US1114491A - Shot-magazine for spring air-guns. - Google Patents

Description

G. P. LEFEVER.

SHOT MAGAZINE FOB' SPRING AIB. GUNS.

APPLIOATIONI'ILED MAY 31, 1913.

Patented oct. 2o, '1914.

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CHARLES F. LEFEVER, 0F PLYMOUTH, MICHIGAN, ASSIGNOR T0 DAISY MANUFACTUR- ING- COMPANY, 0F PLYMOUTH, MICHIGAN, A CORPORATION 0F MICHIGAN.

SHOT-MAGAZINE'FOR SPRING AIR-GUNS.'

Specification of Letters Patent. ,f

Patented oet. 2o, 1914.

,Application tiled May 31, 1913.V Serial N o. 771,014.

which the following' is a speciiication, refer` ence being had therein to the accompanying drawings. l

The invention relates to air guns of that type in which the initial movement of the shot or projectile is imparted thereto by the mechanical impact of the plunger, while the high velocity is obtained by compressed air.'

It is the object of the present invention,

irst, to obtain a construction of magazine and shot-feeding mechanism which will successively feed a series of shot to the barrel withoutregard to the position in which the gun is held.

'It is a further object to increase the .eifectiveness by .preventing leakage of the compressed air, and further to obtain a simple and inexpensive.construction to manufacture.

In theI drawings: Figure l is a longitudinal section through a portion of a gun barcylinder B for the plunger or piston C, and

D is the piston abutment.

E is the true or shooting barrel, which is detachably secured centrally within the barrel A, preferably by providing it at its inner end with a screw-thread nipple F for engagin a corresponding threaded socket in the a utment D. The outer end of the barrel E is provided with a cap member G which fits within the barrel A- and holds the shooting barrel concentric therewith.

H i a tubular projection on the piston C which is adapted to enter the end of the barrel E and to impart the initial movement thereto.

Forl storingand feeding the shot to the barrel E,- I have preferably provided a mechanism constructed as follows: I is a channel bar arranged adjacent tothe barrel E and preferably secured thereto by flanges J projecting from opposite sides of the channel bar and encircling the barrel. These ianges may be secured to the barrel by soldering or 1n 'any other suitable manner. The outer end ofthis channel barpreferably extends within the cap G, while the inner end 1s provided with 'a rounded portlon K forming a Yguide andk deflector for the shot arranged within the channel. This deiiector 1s opposite an aperture L in the vbarrel E which is of sui'ici'entsize to permit one shot to dropA therethrough, so as to be in the path of the tubular projection H.

The vshot are placed in the channel of the bar by insertion through an aperture M therein, andthe feeding of the series toward Ythe endEnis accomplished by a spring- -N within the channel.

pressedjf'zfollower T hls followerlnaybe retracted by a finger plece O which projects outward through the slot between the inner edge of the channel bar and the barrel, and a notch P in one side of the channel serves to engage the finger pleceO and hold the follower in retracted posltion.

In use, to load the gun the barrel E is disengaged, and the plunger N retracted against the pressure of the follower spring Q, and temporarily locked by engagement of the finger piece O shot may then be successively introduced through the aperture M into the channel, and when 4the latter is full the finger O is disengaged from the notch so as to permit the tension of the spring to operate upon the series. The barrel E is then re-inserted in the false barrel A, after which the gun is ready for use.

To shoot the gun, the plunger spring is compressed by mechanism not shown, and` upon the release of this spring by the trigger the plunger is actuated forward, driving the tubular projection H into the barrel E and propelling forward the shot in said barrel. At the same time the air compressed infront of the plunger or piston C will pass in through the tube H and will develop a pneumatic pressure sulicient to accelerate the shot as it passes through the barrel. After each operation the spring Q, will automatically feed the series of shot forward so that another one is always in the barrel E in readiness to be s hot.

As above stated, the high velocity is imwith the notchI. The' parted to the shot by the compressed air,

and the eliiciency is dependent upon the air pressure, which in turn is dependent upon the closeness of fit of the shotin the shooting barrel. To insure a tight fit, I preferably form the barrel E, as shown, with its rearl end E slightly contracted in diameter vby swaging or otherwise. The amount of contraction of the barrel is such as to be slightly smaller than the diameter of the shot so that the latter will not becomedisplaced in any position of the gun. The air pressure alone might not be sufficient' to force the shot through this contracted portion of the. barrel, but the impact of the tubularprojection H will produce this eectand incidentally willlcontract the diameter of the shot and enlarge its contacting surface with the bore of the barrel. Thus when the shot is forced forward byl the member H it will form an air tight plug, preventing leakage of the air compressed by the piston. At the completion of the movement of the piston the shot thus propelled will reach the enlarged portion of the barrel, where it is free tok be actuated by the compressed air acting thereupon. Thus the velocity will be greatly accelerated and the efectiveness ofthe shot correspondingly increased. i

`What I claim as my invention is.: A

l. In a gun, the combination with the barrel, of a magazine therefor formed of av memberrhaving a U-shaped cross section, said member being arranged parallel to the barrel, and a deiiector at the inner end of said member-arranged opposite an aperture in the barrel. i

2. In a gun, the combination with a barrel, of a magazine therefor comprising a channel bar arranged parallel thereto, a spring-'pressed follower within the channel, an actuating lug on said follower, projecting outward through a slot between the channel- :bar andthe barrel and' forming a means of compressing the' spring-fand la deflectcr at the inner end of said channel bar arranged Y 4f. In a gun, the combination with the bary rel, of a magazine therefor comprising a channel bar arranged parallel thereto and provided with a shot-receiving aperture, a deeotor at the inner end of said channel bar arranged opposite an aperture in said barrel, a spring-pressed follower in said channel bar, a lug or inger on said follower projecting outward through a slot between said channel bar and the barrel, forming an actuating means ,forretracting the follower, and a notched bearing in .said channel bar for holding said follower in retracted posi- 'tion to permit of feeding the shot through said aperture to the channel bar. U

5.y In a gun, the combination with a false barrel, ofl atrue barrel' concentrlcally ar- ,Iangedthereim a magazine also Within the false barrel comprislngla channel-har arranged parallel to the true 4barrel, the true barrel being provided with an aperture communicating with the interior of the channelbar. 'I

In testimon A whereof- I ax my signature in presence o two witnesses.l

CHARLES F. LEFEVER.

Witnesses:

JAMES P. BARRY, Dnnnn'r Comms. vf

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