US2445087A - Gun sight - Google Patents

Description

33-249. OR zmamoa? SR July 13, 1948. E. B. ROGERS 2,445,087

GUN SIGHT Filed Oct. 21, 1946 I JNVENTOR, EARL B. ROGERS A T TORNE Y5 Pafenfed July 13, 1948 his iii? UNITED STATES PATENT OFFICE This invention relates broadly to un sights and more specifically to improvements in brackets for mounting telescopic sights on rifles or the like.

The most suitable location for a telescopic sight on target and hunting rifles is immediately over the breech. Many such rifles are loaded from above, however, and the sight must either be offset or be mounted for displacement from the normal position to permit the loading of the gun.

When in use, the sight must be precisely and rigidly located and aligned with respect to the axis of the barrel.

This invention has as its principal object the mounting of a gun sight with extreme accuracy immediately above the breech of a rifle, with provision for convenient displacement of the sight to facilitate loading.

Other objects and advantages, more or less ancillary, will be apparent from the description herein of the preferred embodiment of the invention.

Referring to the drawings:

Fig. 1 is a side elevation of a gun and sight incorporating the invention;

Fig. 2 is a view axially of the barrel from the butt illustrating the displacement of the sight for loading;

Fig. 3 is a view similar to Fig. 2 with the sight in operative position;

Figs. 4 and 5 are longitudinal sectional views of the sight bracket in alternative positions of adjustment;

Fig. 6 is a perspective view of the fixed member of the bracket;

Fig. 7 is a perspective view of the movable member; and

Fig. 8 is an enlarged sectional view of a portion of the sight bracket assembly, the section .being taken on a plane indicated on the line 88 in Fig.5.

Referring to Figs. 1 to 3, the invention is illustrated as applied. to a conventional rifle having a barrel ll', stock l2, breech l3, bolt I4 and bolt operating lever I 5.

A telescopic sight it, of any desired type, is mounted superjacent the gun breech, by means of the improved bracket of the invention, by which the sight may be shifted from its normal position illustrated in Figs. 1 and 3 to a laterally displaced position, as shown in Fig. 2, to provide for the insertion of a clip I! of cartridges.

The sight bracket per se comprises a member 2i fixed to the gun, as by machine screws 22, passing through holes in lugs 23 extending from the member. The tubular body 24 of the member forms a bearing for rotation of a cylindrical member 25 closely fitting therein, and having two ears 26 to which the telescope may be secured by straps 21.

The ears extend through a longitudinal slot 28 in the tubular body and are formed with forwardly tapered outer faces 29, in the lower portions thereof, engageable respectively with similarly tapered side wall portions 30 of the slot 28. The tapered portions of the slot are disposed adjacent the forward ends of a pair of enlarged recesses 3| spaced for the reception of the ears 26 when the cylindrical member 25 is retracted and the sight is rotated to its inoperative position. The tapered or wedge portions 29 of the ears and complemental walls 30 of the slot are formed with a non-seizing angle so that the member 25 may be readily retracted when it is desired to adjust the sight in its inoperative position. The forward end of the slot 28 is disposed to provide a clearance for the end of the foremost ear 26 so that a full wedging action of the tapered I portion of the ear may be assured.

To swing the sight to one side, the telescope and movable bracket member 25 are drawn toward the butt of the gun, aligning the ears 26 with the two lateral enlargements 3| of the slot 28. The slot 28 is chamfered at 32 adjacent the forward edges of the recesses 3| to facilitate reentry of the cars 26 into the tapered seats 30 after completion of the loading operation.

A compression spring 34 is retained in an axial bore 36 in the movable member 25 by a plug 31 threaded into the body 24 of the stationary member. The parts will thus tend to remain in the position of Figs. 3 and 5 with the spring extended. When the sight is shifted to the position illustrated in Figs. 2 and 4, the spring offers suflicient frictional resistance to prevent accidental dislocation thereof.

It will be apparent from the foregoing that a liberal bearing surface is provided between the sleeve 24 and the cylindrical body 25, that perfect stability of the sight will be afforded by the spring loaded wedged engagement of the ears within their tapered seats, that the sight will register in perfect alignment under the influence of the straight rearward edges of the ears and contiguous parallel rearward wall of the slot 28 when the sight is brought into operative position and that the alignment of the sight will remain constant irrespective of wear.

Removal of the sight and upper part of the bracket may be readily accomplished by unscrewing the plug 31.

Adjustment of the sight for ballistic corrections and the like may be accomplished in the usual manner.

The line of sight may be adjusted with reference to the gun axis with assurance that the position of the upper, movable portion of the sight bracket is determined accurately whenever the sight is in its operating position.

