US1830763A - Airgun - Google Patents

Description

C. C. LOOMIS Nov.. 10, 1931.

AIRGUN Filed Jan. 17. 1928 attoznmtu' gwuanto rd GLOOM NIW;

Patented- Nov. l0, 1931 PATENT OFFICE CRAWFORD C. LOOMIS, F ILION', NEW YORK, ASSIGNOR T0 REMINGTON ARMS COM- PANY, INC., A (XJRYORATION OF DELA'WARE I .AIBGUN applicati med January i7, 192e. semi No. 241,333.

This invention relates to spring operated air guns, and among other improvements contemplates a gun capable of shooting different kin s of projectiles.

' 5 One object of the invention is to provide a simple and improved device for detachably securing the stock or stock assemblyto the barrel or barrel assembly.

A further object of the invention is to Il provide a gun of this type with a plurality lof barrels adapted to be used interchangeably and to'so arrange the barrel receiving parts that any selected barrel may be easily and guickly attached thereto.

A u-rther object of the invention is to pro vide a magazine adapted to receive and deliver to firing position any one of a number of different kinds of projectiles.

A further object of the invention is to provide devices by which projectiles of different kinds may be fed into position to be fired in any redetermined se uence.

A urther object of t e invention isvto provide an air gun with a magazine receiving opening, and to provide a. magazine removably secured in such openin With these and other ob3ects in view the inventionl consists in the novel combinations and arrangements of parts, a representative embodiment of which is shown in the drawings and will be hereinafter described. The drawings illustrate the present inventions as applied to a spring operated air gun of the ty shown and described in my prior copen ing application Serial No. 224,888, filed OctoberS, 1927, but it will be understood that in many respects they are yof'general applicability, and not limited to guns of this particular type. .f

In the drawings:

Fig. 1 is a longitudinal section thru a gun of the type described in my prior application above identified` having one embodiment of the present invention applied thereto.

Fig. 2 is a'fragmentary plan view of the barrel of a gun having one form of the invention applied thereto. v

Fig. 3 is -a fragmentary enlarged longitudinal section showing the construction of barrel and magazine.

Fig. 4 is a fragmentary sectional elevation thru the receiver. f

Flg. 5 is a transverse section substantially on the line 5-5 of Fig. 2.

Fig. 6 is a section 1n plan, showing how different forms of barrels may be used interchangeably.

Fig. 7 is a fragmentary vertical section showing another form of barrel.

Fig. 8 is a transverse section, substantially on line 8-8 of Fig. 4.

The gun comprises a stock and receiver assembly, a barrel assembly and/a power applying assembly. The stock assembly includesl power mechanism comprising a power spring 18 whichencircles the plunger 19 and is compressed between the-,langed end of a fixed reinforclng sleeve 20 and a piston head 21 se' cured to plunger 19. A driving or piston tube 22 extends :forwardly from the'piston and enters an aperture in a fixed plug 0r bushing 23to be hereinafter more fully described.

The bushing 23 andthe piston 21 are faced with leather or other material adapted to make an air tight joint with the wall of the tube 16, and thus together define an air chamber which thru the aperture'24-in the piston Y' tube 22 communicates with the rear end ofl -v barrel 17.

Thepower applying unit 'is-'chiefly housed -901 i in a. tubular member 25, secured below the barrel assembly tube .16 by any. suitable means, such: as v.the arms 26 and 27 depending from the tube 16. Power is-applied to cock the spring 18 by manipulation of the sliding forearm or handle 28, which encircles the tube and is provided at the top with apertures 29 forming a rack engaged by a gear' c 30 which rotates about the floating pivot 31.

.Gear 30, which also engages rack teeth formed by the row of apertures 32 in the bottom' of tube 25 has rigidly connected thereto a double gear 33 which is in engagement with a double rack bar 34 having near its rear end an upwardly projecting head which engages the plunger 19. Upon movement of the forearm 28 a lesser movement is thus transmitted to plunger 19, the ratio of reduction of movement depending upon the ratios of the diameters of gears and 33.

A sear 36 pivoted in the barrel tube at 37 is adapted to engage a. suitable notch in the head 191 of plunger 19 and to be withdrawn therefrom upon the firing movement of trigger 13 by the movement of a locking lever 66, interposed between the trigger and sear. Lever 38 is pivoted at 39 and its forward end is moved by the firing movement of the trigger into the path of movement of the end 341 of the rack bar 34. Thus the trigger is locked when the forearm 2S and rack 34 are displaced, and the rack and forearm are locked when the trigger is depressed.

