US1026303A - Repeating air-rifle. - Google Patents

Description

A. v. DIcKEY.

BEPBATING AIB. RIFLE. APPLICATION FILED 00T.26,1911.

Patented May 14, 1912,

ARTHUR V. DICKEY, OF SEATTLE, WASHINGTON,

SHEFFIELD, 0F SEATTLE,

ASSIGNOR OF ONF-HALF TO WM. M. WASHINGTON.

REPEATING- AIR-RIFI,E.

To all whom t may concern:

Be it known that I, ARTHUR V. DICKEY, a citizen of the United States, residing at Seattle, in the county of King and State ot Washington, have invented certain new and useful Improvements inl Repeating Air Rifles, of which the following is a specification.

The object of this invention is the provision of a repeating air -gun of simple and inexpensive construction and one which may be employed instead of the ordinary fire-arm for shooting small game, target practice, etc.

he invention consists in the novel construction and combination of parts, as will be hereinafter described and claimed. In the drawings, Figure 1 is a longitudinal vertical section of an air gun embodying my improvements.

Fig. 2 is a side elevation thereof. Fig. 3

is a horizontal sectional View taken on plane 3 3 of Fig.. 1. Fig. 4 is a view similar to Fig. 3. but showing the breech-block and the operating mechanisl'n therefor' in different positions. Fig. 5 is a perspective view of the breech-block actuator, and Fig. (5 is a like view of the breech-block.

The reference numeral 10 designa-tes a frame to which the .gun barrel 11 and the stock 12 are rigidly secured. The rear end of the barrel is socketed in a member 13 which is chamber-ed as at 13 to receive the breech. block 14. Communication is had by passage 15, arranged to be in alineinent with the barrel bore, between the chamber 13 and an air receiver 1G which in turn is communicatively connected by a duct .17 with an air reservoir 18. The latter is desirably disposed within the gun-stock and may advantageously constitute a part of the stock structureas illustrated in Fig. 1. At its inlet end, `the passag L. 1'5,1s provided with a seat 15 for a fvalveflfl which is vieldingly held in closed pi'isitin by a spring 19.

2O represent-s a pump cylinder having communicative connection from its rear end with said reservoir through a tube 21. A1 spring pressed check, or non-return, valve 22 is utilized to prevent any reverse tlow of air from the reservoir. A vent hole 23 is provided in the pump cylinder in proximity to the valve 22 and is normally closed bv a 'screw plug 24 engaging in screw threads formed in the hole. Said pump cylinder is Specification of Letters Patent. Application led October 26, 1911.

Patented May 14, 1912. serial No. 657,609.

arranged to have its axis parallel, or nearly so, to the gun-barrel.

secured to an end ot' a piston rod 26 whose other end'is connected by a link 2T with a lever 28 at about the midlength ot' the latter. This lever is connected from its` forward end by a hinge 29 to the underside o1 the gun frame '10, against. which it is laid when unemployed. The'lever serves as a pump handle to operate the plunger 25, the piston-rod 26 thereof being maintained in axial relation to the pump cylinder by an attached block 30 which is slidably mounted on a guide bar 30.

To one side ofthe gun barrel 11 is a de,- tachabletube. 31 which sc rves as a magazine for the projectiles. Such magazine may be secured by having its rear end introduced into a socket 32 provided in the member 13 while its forward end is held firmly against the gun-frame by means of a button catch 33. lVithin the :magazine is a cylindrical plug 34 which is yieldingly pressed t'oward the open rear end ot' the tube by means of a helicahspring 35 and whereby the projectiles, such as P, are pressed rearwardly to be fed to the breech-block 14 as required. The plug 34 is provided with a tongue 34 which projects through a longitudinal slot 31 in the magazine wall.

At the `forward endof the slot is a notch 312 whereinto the tongue 3l is engaged to hold the spring 35 while the projectiles are being 'placed in the magazine. After the magazine is charged and restored to the gun the tongue 34 is withdrawn from the notch 311 whereby the spring 35 is rendered opcrative to feed the projectiles. The aforementioned breech-block 1.4, as best shown in Figs. 4 and (i, consists of a plug having a cylindrical end 14', a tapering middle portion 142 and is o1 a polygonal shape at the other end, as at 143.

The chamber 13 for the reception of the brcwfh block is shaped to acconnnfulate the same and the ollice otl the chamber part 132 with which the polygonal end ot' the block engages is to prevent the latter from turning. In the tapering portion of said block is aV conical shaped aperture 37, or pocket, as it will be hereinafter designated, which extends diametrieally .through the block. This pocket is positioned so as to be presented to the magazine to receive a projectile when the .block is in one position 4' The pump plunger 25 the upper edge of the actuator.

e) and also when the block has been shifted into the position in which it is represented in Fig. 3 the pocket will be brought in alinenient 'with the barrel bore and the air supply passage l5. lSaid block is manipulated to ctl'ect its inward and outward inovements through the medium of an actuator 3S which is connected to the gun traine for longitudinal i'iecii'noeatory n'iovements, as by headed guide pins "59 and a strap 39 hooked over Said actuator is provided Vith Aa lange or plate 38 having a cam slot B82 whereinto protrudes a pin Al() rigid with the breech-block. The cam `slot is adapted to allord an outward movement to the breech block when the actuator is shoved forward and when drawn 'toward the rear the cam-slot influences the pin Ll() to effect the inward movement of the breech block for bringing the same into tiring position.

il denotes a plate o' resilient material secured to the gun-trame and between which and the plate 4l the rear end of the actuator is engaged to prevent any accidental displacement of the actuator or of the associated breech block when the latter occupies the position it will assume when the gun is ready for tiring.