Although the foregoing description is necessarily of a detailed character, in order that the invention may be completely set forth, it is to be understood that the specific terminology is not intended to be restrictive or confining, and that various rearrangements of parts and modifications of detail may be resorted to without departing from the scope or spirit of the invention.

What is claimed is:

1. In combination, a gun; a bracket fixed to the gun and providing an extending internal cylindrical bearing surface, the bracket being formed with L-shaped slots having tapered sections thereon; a sight support comprising a body rotatably and reciprocably supported within the bearing surface and comprising ears extending through the slots, tapered portions on said ears and a gun sight mounted on the ears; the sight being held against rotation during use of the sight by engagement of the tapered portions of the ears with the tapered portions of the slot and being rotatable about the bearing axis upon reciprocation of the sight to align the ears with the other portion of the slot. 2. In combination, a gun; a bracket fixed to the gun and providing an extended internal cylindrical bearing surface, the bracket being forced with L-shaped slots, tapered seats in portions of said slot, at sight support comprising a body rotatably and reciprocably supported within the bearing surface and comprising ears extending through the slots, tapered faces on said ears, a gun sight mounted on the ears, the sight being held against rotation during use of the sight by engagement of thetapered faces on said ears with the tapered seats in the slot and being rotatable about the bearing axis upon reciprocation of the sight to align the ears with-the other portion of the slot; and means resiliently urging the tapered faces of the ears into the tapered seats.

3. In combination, a gun; a bracket fixed to the gun and providing an extended internal cylindrical bearing surface, th bracket being formed with L-shaped slots, wedge seats in wall of said slot, at sight support comprising a body rotatably and reciprocably supported within the bearing surface and. comprising ears extending through the slots, wedge faces on said cars, a gun sight mounted on the ears; the sight bein held against rotation during use of the sight by engagement of the wedge faces on the ears with the wedge seats in the slot and being rotatable about the bearing axis upon reciprocation of the sight to align the ears with the other portion of the slot; means resiliently urging the wedge faces of the ears into engagement with the wedge seats in the slot; and removable means closing the end of the bracket and affording an abutment for the resilient means.

4. A gun sight bracket comprising a tubular member adapted to be mounted on the gun; a cyindrical member rotatable and reciprocable in the tubular member; ears extending from the cylindrical member through slots in the tubular member, tapered portions on said ears, the ears being adapted for the mounting of a gun, sight,

the slots being formed withtapered portions for the wedged support of the ears in an upright position, and with adjacent portions, into which the ears may be supported in a lateral position, and means biasing the cylindrical member into the other position.

5. A gun sight bracket comprising a tubular member adapted to be mounted on the gun, a cylindrical member rotatable and reciprocable in the tubular member, ears extending from the cylindrical member through a slot in the tubular member, the outer face of said ears being tapered, the ears being adapted for the mounting of a gun sight, the slot being formed with portions aifording clearance for the ears upon rotation and retraction of the tubular member and the outer wall of the slot adjacent the clearance portions being tapered for the reception of the tapered faces of the ears.

6. A gun sight bracket comprising a tubular member adapted to be mounted on the gun, a cylindrical member rotatable and reciprocable in the tubular member, ears extending from the cylindrical member through a slot in the tubular member, the ears being adapted for the mounting of a gun sight, a wedge face on said ears, the

slot being formed with portions affording clearance for relative rotation of the members, and with adjacent wedge fac portions, into which the ears may be seated, and removable means closing the end of the tubular member adapted to retain the cylindrical member therein.

7. A sight bracket comprising a tube provided with means for mounting it on a gun, the tube having a slot extending from one end nearly to the other; forwardly tapered portions therein, a cylindrical body fitting in the tube, forwardly tapered ears in the slot, engageable with the tapered portion of the slot and normally preventing relative rotation of the tube and body; the tube being cut away to widen the slot to permit relative rotation upon alignment of the ears with the widened portions of the slot; the ears being adapted for mounting a gun sight thereon.

8. A sight bracket comprising a tube provided with means for the support thereof upon a gun, the tube having a slot therein terminating adjacent one end thereof; a cylindrical body in the tube, ears thereon engaged in the slot, the ears being adapted for mounting a gun sight thereon, the inner walls of the ears and slot being parallel, the outer walls of the ears and adjacent portions of the walls defining the slot being tapered forwardly, portions of the walls defining the slot rearward the tapered portions being cut away to widen the slot and permit relative rotation upon alignment of the ears therewith; resilient means biasing the tube reciprocatively and tending to maintain the tapered walls of the ears in wedged engagement with the tapered walls of the slot and removable means closing the end of the tube to provide an abutment for the resilient means and retain the body in the tube.

EARL B. ROGERS.

REFERENCES CITED Great Britain 1937

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