US 2667815 A
Description (OCR text may contain errors)
Feb. 2, 1954 v, s o 2,667,815
COMPENSATOR FOR RIFLES Filed March 4, 1950 2 Sheets-Sheet 1 //\/z/&/\/ TU VERNON L. STRONG EVW ,4? 7- TE A/EV Feb. 2, 1954 v. L. STRONG 2,667,815
COMPENSATOR FOR RIFLES Filed March 4. 1950 2 Sheets-Sheet 2 nv/ew TUE VERNON L. STRONG ,4 TTUFQ NEW Patented Feb. 2, 1954 2 Claims.
This invention relates generally to firearms and particularly to a compensator for rifles.
The main object of this invention is to provide an inexpensive recoil absorbing sound deadening compensating device which may be readily attached to the muzzle of a rifle and which will in no way detract from the efiiciency of the rifle.
I accomplish this and other objects in the manner set forth in the following specification as illustrated by the accompanying drawings, in which:
Fig. 1 is a side elevation of a rifle with the device in place.
Fig. 2 is a fragmentary view of the threaded end of a rifle muzzle.
Fig. 3 is a section taken along the line 33 in Fig. 1.
Fig. 4 is a section taken along the line 4- 3 in Fig. 3.
Fig. 5 is a section taken through a multiple unit.
Fig. 6 is a side elevation of a rifle showing a modified form of the compensator.
Fig. 7 is a fragmentary perspective view showing the device illustrated in Fig. 6 in place with a portion broken away in section.
Fig. 8 is a section taken along the line 8-8 in Fig. 7.
9 is a transverse section taken along the line 5 Fig. 8.
Li as numbers of reference refer to the same or similar parts throughout the several views.
Referring in detail to the drawings there is shown in Figs. 1 to 5, inclusive, a rifle l whose barrel ll is turned down and provided with an external thread [2.
Referring particularly to my invention, as shown in Fig. 3, it consists of a bushing I3 which is threaded on the portion 12. The bushing I3 has an externally threaded portion [4 whose interior surface l flares outwardly to the rim 5%. The flange ll forms a shoulder for the threaded portion It.
On the threaded portion H3 is mounted a cylindrical internally threaded sleeve l8 whose head is is slightly undercut on its outer side 29 and which is provided with a plurality of perforations 2! which diverge somewhat from the axis of the rifle bore. The inner side 22 of the head is is rounded, as shown, and terminates at the hub 23 which forms one end of the compensator barrel 24 whose bore 25 is of a size to permit a bullet (not shown) to pass freely therethrough.
Around the barrel 24 is formed a flange 26 2 whose side 2! is parallel with the side 28 of the head [9.
The bottom 23 of the groove 29 formed between the sides 26 and 21 is normal to the sides. The holes 2| communicate between the chamber within the sleeve is and the groove 29.
In the operation of the compensator, the bullet passes from the barrel ll through the compensator barrel. A portion of the expanding gases pass through the holes 2! and are impinged against the face 21, thereby absorbing a large portion of the recoil.
wing to the fact that the groove 29 flares outwardly, the sound of the gun is directed for- 7 wardly and outwardly instead of rearwardly as is common in most recoil devices in which the noise is directed to the head of the rifleman.
The parts it and I8 may be made integral if desired but, if made separate, the manufacture is simplified and the fitting of the compensator to the individual rifle is expedited.
In the form shown in Fig. 5, two of the devices are placed in tandem. The construction is the same as in Fig. 3 except that the end 3| is made like the end 14 to permit assembling the units in tandem.
In the form of the device shown in Figs. 6 to 9, inclusive, the same principle is employed except the gases are deflected inwardly instead of outwardly, but it will be noted that the deflection is not normal to the axis of the bore or backwardly but slightly in a forward direction.
Here the bushing I3 is used as a base and the internally threaded shell 32 is provided with a hub 33 having a central bore 5 3 and a plurality of outwardly turned holes 35 whose discharged gases are directed against the inturned flange 38 whose inner face 37 slopes forwardly to the bore axis.
It will be noted that in the first described form of the device the gas is spread outwardly and in Fig. 9 it is converged inwardly. In both cases the gas is turned forwardly of the transverse plane along which it starts to expand; that is, just outside of the muzzle of the rifle.
1. A compensator for rifles comprising in combination a bushing having an internally threaded opening at one end, said opening flaring outwardly toward the opposite end, and having an external thread formed on said opposite end, a sleeve threaded on said opposite end, a compensator barrel forming a closure for said sleeve, said barrel having an encircling groove, the sides of which are parallel and forwardly inclined and the bottom of said groove being normal to the sides thereof, the rearmost side of said groove having a plurality of outwardly inclined ports communicating with the interior of said sleeve.
2. A compensator for rifles comprising a sleeve having a compensator barrel at one end thereof and an internally threaded chamber at the other end thereof, said barrel portion having a groove formed around same, the sides of which are parallel and sloping forwardly, the rearmost side of said groove having a plurality of inwardly sloping ports communicating with the interior of said sleeve, said ports being joined by a concave inner side and a bushing forming a plug for said sleeve, said bushing having an outwardly flared forward end.
VERNON L. STRONG.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,128,243 Green Aug. 30, 1938 2,191,484 Hughes Feb. 27, 1940 2,274,239 Hughes Feb. 24, 1942 2,457,802 Bauer Jan. 4, 1949