US1591756A - Compressed-air rifle - Google Patents

Description

July 6,1926.

M. GUlDOTE COMPRESSED AIR RIFLE Filed Nov. 28, 1925 3 Sheets-Sheet 1 l kfl LrlLa Maxim zzz'iazc ATI NEY July 6,1926. 1,591,756

M. GUIDOTE COMPRESSED AIR RIFLE Filed Nov. 28, 1925 3 Sheets-Shet 2 ATTORNEY WITNESS W July 6 1926.

M. GUIDOTE COMPRESSED AIR RIFLE Filed NOV. 2 1925 3 Sheets-Sheet 5 Fatentecl July 6, 1926.

PATENT OFFICE. I

MAXIMO GUIDOTE, F MANILA, PHILIPPINE ISLANDS.

COMPRESSED-AIR RIFLE.

Application filed November- 28, 1925. SeriaTNo. 72,011.

This invention contemplates the provision ofa rifle adapted to be operated by compressed air, the invention residlng in the novel construction, combination and arrangement of parts hereinafter described i and particularly pointed out in the appended claims. v

In the drawing forming part of this application, like numerals of reference indi- 1 cate similar parts in the several views, and

wherein Figure 1 is a side elevation of the rifle constructed in accordance with the present invention.

Figure 2 is a fragmentary View showing by dotted lines the active position of the reloading mechanism, and by full lines the position of said mechanism after the rifle has been fired. 20 Figure 3 is an enlarged fragmentary View partly in section showing the position of the. compressed air chamber and valve with relation to the trigger.

Figure 4 is a longitudinal section through 55 the compressed air chamber and valve which controls communication between said air chamber and the barrel of the rifle.

Figure 5 is an enlarged fragmentary view showing the position of the trigger con- 0 trolled mechanism after the rifle has been fired. j t

Figure 6 is a sectional view on line 66 of Figure 5. U Figure 7 is a view similar to F1gure 5 5 showing the arrangement of the trlgger controlled mechanism prior to the firing of the rifle.

Referring to the drawings in detail, 10 indicates the butt of the rifle, while the 0 barrel therefor is indicated at 11. Arranged adjacent the barrel is a magazine chamber- 12 for the reception of the projectiles 13, the latter being singly fed into the bore of the barrel 11 through the instrumentality 1 of a follower 14 actuated by a spring 15 arranged in a compartment formed in the chamber 12, as clearly illustrated 1n Figure'7. The follower 14 is provided with a knob or handle 16 which slides through a 1 slot 17, so that the follower can be easily and conveniently retracted against the tension of the spring 15, as the occasion may require. Each projectile 18 is fired or pro- ;jected from the rlfle through the instrumentality of a plunger 19, the latter being actuated by compressed air admitted to a tube in which the plunger 19 is mounted for sliding movement. This tube 20 communicates with a valve casing 21 clearly shown in Figure 4, and in which casing is arranged a valve seat 22 normally engaged by a valve 23. This valve sliding rod 24 about which is arranged a colled spring 25, one end of which bears against the valve, while the other end bears is carried by a against the adjacent end of the compressed air chamber 26, and is utilized to hold the valve normally seated. The valve casing is threaded into a chamber 27 arranged directly beneath the tube 20 and communicating with the latter, while the sliding rod 24 of this valve projects within the chamber 27 to be actuated by a trigger controlled mechanism in a manner to be hereinafter described. As shown in Figure 4, the compressed air chamber 26 is arranged in end to end relation with the valve casing 21, and has an opening in one end thereof to receive the sliding rod 24 of the'valve structure. This same end of the compressed air chamber 26 is also provided with openings 28 to allow the compressed air from the chamber 26 to enter the valve casing, and subsequently pass around the, valve into the tube 20, when, of course, the valve 23 is opened. The compressed air chamber 26 is equipped with a suitable valve 29, through which compressed air is adapted to be pumped into the chamber 26, as will be readily understood.

