US1899702A - Magazine barrel for guns - Google Patents

Description

Feb. 28, 1933. c. F. LEFEVER MAGAZINE BARREL FOR GUNS Filed Feb. 18, 1929 I INVENTOR 6%dr'Z 6.8.271; efcrer ATTORNEY construction.

" magazine barrel.

' charging the Patented Feb. 28, 1933 UNITED PATENT OFFICE" .v

CHARLES LErEvm. or PLYMou'n MICHIGAN, Assienon 'ro DAI SY MAunrAo- TUBINGCOMPANY, or. rLYMonrH MroHIGAN, oonronA'rIono-F MICHIGAN 'MAG'AZINET BARREL non Guns Applicationfiled iebruary 18, 1929; Serial No. 34Q,978.

The invention relatesto, guns and more particularly to air guns which are provided with an outer or false barrel within which is arranged the shooting barrel and an adjacent It is the object of the present invention to obtain a construction of combined shooting and magazine barrel insertable in the false barrel and which has various advantages such as simplicity in construction, greater strength and rigidity- To this end the invention consists in the construction as hereinafter set forth.

In the drawing:

Figure 1 is a longitudinal section through the .false barrel of a gun showing myv improved magazine. and shooting barrel construction engaged therewith;

Figure 2 is an enlarged Figure 1;

Figure cross section of 3 is a similar view of a modified Figure 4 is a perspective view of the magazine and shooting barrel detached.

In the present state of the art,it is usual to form the shooting barrel and the magazine barrel of two separate members which are attached to each other with provision for disshot from the magazine through an aperture into the shooting barrel. It is one of the features of my improvement that the magazine and shooting barrels, are formed from a single blank and are therefore integral with each other. This imparts; greater strength and rigidity, as each ofthe barrels forms a truss or reinforcement for the other. It is, however, necessary to avoid any crevice in the shooting barrel which would permit the escape of air and I have therefore provided a seamless tube which forms a liner for said barrel and effectively seals the same.

: As shown in Figures 1 and 2, a sheet metal I blank is bent into a substantially S-shaped cross sectionA and having the lower shoot.- ing barrel cylinder portion A, the upper magazine barrel cylinder portion A with the connection portion A in common to the two barrels. 'Theopposite'ends of the member A are fashioned for engagement respectively with the screw threaded plug or bushing B permitting which detachably engages. the

her G for closing the muzzleend-of the false barrel. As shown, the attachments are formed by extensions A A 'of the PQrtionA which are inserted respectively in, the plug B andcap C andiare brazed or otherwiserigidly secured thereto. Adjacent to theplug B the true barrel A is cutaway at D to receive the. shotfrom the magazine barrel and the end portion of said magazine barrel is-rounded piston abutment B in the false barreland the cap memover. as ndicated'atiEYto guide the shot throughsaid aperture. The portionAtis not completely closed into cylindrical formbut terminated so asto leavealongitudinal slotv F extending the entire length thereof and the passage of. a lugor fingerv picceGonthe shotfollowerI-I; This follower: H also engages one end. of the spring, I whichurges it in a (lire'cti on to{discharge the shot, theopposite end of said spring abutting against the (cap member C. To permit of introducing the spring and shot follower into. the magazine barrel, the latteris slottedat its rear. end to form a bendable tongue'J and this tongue is first bent'outward sufficiently to permit. of the introduction of. the. follower andspringafter which it. is closed to retain said parts There is also anotch KfQrmedintheIbarrel' A .on theedge adjacent toithe slot F, which; notch is adapted to 'receivethe finger piece. G to lock the. springand follower in. retracted position .A loading .ap'erture L is formed in the barrel A slightly infadvance, of the,

notch Kand. in a position to clear the follower when retracted.

Thec'onstruction as far described is of sheet steel whichis heat 90 and the straightening. of .the barrel to take out anywarping incidental preferably formed V I treated to blue thesurf-ace thereof, After this bluing process from accidental displacement.

to the heat treatment, the firingbarrel is com-E pleted by the insertion. of a seamless tube M. therein. This tion which limits the plug or bushing B, being providedat its rear end with a slightly y is preferably introduced through the end engaging the pluglor bush- 'ing B, sail tube M being provided at its rear end with a slightly flanged or enlarged p r; 7

concentric. to the axis thereof,

flanged or enlarged portion which limits the outward movement thereof. The forward end of the tube M after passing through the cap C is peened or flanged over to hold said 7 tube permanently in position. The tube M may be made of comparatively thin metal, as the strength and rigidity of the structure is provided through the member A. Also, if so desired, the liner tubehI may be made of a diflerent'metal, such for instance as brass, which has a lubricating effect on the shot when discharged from the barrel.

While the constructionthus far described is as preferably for1ned,-I may form my combined. barrel as shown in Figure 3 which sub stitutes for the Sshaped structure a loop N. This does not, however, as completely close the shooting barrel as the construction shown in Figure 1. I therefore deem the latter con- 'StIfL1CtlOI1 preferable.

What I claim as my inventionis: 7

1, In a gun, a combined shooting and magazine barrel formed of an integral sheet metal blank fashioned into cylindrical segments about two spaced parallel axes continuous two spaced parallel axes, extensions. at op-' posite'ends of one of said segments, heads mounted'on said extensions to be aranged one of said heads forming a bushing for en aging the 7, piston abutment and the other a cap for-the end of the false barrel, and a liner tube inserted within said heads and co-axial seg- 'ment and constituting the shooting barrel,

the other segment forming the magazine barrel. 7 V V g 3. In a gun, a combined shooting and magazine barrel; formed from an integral sheet metal blank fashioned into an S-shaped cross section and 'aliner tube inserted within one of the segments of the S-shaped cross section, 4. In a gun, a combined shooting andmagazine barrel formed of an integral sheet metal blank fashioned into anS-Shaped cross section having cylindrical segments about two spaced parallel axes, one ofsaid cylindrical segments" being substantially closed and theother leavinga longitudinal slot, a liner tube inserted Within the closed segment and a shot follower inserted within theother metal blank fashioned into an S-shaped cross section having cylindrical segments about two spaced parallel axes, one of the said segments being substantially closed and the other being slightly open to provide a longitudinally extending slot, said closed segment having extensions at opposite ends thereof, heads mounted on said extensions to be concentric with the axis thereof, a liner tube inserted within said closed segment and heads and being apertured near one end thereof to communicate with the other segment, the end of said other segment being fashioned to form a deflector. for the shot into said aperture. r

In testimonywhereofl aflix my signature. CHARLES F. LEFEVER; r

" segment and having an operatingfinger piece 7 I projecting through said slot. v 7

5.1 .1 a gun, the combined shootingfand magazine barrel formed of an integral sheet

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