US1116675A

US1116675A - Air-gun.

Info

Publication number: US1116675A
Application number: US79551613A
Authority: US
Inventors: Edgar P Cook
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-10-16
Filing date: 1913-10-16
Publication date: 1914-11-10
Anticipated expiration: 1931-11-10

Description

AIR GUN.

APPLICATION IILED 00T. 1s, 191s.

1, 1 1 6,675. Patented Nov. 1o, 1914 3 SHEETS-SHEET l.

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AIR GUN.

APPLIOATION FILED ocT.1G,191s.

Patented Nov. 10, 1914.

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ATR GUN.

APPLIGATION FILED 00116, 191s.

1,1 16,675. Patented N0v.10,1914.

3 SHEETS*SIIEET 3.

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Specilcation of Letters Patent.

Patented Nov. 1o, 1914.

Application led October 16, 1913. Serial No. 795,516.

The main 'object ot this invention is to have a gun constructed, so that it', may be sufficiently accurate and powerful to be used tor general sporting and target purposes, without requiring the use o t' gun-powder or other explosives to give Vthe missiles used the necessary velocity.

Another object of. this invention is to have the gun constructed, so that it :may be manipulated with ease and at the same time he provided with means for adjusting parts of the gun, whereby its sensitiveness of action may he varied to suit the conditions arising or the person using it.

.i furtl'ier object is to provide a gun which will be comparatively noiseless and smokeless.

Other objects of this invention will become apparent as it is more fully set forth.

The gun referred to in this application consists in general of a barrel arranged to receive the bullet or shot cartridge, and a casing properly attached to the barrel and provided with 'the general parts of the device.`

The working parts consist of a movable chamber 4having an opening arranged to aline with the bore of the barrel so thatJ the blast of air Jforced through the chamber by a plunger provided therein, will force the bullet or shot-cartridge from the gun in the manner desired. A suitable power` spring, together with catches and trigger mechanism are provided for the proper working oi thc plunger, and toggle, rack and pinion or other means for the proper working or' the movable chamber, as will be more fully described in a later part of the specification.

In the accompanying drawings which illustrate embodiments ot this invention, llligure l represents a side elevation of a shoulder gun embodying` this invention. Fig. Q represents -a side elevation of a one hand gun embodying this invention. Fig.

3. is a detail in perspective of a traveling air-chamber used in the gun. Fig. fl. is a transverse section of the gun on the line 9-9 of Fig. 8. Fig. 5. is a detail of a safety device used in the gun. Fig. 6. is a detail of a catch or sear used in the gun. Fig. 7. is a longitudinal section through a preferred form of bullet, to be used in this gun. Fig. 8. is a longitudinal section through the gun shown in Fig. l, showing the working parts on a slightlyv enlarged scale. Fig. 9. is a detail section showing the working parts in loading position, and the relative positions of the power arm and air-chamber to permit the bullet or cartridge to be placed in the bore of the gun. lt also shows the manner in which the set-lock is operated. Fig. 10. is a detail section showing the bullet and working parts in shooting or cocked position. Fig. 11. is a portion of a gun, seen from beneath, a portion of the casing cut away and showing the rack and pinion device for operating mechanism.

Similar reference characters refer to similar parts throughout the drawings.

ln the construction shown in the drawings. l represents the stock, shoulder or hand portion of the gun and may be of any conventional design, and 2 is the trigger guard or protectoigand is suitably attached to the gun. AThe casing containing the main working parts ot the device is designated by the numeral 3. and the barrel by 4. The casing Il is in general, cylindrical, except at the portion 5, adjacent to the stock, where it is arranged for the trigger mechanism, and other parts working in connection therewith. The casing adjacent to the barrel 4, is iin'ovidcd with an opening 8, through which the bullet or cartridge may be placed into a recess (i, of the barrel, provided for the same. The bore of the barrel is indicated by the numeral 7.