The trigger controlled mechanism above referred to includes a short rod 30 mounted for sliding movement within the chamber 27 and normally bearing against the adja cent end of the sliding valve rod 24. This rod 30 projects forwardly of the casing 27 and is adapted to be actuated by a cam 31 pivoted as at 32 and formed with a nose-like extremity 33 for a purpose to be presentlydescribed. A shaft 34 has mounted thereon a tumbler 35, the latter being formed with spaced projections 36 and 37,respectively, which projections cooperate with the noselike extremity' 33 of the cam to assist in operating the latter. The tumbler 35 is formed with a lug 38 which is connected by a link 39 with one branch of a spring 40, the latter being of substantially U-shaped s13, while the other formation with the said branch s11 susceptible of movement with relation to the other branch, indicated at 1-2.

Cooperating with the lug 38 of the-tunibler 35 is a lever 43, for holding the tumbler in the position shown 111' Figure? rifle charge, while the lever -13 is maintained in this position against the influenceof a spring by means of a lever 1'5, one end of which contacts the adjacent end of" the lever end of which bears against. the adjacent extremity it) of the trigger H. In this position of parts the spring -10is also under tension, so that when the trigger is operated'to ett'ect' a release of the tumbler 85, the limb 11 of the spring -10 functions tooperate the tumbler in the manner to-initially impart movement to thecam 81'. his cam is forcibly operatedby means of a spring 18 to slide the rod 3'.) against the rod 21 of" the valve, thereby very quickly opening'the valve to allow a charge of compressed-air to passinto the chamber 2?. and thence into the tube 20 to operate the plunger 19.

Assuming that the parts are ar angel in the manner shown in Figure '4', wherein it willbe noted that one of the projectiles 1 is arranged directly in advance or the plunger 19', it is only necessary to pull the tri er J in order to tire the rifle, orin other vords project the projectile 1S therefrom. When the trigger 47 is pulledit pushes down on the adjacent end of thelever which lever is pivoted at a-poi'nt between its ends. thereby rocking the lever in a direction to separate the lever from the tumbler it thismoment the spring it) expands, whereupon the limb 11 0f said spring'quicl-zl'y and forcibly assumes the position illustrated in Figure 5, thereby turning the tumbler in the direction of the cam 31-. As t'he't'uinl. ler is rotated inthis-direction, the projection 36 contacts the nose-like extension 01" the cam- 31', thereby turning the cam together with the assistance 01 the spring l8 against. the rod 30, which rod in turn opens the valve 23 in the manner above described',-afnd allows a charge of compressed air to find its way into the tube 20, operating the plunger 19. The position occupied' by the various parts of this mechanism, after the rifle has been fired, is clearly illustrated in Figure 5. It will be notedlin this figure that as the branch 41 of the spring stO expands, it is brought into contact with a spring 'to cushion the movement of said branch 41', and at the same time place the spring 50'under tension so that the latter will assist in returning the mechanism to the position shown in Figure 7 incident to the recharging of the rifle.

