US2460380A - Gun mount - Google Patents

Description

D. EDGAR Feb. L 1949.

GUN MOUNT Filed Oct. 30, 1945 I |J\l l l I I l l I I l II Patented Feb. l, 17949 UNITED STATES PATENT QFFICE Shoe Machinery Corporation, Flemington,

N. J., a corporation of New Jersey Application October 30, 1945, Serial No. 625,528

2 Claims.

My invention relates to means by which a gun may be adjustably mounted upon a support, such as a turret.

It is an object of my invention to improve the mounting means of the gun so that but relatively little space will be required on the gun support for the members comprising the mounting means and the need for exact relationship between the members for their proper functioning will be eliminated, thus simplifying the construction of the members. This object is attained by pivoting a block on the gun and pivotally joining a link to the block, which link has rotatable thereon about an axis perpendicular to the axes of the pivots between the block and the gun a member rotatably mounted also on the support for pivotal movement about an axis parallel to said axes, means being provided for moving said member'longitudinally of its connections with the support to adjust the position of the gun.

In the accompanying drawing illustrating a particular embodiment of my invention,

Fig. 1 shows, in side elevation, two guns, each of which is carried by my improved mount;

Fig. 2 is an enlarged View, partially in side elevation and partially in vertical section, of the mounting at the rear of one of the guns; and

Fig. 3y is a section on the line III- III oi Fig 2.

Considering one of the two guns G, the mounting being the same for both, it is carried upon the horizontal walls 6| of a housing 1| attached to the vertical wall 60 of a turret. The gun must not only be held in a normally fixed position upon the walls 8l, but must also be capable of being bore-sighted, or arranged in the correct horizontal and vertical angles to correspond to an unillustrated sight upon the turret. It is carried in a cradle 216, which may be considered as a part of the gun. To the under side of the forward extremity of the cradle the yoked head 211 of a spindle 218 is pvoted. The spindle passes loosely through a sleeve 219 threaded into a vertical opening in the housing-wall 6I. On the sleeve is a lock-nut 280 for engagement with the housingwall. When the sleeve is rotated, by an enlargement 28| upon its upper end on which the head of the spindle rests, it will either raise the forward end of the cradle or allow it to descend, the muzzle of the gun moving similarly in elevation.

To the cradle near the rear is connected means for permitting the vertical movement just described, and also for adjusting the gun-muzzle horizontally in azimuth. Pivoted at 282 about an axis extending laterally of the gun between lugs 284 depending from the cradle, is a block 286 having opposite trunnions 288, 288, the common axis of which lies longitudinally of the gun. On these trunnions hang a pair of plates 290, 290, at the inner sides of which are opposite shoulders 292 and which are secured to each other by bolts 2353, 291i. The two plates, thus attached, form a unitary link, which may be divided for assembling the mount. rIhe shoulders support a headed shank 296 passing through an opening between the plates and having, below these, a horizontal lateral extension 298. The extension is provided at its outer ends with alined, conical recesses 300, 300, the axis of which may lie parallel to that of the pivots 282. The shank furnishes one portion of a pivot for the extension at right angles to the pivots at 282. Into the recesses lit the ends of screws 362, 302 threaded through lugs 304, 304 upon the housing-wall 6I.

Opposite rotation of the screws swings the muzzle of the gun horizontally, the pivotal rotation of the spindle 218 in the sleeve 218 and of the shank 296 and its extension upon the plate-shoulders 282 permitting this. The pivoting of the shank accommodates the rectilinear movement of the screws 302 to the arcuate movement of the pivots 282 about the axis of the spindle 218. When the muzzle is moved vertically by adjustment of the sleeve 219, the rear of the cradle swings correspondingly by virtue of the pivoting of the cradlelugs 28e' at 282 and of the extension 298 upon the screws 302. The freedom of the link- plates 290, 290, with the block 28S, to move about their upper and lower lateral pivotal connections provides for the travel of the pivots 282 along a curved path while the sleeve 219 is rising vertically. It further prevents cramping during this vertical adjustment, if the axes of the pivotal connections at 282 and 302 do not lie in parallel planes. This maybe due to poor machining or deformation in use.

It will be seen that all the mounting elements are readily manufactured with su'icient accuracy and easily assembled; that both longitudinally and laterally of the gun they occupy little space; and that their character and arrangement is such that they will remain effective under much of the rough usage to which a gun naturally is subjected.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a gun mounting means for connecting a gun to a support, a block rotatable about pivots on the gun, a link pivoted on the block, a member rotatable upon the link about an axis at right angles to said block pivots and pivoted to the supshank having at its upper end a head resting upon m the shoulders of the plates and at its lower end? a lateral extension, and screws threaded in the support and engaging in recesses in opposite sides of the extension, whereby rotation of the: screws' moves the gun longitudinally of the screws;

DAVID EDGAR.

4 REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Number Name Date Green May 6, 1930 -Hofstetter Deo. 19, 1933 Martin May 30, 1944 FOREIGN PATENTS Country Date Great Britain Jan. 20, 1921 Germany Aug. 26, 1920

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