An air chamber 9 is provided in the casing and is arranged to slide easily in it.- Its front portion 10, is provided with a hole through which the air blast is directed to 'the recess 6, when the gun is fired. A plunger tl, having a stem 12, is disposed inthe air chamber 9, and closely ts the same, so that there will he but a slight leakage of air, when it is forced into the chamber 9, by the coiled spring 13, at the instant of firing the gun.

'.lhe catches or sears 14, are .'lulcrumed on the pivot 16, on the casing 34C, and are provided with hooked ends 17, which engage on lugs 18, on casing 32, a part of the plunger or piston. Portions 19 of the sear are extended toward the rest of trigger mechanism and are actuated by a spring 2'1. The trigger proper is representedby 22, the trigger spring by 41, the set-hammer by 43, and the spring Which actuates the hammer by 44. l

The set screw 20, and set-screw keeperscrew 42 are providedfor the proper adjustment of the'trigger 22. v Fastened to the portion 10, of the air chamber is a lug or projection 25, to which the lever mechanism is attached. Of this lever mechanism, 26 is the draw-bar, 27 the lever proper, 29 a catch for holding lever in its horizontal position, and 28 the handhold on lever 27.

In Fig. 11 the lever mechanism and lug 25, are not used, but a rack and pinion mechanism substituted instead. The rack of cogs is represented at 46, on the air chamber 9, the cog-Wheel for actuating same is represented by 47, and the crank by 48. A joint 49, is provided in the crank so that said crank may be folded under the gun. In this figure as Well as in others 45 represents a projection from the traveling airchamber Which actuates the Set-hammer 43, as is shown in Fig. 9.

Referring to Fig. 7 which shows a detail of a preferred form of bullet, 30 indicates the bullet proper, 31 the rear flange of bullet, intended to take the rifling and spin the bullet, 33 the front band of bullet, intended .to merely ride on the riiing lands and guide the bullet. 'i

The safety as shown in Fig. 5 is composed of a shaft 37, a projection 38, for engagement With portion 24, of sear as shown in Fig. 6. .Nd 39 of safety is a knurled portion of same designed for the safetys easy op eration. This safety is pivotally connected to the frame of gun.

In operating the lever design gun, the operator first pulls down on the lever 27 till the working parts are in the position shown in Fig. 9. This compresses the mainspring till the lugs 18 are caught on catches 17, and. the projection 45, sets the hammer 43, in its cocked position. TWhile the mechanism is in this position the bullet or cartridge is inserted into the recess 6, through the opening 8, of casing, after which the lever is brought back to its horizontal position and the gun is ready to shoot.

In the rack and pinion design, the-crank is first loosened from a catch holdin it under the casing, then turned outwar as shown in Fig. 11. Then by so turning it as to run the rack of cogs, on air chamber, back toward breech of gun, the spring will be compressed and hammer set as in Fig. 9. After inserting bullet or cartridge the process is reversed, which closes the action.

The improvement claimed over the Patent No. 1,045,373 issued to Edgar P. Cook, Nov.

'26, 1912, is in the means, part 45, used to operate a set-lock mechanism, and a rack and pinion method of operating the general mechanism.

Obviously n'hile only two modifications `of this device are shown in the drawings',

it is not desired to limit this application for patent to that particular construction or in any other Way otherwise than limited by the prior art as many modifications of this invention may be made without departing :from the principles thereof and coming Within the scope of the appended claims.

Having thus described the invention, I claim:

1. In a device of the class described the combination of a 'gun-barrel arranged to re-v ceive bullets or cartridges, a casing for holding said barrel,'a hollow air-chamber slidably arranged within said casing, a plunger within said air-chamber, a coil spring for actuating said plunger', trigger means.Y

for controlling said plunger means, mean'y for slidably operating said air-chamber an thereby the plunger means, a means attache to or a part of said air-chamber which sai means shall be so arranged as to operate th hammer of a set-lock or lmock-off system or trigger mechanism during the operation of manually cooking the gun.

2. In a device of the class described, a

In testimony whereof I hereunto atlix my signaturein the presence of tivo witnesses.

EDGAR P. COOK.

Vitnesses:

A. NoRRIs, E. C. Jonas.