The recharging mechanism includes a hand grip 51 mounted for sliding movement on a rod 52' and connected by means of a plate 53 with a sliding arm 54:. This arm' 5 1 has one end connected with a link 55 which in turn is connected with the shaft 311' upon-which is mounted the tumbler 35, so that when the recharging mechanism is operated, it functions to rotate the shaft 3-1 inan oppositedirection; During this rotation of the shaft S the pointed projection 3'? of: the tumbler engages the nose-like extension 33 of the cam 31, and thereupon moves the cam from the position shown in Figure 5 to the position illustrated in Figure' 7. Consequently, tlie'bianch' 11 01" the U-shaped'spring 1-0 is also returned from the position shown in Figure 5 to-the' position shown in Figure 7, and the lever 1 5 again arranged to engage the lug 38 ot' the-tumbler to maintainthe'parts in-the position shown in Figure I. lVhile these parts are being arranged in the manner just; described, the plunger 19' is also being retracted intothe tube 20'to theposition which it occupies in Figure 7, and this is accomplished by the means clearly sliown'in Figure 2. F or tl s purpose i employ a bell crank lever which is pivoted as at 56, and which lever has its short branch 57 disposed to he engaged by a member carried'b v' the plunger 1)when the rifle has been fired. lVhen' the rille is charged the bell crank lever assumes the position shown by dotted lines in Figure 2, and when the rifle is fired, the member carried by the plunger 19ei gages the short branch 51' of said bell crank lever and moves it to the position shown by full. lines iuFig- 1116'2. The movement otthis lever in this direction is cushioned by a spring 59-carricd by the other branch 60' of said lever and adapted to contact a stop-pin 61.. Also-carried by the shaft illupon which the tumbler 35 is mounted is a finger 62; which cooperates with the branch (30 of the bell crank lever to retract the plunger 19 while the rifle is being rechargedin'the'manner above described. hen the rifle is tired-this linger 62 is moved to the position it occu ies in full lines in" Figure being limitecin its movement iii-this direction by astoppin' 63. Now, when the recharging mechanism is operatedxthe'sha'tt 3 1 is turnecb in the'lnanner above described and during this rotation of the shaft 31- the'tinger G2 is brought into contact with'the adjacent branch tlO of' the bell cranlt lever, rocking the. latter upon its pivot 56, and shiftingsaid'lever'to the position" shown-by dotterf lines in Figure 2, during which operation the plunger 19" is retracted't'rom the position shown in Figure 5 to the position it occupies in Figure Y; It will be notcduponinspection of Figure'ii that the compressedair chamber and valve casing are referably arranged within the butt lO'of tie rifle.

lVhil e it is believed that from the fore going description the'nature'and advantages of the invention will be readily apparent, I

low

desire to have it understood that I do not limit myself to what is herein shown and described, Tand that such changes may be resorted to when desired as fall within the scope of what is claimed.

Having thus described the invention, What is claimed as new, is

1. In a rifle of the character described, a barrel, a magazine, means for singly feeding projectiles from the magazine to said barrel, a compressed air receiving chamber, a tube establishing communication between said chamber and barrel, a plunger operating in said tube, a valve controlling said communication and including a sliding rod, means for opening said valve and including a cam, a tumbler designed to operate said cam, means for operating said tumbler, means including a trigger for normally holding said tumbler cocked, and means for reloading the rifle.

2. In a rifle of the character described, a barrel, a magazine, means for singly feeding projectiles from the magazine to said barrel,

a compressed air receiving chamber, a tube establishing communication between the chamber and barrel, a valve controlling said communication, a plunger adapted to be actuated by compressed air and operable in said tube and barrel, means for opening said valve including a cam, resilient means for forcibly operating said tumbler, trigger actuated means for eflecting a release of said resilient means, and means for reloading the rifle.

3. In a rifle of the character described, a

barrel, a magazine, means for singly feeding projectiles from the magazine into the barrel, a compressed air receiving chamber, a tube establishing communication between said chamber and barrel, a plunger slidable in said tube and barrel, and adapted to be actuated by compressed air, a valve controlling communication between the chamber and tube, means including a trigger for opening said valve, and means for resetting the trigger actuated means and retracting said plunger Within the tube for the purpose specified.

4. In a rifle of the character described, a barrel, a magazine, means for single feeding projectiles from the magazine into said barrel, a compressed air receiving chamber, a tube establishing communication between said chamber and barrel, a plunger mounted to slide within the tube and barrel, a valve controlling communication between the chamber and tube, trigger actuated mechanism for opening said valve, and means for resetting said trigger actuated mechanism and retracting the plunger to its inactive position, and including a bell crank lever, having one branch disposed in the path of movement of said plunger, a member carried by the plunger and adapted to engage said lever When the plunger is operated in one direction, and a movable finger adapted to engage the other branch of said lever and operate the latter to retract the plunger as described.

In testimony whereof I aflix my signature.

MAXIMO GUIDOTE.

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