US1146753A - Air-gun. - Google Patents

Description

A. V. DICKEY.

AIR GUN.

APPLICATION F|LED1uNE|9,1913.

Patented July 13, 1915.

- 2 SHEETS-SHEET I.

Ammin WITNESSES:

A. v. mcKEY.

AIR GU.

APPLICATION FILI-IDl IUNEVIQ. 1913. 19146353; PatentedJuly 13, 1915.

2 SHEETS-SHEET 2.

,J v ATTORNEY i, mg modified construction of the breech- ARTHUR V. DICKEY, 0F SEATTLE, WASHINGTON,

AIR-GUN.

Specification of lLetters Patent.

Application iled Iune 19,- 1913. Serial No. 77,559.

To all whom ,it may concern.' v

Be it known that I, ARTHUR V. prom, av citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Air-Guns, of which the following is a specification. 'f

This invention relatesto air-guns of .the type described and illustrated in United States Patent No. 1026,303, issued to me May 14, 1912. Its object is the perfecting of such guns to render the same more eicient, more com act, the various operable parts more dura le and easy of access, and generally, to provide an air-gun which will have a more extended use than'hitherto.

' The invention consists, more particularly, in the improved construction o and novel devices for, actuating the breech-block, and in the employment of safety appliances to uncock the gun and likewise prevent the accidental discharge of the same.

The invention further consists in the no vel l construction and combination of various other features which contribute ciency of the gun. p

The invention is illustrated in the accompanying drawings, wherein- Figure 1 is a vertical'longitudinal section of an air-gun embodying the present inv'ention in its preferred form. lFig. 2 is a horizontal sectional view of a portion of the same. Fig. 3 is a transverse vertical section through 3 3 of Figs. 1 and 2. Fi. 4 is afra mentary longitudinal vertica section 'of t e gun from the op osite side to which it is shown in Fig. 1. ig. 5 is an enlarged longitudinal sectional view of the pump-barrel 'shown detached. Fig. 6 is a perspective view of the breech-block. Fig. 7 is a similar view of the breech-block shifting-lever. Fig. 8 is a like view of the reciproca-ting actuator for the breech-block lever. Fig. 9 is a pel-SPW. tive view ofthe trigger lock. Fig. 10 is a longitudinal vertical sectional view illustratto the eiliblock, its operating mechanism and associ- A ated partsof the gun. Figs. .11 andy 12 are transverse sectional views through 11-11 and 12,-12, respectively, of Fig. 10. Fig. 13 is a perspective view of the breech-block Y{shifting-pin shown in Fig. 10.- Fig. 14 is a `'perspective view of the actuator for the shiftingpin shown in the preceding view.

Similarly to the gun shown inthe aforesaid patent, and' referring to Figs. 1 to 9,

this invention is provided with a frame 1 Patented July 1a, i915.

to which are securedfthe gun-barrel 2 and v the stock` 3. The rear end of the barrel is socketed in a member 4 which is chambered, Aas at 5, to receive the breeclbblock 6. Communication is had by apassage 7 arranged to be in alinement with the barrel-bore, between the chamber 5 and an air-receiver 8 which is communicai-ively connected by a duct 9 with an air-rrervoir 10.

At its inlet end, the passage 7 is provided with a seat for a valve 11 which is yieldingly held in closed position by a spring 12.

18 represents a pump cylinder communieating from its rear end by a duct 14 with the reservoir 10. A spring-pressed non-return valve 15 is utilized to prevent any return How of air from the reservoir. Said pump-cylinder is desirably positioned in the stock of the gun. The pump plunger 16 is operated through the agency of a pistonrod 17 which is connected by a link 18 with a lever 19. The latter is hingedly connected at its forward end to vthe gun-frame 1 against which itis laid when unemployed An improvement to the pump consists in having the piston-rod where it extends lthrough the plunger, of less diameter than the bore 20 (Fig. 5) to thereby afford an air passage through the plunger. At one side of the plunger, lthe rod is provided with a collar 21 and a plate 22 is secured to the rod at the other side. Said plate and collar are spaced apart a distance greater than the thiclmess ofthe plunger so that there will be lost motion to the piston-rod at the beginning of each stroke before the collar or plate encounter the plunger to subsequently pull pr push the plunger. When the piston-rod i is thus moved independently of the plunger,

air is free to flow through the latter to afford a supply for compressing after the plunger has reached the ends of its successive strokes and during the beginning of the following movements of the piston-rod.