The mechanism thus far described is substantially similar to that shown in my prior application above identified. The present invention contemplates certain variations and refinements on the construction previously disclosed, one of which comprises improved means for taking the gun down for storage, shipment, or convenience in carrying. To this end means are provided for quickly and easily removing the barrel and power applying assemblies from the stock and receiver assembly as a unit. Barrel assembly tube 16 and power applying tube 25, which are rigidly secured together, enter and in part lie closely adjacent to the wall of the receiver 11 (see Fig. 8). To detachably secure the barrel and power assembly in the receiver, a locking hook 40 is pivoted in the barrel tube at 41. The end of hook 40 is pressed upwardly' thru an aperture in the top of the barrel tube by a spring 411. When the barrel tube is in place in the receiver the hook receiving aperture is in alignment with a similar aperture in the top of the receiver, and the hook 40 projects into this aperture, firmly holding the assembled gun together. To take the gun down the hook 40 is pressed back into the barrel tube, and the barrel assembly moved longitudinally out of the receiver.

The present invention further contemplates the provision of a load containing magazine capable of receiving and holding in firing position any one of a number of different kinds of projectiles, such as darts, slugs or charges of small shot. To this end the shooting barrel and associated parts are constructed as follows:

The bushing 23 is secured in or to the end of a reenforcing tube 44 which fits closely within the tube 16, and has rigid or integral therewith the power unit supporting projection 27, previously mentioned. Bushing 23 is interiorly threaded to receive a threaded nipple 45 which projects from the end of an enlarged head or chamber piece 46 secured to the barrel 1.7. An :.pertured barrel tube closing cap 47 secured to the forward end of the barrel 17, comprises a flange 48 adapted for peripheral engagement with the housing tube 16, and a slightly projecting knurled edge to facilitate manipulation. The barrel may be removed by turning the knurled cap 47 to unscrew nipple 45 from bushing :23.

The chamber piece 46, which is circular in cross section and substantially fills a section of tube 44 (see Fig. 5) is slotted transversely,

ythe ends of the slot aligning with apertures thru the walls of tubes 44 and 16. A transverse slot thru the barrel assembly is thus provided, said slot being adapted to receive a magazine blocl; 50 which comprises a series of chambers 51 each adapted to receive a load to be tired. The loads may take a variety of forms, and any desired load may be placed in any chamber. A shot charge 52, a felt base slug and a dart 54 have been shown in adjacent chambers, but obviously the same or diil'erent loads can be used in any desired rotation. By moving the magazine plug thru its slot in the barrel assembly the successive chambers are in turn brought into alignment with the piston rod 22 and barrel 17, permitting the loads therein to be fired. To

accurately align the chambers with the barrel,

the rear end of each chamber is chamfered outwardly, and the chamfer 55 receives the conical end of a sleeve 56, contained in a recess in the nipple 45, and pressed forward by a spring 57 interposed between a shoulder in the sleeve and a washer 58 fixed in the end of the nipple recess. The slot is counter bored slightly to receive the conical end of sleeve 56 when the magazine block is removed (Fig. 1) and the corner of the block is beveled at 59 to facilitate depressing the sleeve when the magazine block is inserted. As shown in Fig. 1, when the gun is cocked the piston rod 22 passes thru the sleeve 56 and its coil spring 57 and terminates adjacent the side of the' slot.

It will be apparent that. the method of securing the barrel above described lends itself` readily to the rovision of interchangeable barrels. The arrel rovided with the magazine receiving cham r piece 46 may lll be readily removed by screwing it out of the proper. The slr-ot are delivered to the barrel one at a time thru aperture 63.

Fig. 7 illustrates another type of barrel provided with a tubular magazine 65 containweaves ing a spring pressed follower 66, and also provided witha nipple 67 adapted to be received by bushing 23. These and other types of barrels thus readily replace the barrel pro vided with the magazine block receiving chamber piece. The invention is, moreover, susceptible of many variations and other embodiments, all falling Within the scope of the appended claims.

What is claimed is:

1. In an air gun a barrel assembly, a stock and receiver assembly, and means for detachably securing said barrel assembly and said stock receiver assembly together comprising a member pivoted within and adapted to be projected outwardly through the wall of said barrel assembly, and means on said receiver adapted to receive said member when so projected.