42 is a handle .extending from the actu ator tor operating the same.

Below the gun barrel (Fig. l) is a tube 4:3 contaiiiing the main spring 4st arranged to urge a hammer block l5 rearwardly to encounter a tiring pin t6 which, in turn, is driven by thel spring .impelled block 45 to unseatthe valve 15h-,as will presently be explained. The hammer-block ie provided with a stud 45 which extends through a slot provided in. the tube 43 and also through u slot 47 (F ig. V2) provided' in the gun frame.

When the actuator is thrust forward it ,engages the stud 45' and thus effects the l.ioryvard travel of the hammer block to accomplish the compressionof the main spring 44.' 'To arrest .the block .45 against accompanying the Aactuator when being returned to its normal position, I provide a bell crank lever 48 having an arm 48 which is urged upwardly by a spring 49 to obstruct the block, as will be understood from an inspection of Fig. 1. Said lever is ulcrumed to the frame by a'pivotal pin 50 and has a depending arm 482 which is connected by a pull rod l with'a trigger 52 tulcrumed to .a pivotal pin 53.

is illust-rated in Fig. il, a lea-f spring 54e desirably provided lio-protrude into the `barrelbore to obviate a projectile dropping out o'i the breech block pocket in the event ci' the muzzle end of thegun being directed downwardly. Another feature of theI gun, and one of considerable importance where eccreiate shooting ot' the arm is desirable, is

l (Fig. 3)

ment with the barrel bore.

the ritling of the ba rel bore. Such riiiing consists of helical ridges provided in the periphery of the bore and extending from the muzzle end Ato within a distance of the breech. By such devices the projectile attains considerable momentum before encountering the rifling and in consequence the velocity of the projectile is not appreciably" impeded by the referred to ridges.

'lhe operation et the invention may be explained as follows: The reservoir is supplied with air under compression by operating the pump through the instrumentality of the lever 28 and the link 27 which, in eiiect, serve as toggle elements` (see broken lines 2 a and 27a, Fig. l, of the respective parts) to afford a relatively great pressure to the air during the termination oi, each pumping strokeroi' the pump plunger 25.

The magazine 31 is charged with the projectiles by removing the same from the ygun trame and with the plug 34 held at the end of its forward travel through the agency of the tongue 3st thereof being engaged in the notch 312. The magazine thus loaded is returned to the gun frame and secured to same by the button fastener 33. The tongue 311 is then removed from said notch to release the spring 35 tor operation. To prepare the gun. tor tiring, the actuator 38 is thrust forward by the operators hand grasping the handle 4t2 with the result that the hammer block L15 is pushed forward by the actuator through the medium o1 the stud 45 to compress the main spring 44. At or-near 4the end of the forward travel of the hammer block it lis engaged by the arm of the bellcrankl lever e8 which is accordingly influenced by the hspring 49. 1n such forward momlnent of the actuator, the cam slot 382 thereof causes the pin Al() to give axial motion to the breech. block 14' to move the same from the position in which it is illustrated in Fig. 3 to that in which it is shown in Fig. lc and thereby present the block-pocket 37 in line with the magazine. The spring 35 then asserts its power to shove one of the projectiles P into said pocket. lThe actuatoris 'now retracted to cause the cam slot thereof to actuate through pin/l0 the breech block 14 to return same to its former position with the block pocket in axial aline- To' fire the gun, the trigger 52 is pulled resulting in the rod 5`1 affecting the bell-crank lever 48 to disengage same from the hammer block 45, whereupon the main-spring e4 becomes operative to drive the hammer-block with con siderable :torce against the tiring pin 46 and the latter to transmit the power thus derived against the valve 19, opening the valve in oppositionvto the spring 19 Iand the air pressure prevailing within the `receiver 16. When this valve is opened a quantity of' compressed air is exhausted from therecciver and .tlowin g through passage 1,5`to the rear of the projectile to eject the same from 1. In an air-gun, a magazine for projectiles, a gun-barrel,4 a compressed air reservoir, communicative connectlons between said reservoir and the barrel, 'a valve for said connections, trigger controlled normally inoperative devices for actuating said valve,

means for conveying one projectlle at a time from said magazine to said barrel, said means also serving to render said devlces operative, an air-pump cylinder, a connection between the cylmderzand said rescrvolr,

' a non-retiirn valve in` the last named connection; a plunger forl said cylinder, a pump 25. handle hingedly connected to said gun tiles, a gun barrel, an air reservoir connected by an air-passa e with the rear end of lsaid barrel, a valve or said passage, triggercond trolled normally inoperative devices forl actuating said valve, and means for conveying one projectile at a time from said magazine to said barrel, said means also serving to render said devices operative. Y

3. An air-gun provlded with a gun-frame, a reservoir for compressed air, a gun-barrel, a passage between the reservoir and the gun barrel, a valve for said passage, a breechblock, a receptacle for a projectile provided in said breech-block, an actuator movably connected to said gun-frame, a hammerblock for said valve, a springfor operating the hammer-block, and operative connection between the actuator and the hammer-block and' also between the' actuator J,and said breech-block whereby the hammer-block and the breech-block are respectively actuated to cause the compression of said spring and to afford motion to the breech-block to present the receptacle thereof successively to the magazine and to the gun-barrel.

' p ARTHURV. DICKEY.v Witnesses:

PIERRE BARNEs,` E. PETERSON.

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