To the rear of the member 4 is a tubular casing 23 within which is a removable tube 24 which serves as the magazine for the projectiles l. This magazine is secured in place as by a 'bayonet-joint" comprising a pin 25 (Fig. 2) engaging in a slot 26 provided in the casing 23. Within the magazine is a cylindrical follower 27 which is yieldingly pressed toward the open front end of the tube by means of a helical spring 28 and whereby the projectiles are pressed for` and with the discharge end of the air-pas-v sage 7. Said block is provided with abranch 30 which'extends into an opening provided in the member 4. The branch 30is formed with a notch 31 (see Fig. 6) to receive the arm 32 of a lever 33 which is fulcruined intermediate its length to a pivotal pin 34. The other arm 35 of said lever is provided with a stud36-which is engaged in a camslot 37 provided in the top portion 38 of an i actuator (F ig. 8) which is connected to the gun-frame for longitudinal."reciprocatory y movements. 4The slot 37 is arranged so that the actuator, upon being thrust forwardly,

, will cause the breech-block to be shifted to present the pocket thereof into position tov receive a projectile from the magazine, and

when the actuator is moved in the contrary direction, the cam-slot vwill effect the movement of the breech-block to present the pocket in line with the barrel-bore.

Below the gun-barrel is a tube 39 containing the main-spring 40 adapted tourge a hammer-block 41 rearwardly against an ex- ,tension 42 of the valve 11 to unseat the latter when the hammer-block becomes operative. Rigidly secured to and extending through the hammer block is a. pin 43 Whose ends pro- 'trude through longitudinal slotsprovided in the tube 39. Extending downwardly fr om the actuator part 3S and between the side flanges 44 thereofl .is affinger 38 whose ollice is to engage the pin 43 when the actuator 1s thrust forward to effect the forward travel of the hammer-block and the compression of the spring 40. When the hammer-block has been thus moved forward, it is engaged by the latch-arm 45 of abell-crank lever through the agency of a spring 46. The other arm 47 of this lever is connected by a. pull-rod 48 with a trigger 49 fiilcrumed to a pivotal in 50. v

To lock the trigger so that it may loe rendered temporarily inoperative to effect the release of the hammer-block, I provide a safety device consisting of a bell-crank fever, (Fig. 9) having an arm 5l arranged 'to be swung against the trigger, as shown in Fig.

1, through the instrumentality of the other arm or finger-piece 52. The arm 5() is formed with flat faces 53 disposed 1n rectangular relations with each other and furnish seats against which a leaf-spring 5,4:bears to prevent the accidental movement of the safety device when 'the same is'set in operative or inoperative positions with respect to the trigger. j i. 1

In operation, the actuator is thrust forward, as above explained, to shift the breechblock .into position to receive a projectile and likewise cause the hammer-block to be carried into engaged position with the latchy'arm 45; the actuator is then retracted to shift the breech-block so that the projectile will be brought into position to be discharged. Oftentimes, however, it is desirablev to uncock the gun by returning the hammer-block to its rearinost or inoperative positionfwithout discharging the, projectile.

To this end, I provide a slider attachment comprising a bar 55 movable longitudinally in guides 56 and is arranged to have its front end contact with the hammer-block pin 43 when the slider is pushed forward, as by ,a lug 57 provided ,on the rear end of. the bar. i i

To employ the slider to return vthe' haminer-block'to its rearinost position, the slider isnfirst pushed forward b v the operator against the pin 43.r `whereupon the latcharm 45 is withdrawn from-the hammer- ,block :by pulling the trigger 49. The hammer-block thus released is pushed by the main spring 40 against tlie slider which is allowed to slowly recede 'with the hammerblock in opposition to-a thumb pressure applied vby the operator against the lug 57.

