during the winding but retaining the spring againstunwinding by their engagement with these detents when winding is stopped. i

The tendency of the rotor 29, to be rotated by this winding of the spring is prevented 110 by the engagement of the first cartridge with the cartridge guides or deflectors 35 and lips 16. The opening between the lips 16 is less than the diameter of a cartridge so that the cartridge cannot be forced upward and out by the pressure of the rotor.

Tn fitting the magazlne to a gun the cover side of'the magazine is placed toward the muzzle. The first cartridge projects partly out of the magazine opening between the 120 lips 16, and the gun bolt extending down through the cut away portion 15 of the, magazine body will contact with the base of the cartridge and will carry it forward through the opening 17 in the magazine 125 cover and thus out of the magazine and into The force of the spring the rotor revolves the barrel of the gun. It should be. noted thatthe opening 17 is deeper than the alined opening 15'.

40 carries the rotor around and positions the cartridges successively between th -lips 16. The spring is made of such strengthto cause the rota tion to be of sufficient rapidity to insure the presentation of a cartridge for every movement of the gun bolt. T he engagement of the cartridge with the" guides and lips 16 automatically stops the rotor at the proper point betweenshots.

While the guides 18 and 20 have been referred to as spiral, they are preferably not formed upon a true logarithmic spiral but are formed by two eccentric circular arcs as shown in the drawing in order to. minimize lost space due to the attenuated end of the spiral.

An important feature of the invention lies in the broad bearing flanges which both body and rotor have upon the shaft. These broad bearings greatly facilitate the action of the magazmaJWhen winding the spring, the shaft rotates upon both sets of bearings and when the magazine is feeding cartridges to a gun, the shaft is stationary and thereon upon the bearings 30 and 38.

I claim: x

I. In a drum magazine, a rotor compri s, ing a unitary sheet metal member having feet extending therefrom.

2. In a drum magazine, a rotor comprising a unitary sheet metal member having integral cartridge carrying feet extending ing a unitary therefrom, the

eet having axially extending flanges upon each side. 7

3. In a, drum magazine, a rotor cbmprissheet metal member having integral cartri e carrying feet extending therefrom, the eet increasing in width as they extend outward, whereby the distance beyond adjacent feet is substantiallyiconstant.

4. In a drum magazine, a rotor'comprising a unitary sheet metal member having integral cartridge carrying feet extending therefrom, and an indentation in the outer edge of eachffoot adapted to receive treattridge. V

5. In a drum magazine, a rotor comprising a unitary sheet metal member having a central perforation surrounded by an in-, tegral inturned bearing flange. I

6. In a drum 'magazine, a rotor comprising a unitary sheet metal member having. integral cartridge carrying feet extending therefrom, the feet extending in a plane substantially parallel to that of the body of the rotor but oifset therefrom.

7. A drum magazine cori prlsing. a body edge being member, a cover, a shaft extending therebetween and a rotor adapted to rotate upon said ,shaft, integral inturned flanges being formed upon the cover and body member to upon the cover and body members, the

guides being of cartridges, guides being guides whereby adapted to receive the ends the thickness of one of said the width'of the guideway adapted to receive the bullet end of the cartridges is less than the width of the guideway adapted to receive the cartridge bases.

10. A drum magazine comprising a body member, a cover, a shaft therebetween and a rotor journaled on said shaft, a spring housing cup journaled on said shaft, its attached to the rotor and a spring located in said spring housing, the \rotor and housing having integral inturned flanges serving as bearings on the shaft.

11. A drum magazine comprising a body member, a cover, a shaft therebetween and a rotor journaled on said shaft, a spring havin a cup journaled on said shaft, its edge being attached to the rotor and a spring located in said spring housing, the rotor and housing having integral inturned flanges serving as bearings on the shaft, and

the cover and body members having inturned flanges serving as bearings for the shaft.

12. A drum magazine comprising a body member, 8 1 cover, a shaft therebetween and a rotor jpurnaled on said shaft, a s ring housing cup journaled on said sha its edge being attached to the rotor and a spring locate in saidspring housing and adapted to rotate the rotor, and ratchet means attached to the shaft and coacting with body member to prevent rotation of the shaft in one direction.

13. A drum magazine comprising a' body' 14. A drum magazine comprising a body less than that of the other v member a cover, a shaft therebetween and a rotor journaled on said shaft, and a springadapted to rotate the rotor, a pin passing through the shaft, the inner end of the spring having a; perforation fitting over one end of the pin, the shaft bein .hol- 10W whereby a Winding handle may e inserted therein to grip the pin and thus r0- tate the shaft and wind the spring.

15. In a drum inagazine, spiral cartridge guideways, means urging cartridges along said guldeways', a peripheral opening in the magazine of less Width than a cartridge, and fixed deflectors urging cartridges from the guideway against the opening.

Signed by. me at Cleveland, Ohio, this twenty-first day of Jul ,1920.