US2073755A - Firearm accessory - Google Patents

Description

March 16, 1937. F. W. PoATE 2,073,755

FIREARM ACCESSORY Filed July l1, 1934 BYQIE I l47' TOR/VE Y Patented Mar. 16, 1937 rATENT OFFICE FIREARM ACCESSORY Frederick William Poate, Shanghai, China, as-

signor to Luther Samuel Moore, Newtonville,

Mass. y

Application July 11, 1934, Serial No 734,595

4 Claims.

This invention relates to firearm accessories and particularly to a novel type of mount adapted to be secured to the barrel of a firearm and, when in use, to be pressed against a supporting sur- 5 face disposed in a plane substantially normal to the direction of re, whereby to absorb both the upward and rearward components of the shock of recoil.' Y

It has been common heretofore to steady the barrel of a firearm during fire either by the use of tripods, carriages or other suitable sturdy supports constructed for heavy ordnance or, in lighter rearms, by the simple expedient of resting the barrel on any convenient support. So

i5 far as I am aware, however, there has not been available heretofore a steadying and shock absorbing device which is practical for use with lighter firearms such as revolvers, automatic rifles and the like, and which not only does not add materially to the weight of the firearm, but which also is so Iadapted for co-operation with any convenient xed support as to absorb both the rearward and upward components of the recoiling force.

It is my purpose to provide such a recoil absorbing device and I have found that if the firearm barrel be not only supported from beneath but also be secured in a direction longitudinal of the barrel, the recoil, both in its vertical and horizontal components, will be effectively absorbed. To that end it is the primary object of my invention to provide a device which is attachable preferably to the forward end of the rearm barrel and which is adapted to co-operate with a fixed support presenting supporting surfaces in planes both normal 'and parallel to the direction of re, whereby eifectively to support the barrel and to Secure it against longitudinal movement.

I have found further that if the longitudinal securing be effected by drawing the barrel in a direction opposite to the direction of re, or toward the rear of the firearm, and bracing it in that direction against a vertical support, the combined rearward and upward components of the recoil will act to jam the gun barrel still more firmly against the supporting surface which is normal to the axis of the barrel and thereby effectively absorb the recoil and prevent any material deflection of the barrel from its target. In this manner I obviate the necessity for re-airning before each shot as has heretofore been necessitated by the deflection ofthe barrel incident to the recoil and I thereby materially enhance the accuracy of fire particularly in repeating re- (Cl. L12---1) arms in which the discharges are in rapid successlon.

These and further objects and advantages of my invention will appear from a more detailed description thereof taken in connection .with the accompanying drawing in which:-

Fig. 1 is an elevation view showing my device in use, secured to the barrel of a rifle;

Fig. 2 is an enlarged vertical sectional view on the line 2 2 of Fig. l;

Fig. 3 is a vertical sectional view on the line 3 3 of Fig. 2; an-d Fig. 4 is a perspective View of the elements of my novel mount shown in position to be assembled.

As indicated in the drawing and particularly Fig. 4, my device comprises a pair of similarly shaped clamping members indicated generally at I and 2, each of which members is provided with a semi-cylindrical bore 3 which, when the parts are assembled, will conform generally to the external cylindrical curvature of the barrel of the rearm to which it is to be attached. The separable clamp members I and 2 are preferably shaped substantially as indicated and they support, preferably integrally therewith, the shock absorbing portions 'I and 8, each of which is also provided with a semi-cylindrical bore 5 which extends through the face 6 of each member but terminates short of the opposite face of the member in a wall I0 preferably integral with the member and closing that end of the bore. The radius of curvature of the semi-cylindrical bores 5 is preferably in substantially the proportion indicated and when the separable members I and 2 are assembled as indicated in Fig. 2, the combined, juxtaposed recesses 5 form a cylindrical chamber to receive and secure a plug I I which is preferably composed of resilient material having a high coeicient of friction as, for example, rubber. Screws I2 cooperate with the aligned screw threaded orifices I3 to secure the sections of the clamp and shock-absorbing members together in an obvious manner.

In use the screws I2 are loosened or removed as required and the clamp members are positioned on the forward end of the barrel 2li of the firearm, as indicated in Fig. 1, and with the wall portions Ill of the shock absorbing members 1 and 8 facing forwardly. The resilient plug II is inserted in the lower, juxtaposed recesses5 from the rear, with the end 2I of the plug abutting the now combined end walls I0 of the recesses, and in this manner a substantial portion 22 of the plug will protrude outwardly beyond the faces 6 of the members I and 8 to present a buffer surface which is substantially normal to the direction of fire, or may be so inclined that lower edge of buffer is the first to engage the front surface of support.

When it is desired to fire the gun the barrel is rested on any convenient support 30 which preferably presents a supporting surface 3| lying in a substantially horizontal plane and a second supporting surface 32 in front of the support 30 and in a plane substantially normal to the direction of fire. The firearm is then drawn rearwardly until the surface 22 of the resilient plug Il abuts the surface 32 and the firearm is continually pressed in this manner against the sup port 30 during fire.

It will be apparent that the rearward component of the recoil will be effectively absorbed by the support 30 and resilient cushion 22 which thereby act to cushion the shoulder of the firer against impact. It will also be noted that the rearward horizontal component of the recoil will act to increase the pressure between the support 3U and the frictional buffer surface 22 at the instant when the barrel tends to turn upwardly with the result that any material upward deflection is effectively restrained. 'I'he firearm does not therefore require re-aiming before the next shot is fired and repeating firearms can be discharged in rapid succession without the inaccuracy which has heretofore resulted from upward kicks of the barrel at each shot.

'I'he preferred embodiment of my invention herein described is subject to vartiation within the spirit of my invention which is to be limited only as indicated in the appended claims.

I claim:

1. As a firearm accessory, a device for absorbing the shock of recoil comprising attaching means adapted to be secured to the firearm barrel and a resilient medium projecting from said attaching means, said attaching means being recessed to receive and grip said resilient medium to present a buffer surface adapted to abut .the forward surface of a support positioned to the rear of said attaching means.

2. As a firearm accessory, a device for absorbing the shock of recoil comprising separable clamp means bored internally to conform to the external curvature of the firearm barrel and adapted to be secured to said barrel, said clamp means having a portion projecting therefrom, and shock absorbing means extending from said portion rearwardly with respect to the muzzle of the gun, to abut the forward surface of a support positioned to the rear of said projecting portion, said projecting portion including a cupped recess and said shock absorbing means comprising a resilient medium received in said recess.

3. As a firearm accessory, a device for absorbing the shock of recoil comprising attaching means adapted to be secured to the firearm barrel and a resilient medium projecting from said attaching means, said attaching means being recessed t0 receive and grip said resilient medium which projects therefrom and presents a buffer surface, in a plane substantially normal to the line of fire and rearwardly with respect to the muzzle of the gun, to abut the forward surface of a support positioned to the rear of said attaching means and thereby translate the shock of recoil of the firearm to said forward surface of the support.

4. A firearm accessory for absorbing the shock of recoil comprising attaching means adapted to be secured to the firearm barrel and shock absorbing means projecting from said attaching means and presenting a buffer surface adapted to abut a supporting surface substantially normal to the line of fire, said buffer surface being presented rearwardly with respect to the muzzle of the gun and being so inclined from a plane normal to the line of fire that the lower edge of the buffer surface is the first portion of said buffer surface to engage the supporting surface.

FREDERICK WILLIAM POATE.

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