Referring now to the modifications illus# trated in Figs. 10 to 14, inclusive. the breechblock is operated b v an oscillatory rod 6() having a bit 61 which engages within ythe notchf31 of the block-branch 30. The rod i60 isy mounted in suitable supports, such as 62,iprovided on the-'giin-fram oi" parts which are frigid therewith and extends through a. hole 63 provided in a longitudinally slidable actuator 64. Said actuator serves as a nutwith respect tofsaid rod. the latter being formed with a screw-thread 0i' a fin 65,as shown. which fits within ay helical groove 66 extending .from the hole 63. As

` represented, theactiiator is provided with guideways 67 and 68 which receive the gunbarrel 1 and thetube 39' to c`o^act therewith to obviate any rotary movement to th'e actuator when moved back and forth'in the performance of its function.

Like theaforcdescribed actuator, the ac'- tuator 64 isl provided with`a downwardly directed finger'-iS2 which serves to engage the hainiiicr-block pin 43 when the actuator `is thriist'forward.

In operation, the

the rod 60 to swingthe bit 61 in such a linaniier as to cause'tlrc breech-bloclgpto bcuioved into position to receive a projectile and also.

actuator 64, in being 'pushed forward. effects a partial rotation to lis canse the hammer-block to be carried into operative position. When the actuator is pulled back, the breech-block is eiected to carry the projectile into position to be olischarged.

The invention will, it is believed, be understood from the foregoing description.

What claim, is

l. in an air-gun, the combination with the projectile magazine, the gun-barrel, a reservoir for fluid under pressure, agduct connecting' said reservoir with the barrel, a. valve for said connection, a spring-pressed hammer block for opening said valve, a breech-block, longitudinally-disposed vibrating device engaging the breech block, an actuator for 'turning said device to move said breechblock into operative position and for' operating the hammer-block, means for engaging said hammer-block inits operative position, trigger' devices for disengaging the last named means from the hammer-block, and means for rendering said trigger-means temporarily inoperative.

2. In an air-gun, the combination with they projectile magazine, the gun-barrel, a reservoir for fluid under pressure, `a duct connecting said reservoir with the barrel, a valve for said connection, a spring-pressed hammer-block for opening said valve, a breechblock, means for moving said hammer-block Yinto operative position and operating the breech-block, comprising a member having a. projection to engage the breech-block, and

an actuator for turning said member, means for engaging said hammer-block in its operative position, trigger devices for disengaging the last named means from thehammerblock, and means cooperating with said trigger-devices whereby the yhammer-block may be moved into inoperative position Without influencing said valve.

3. In an air-gun, the combination with the projectile magazine, the gun-barrel, a reservoir forv fluid under pressure, a duct eonnecting'said reservoir With the barrel', a valve for said connection, a spring-pressed hammer-block for opening said valve,l a breech-block, a vibratory device connected with said breech-block, a longitudinallymovable actuator :tor moving said hammerblock into operative position and operating the breech-block through said device, means for engaging said hammer-block in its operative position, trigger devices for discngag! ing the last named means from the hammerblock, means for rendering said triggermeans temporarily inoperative, and means vcooperating with said trigger devices Whereby the hammer-block be moved into inoperative position Without influencing said valve.

4. "In an air-gun, the combination with the gun-barrel, an air-reservoir communieating with said barrel, a valve for said communication, a spring-impelled hammerbloek for opening the valve, trigger-controlled devices for releasably securing the hammer-block in operative position, a breech-block, a vibrating device engaging said breech-block, and an actuator for operating thebreech-blook through said device and for conveying the hammer-block into position to be engaged by said trigger-controlled devices, of means acting supplementary to said devices Whereby'the hammerblock may be moved into inoperative position Without aliecting either the breechblock or said valve.

Signed at Seattle, Wash., this 6th day of June, 1913.

ARTHUR V. DICKEY.

Witnesses: y

PIERRE BARNES, HORACE BARNES.

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