2. In a take down air gun, means adapted to hold the parts of the gun in assembled relation by passinor thru apertures in juxtaposed parts,. and, to release the gun to be taken down when manually depressed out of one of said apertures.

3. In a take down air gun, means for hold- Y ing the gun assembled comprising a spring pressed member adapted to release the gun for taking down when manually depressed against the tension' of its spring.

c 4. In an air gun, a barrel, a magazine block comprising a plurality of projectile receiving chambers and ada. ted to be moved transversely of said barre to align said chamn bers successively with said barrel, a projectile propelling piston rod aligned with said barrel and adapted to enter the chamber in alignment therewith, and means for. yieldingly retaining said magazine with one of the chambers in alignment with said piston rod and said barrel` 5, In an air gun, a projectile propelling piston rod, a. magazine comprising a plurality of projectile chambers adapted to be entered by said piston rod, means for yieldingly re taining said magazine with one of its cham bers in alignment with said piston rod comprising a spring and spring follower adapted to encircle said piston rod.

6. In an air gun, a barrel comprising an enlarged chamber piece having a transverse slot therethru adapted to receive a magazine block, said chamber piece being provided with means for securing the barrel in the gun.

7. In an air gun, a barrel, a magazine housing, a barrel housing tube surrounding said barrel and spaced therefrom, means secured to said housing tube adapted to retain the barrel in place, cooperating means including said magazine housing secured to the rear end of said barrel, and means associated with the forward end of the barrel adapted to hold the barrel in spaced relation to the tube and to close the -end opening between the barrel and tube.

` 8. A magazine blocirior airguns 'compris-U ing a plurality et' separate cylindrical chambers having chamtered ends and a beveled. corner for facilitating insertion in the gun.

9. An air gun comprising a barrel housing tube, a barrel in said tube provided with a cylindrical chamber piece, a transverse magazine receiving slot in said chamber piece, and apertures in said tube aligned' with said slot.

10. In an air gun, a barrel housing, a barrel having secured thereto chamber piece having formed therein a transverse slot, a magazine block adapted to pass thru said slot, means associated with said chamber piece for securing the barrel in piace in the arrel housing, and spring means associated with said chamber piece for yieidinglg, taining said magazine block in place in said slot.

11. In an air gun, a false barrel, a true barrel, a chamber piece carried by said true barrel aligning the true barrel in the false bar rel, said chamber piece being slotted to re ceive a magazine block.

12. In an air gun, a barrei assexnhy, a

stock and receiver assembly, and means for detachably securing said barrel assembly and said stock and receiver assembly together including a spring-pressed member move-bie within and adapted to be projected outwardly through the wall oi said barrel., and means on said receiver adapted to receive said member when so projected.

13. In an air gun, a housing, a barrei having secured thereto a slotted chamber piece, a magazine block movable in the slot in said piece, and means associated with said piece for detachably securing the barrel to said housing.

14. In combination with an air gun, a housing, a barrel having secured thereto a slotted chamber piece, a magazine normally movable in the slot in said piece, means associated with said piece for detachably securing the barrel to said housing, a second barrel having a chamber piecesecured thereto, a magazine normally fiXedly associated with said piece, and means associated with said piece for detachably securing the barrel to saidhousing', said barrels being adapted for interchangeable attachment to said housing.

15. In combination with an air gun, a bai rel having associated therewith a magazine normally movable relative thereto, a second barrel having associated therewith a magazine normally immovable relative thereto, said barrels being adapted for interchange able mounting in said gun.

16. In combination with an air gun, a. barrel having associated therewith a magazine having accommodations for a plurality of projectiles of miscellaneous shapes, means Jfor selectively feeding said projectiles to the barrel, a second barrel having associated mit therewith a-magazine for spherical shot, said barrels being adapted for interchangeable mounting in said gun.

17. In an air gun comprising a barrel and a firing device in alignment therewith, a transverse slot through said barrel, a magazine block adapted to be received in said slot, movable therein, and comprising a plurality of projectile receiving chambers adapted -for selective alignment with said firing device, the construction being such that said magazine block may be moved transversely in either direction to thus align any desired chamber with said firing device at any time prior to the firing movement thereof.

CRAWVFDRD C. LOOMIS.

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