US 1757244 A
Description (OCR text may contain errors)
May 6, 1930. s., G. GREEN l 1,757,244
MOUNT FOR GUNS Filed March 5. 1928 Samuel E -Breen Cltlfoamm Paten-ted May 6, 1930 UNITED STATES sAmrEr. G. GEEEN, or GRAY, GEORGIA MOUNT FOR GUNS Application led March 5, 1928. Serial No. 259,299.
(GRANTED UNEEE TEE Aer or manon s, 1883, As AMENDED Aran. ao, 192s; 37o o. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.
The subject of this invention is a mount for The principal object of the invention is. to
provide a mount for rapid lire guns in which a recoiling cradle carrying the rigid frame of the gun is so 4arranged with respect to its support that the center of thrust 1s transmitted intermediate the point of application to the support and the support trunnion. and substantially coincident with the recolling cradle.
Another object is to provide a recoil and counterrecoil mechanism i'n which the points of action on recoil and counterrecoil are suby stantially co-incident.
zo A novel arrangement is further provided whereby the recoil cradle may be displaced vertically and horizontally with respect to the support in order to angularly diverge each gun in relation to other guns carried by 26 the mount.
With the foregoing and other objects in view, my invention resides in the novel arrangement and combination of parts and in" the details of construction hereinafter described and claimed, it being understood that changes inthe precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without depart ing from the spirit of the invention.
A practical embodiment of the invention is illustrated in the accompanying drawings, wherein:
Fig. 1 is a view in side elevation of the improved mount; e v 'Y Fig. 2 is an enlarged plan view of Fig. 1;
Fig. 3 is an enlarged v1ew in side elevation partly in section;
y Fig. 4 is a sectional view on the line 4 4 of Fig. 3; and
Referring to the drawing by numerals of reference:
The invention is illustrated in connection 5o with a multiple gun mount similar to that Fig. 5 is a detail view of the elevation indi-` disclosed in copending application Serial No. -154,266 of December 11, 1926. This mount comprises essentially a rotatable top carriage 6 formed with a pair of enlarged bearings 7 receiving a trunnion 8 on which is mounted a support or cradle 9 consisting of a relatively thin' flat plate having at its rear end a counterweight 10. The cradle 9l is moved in elevation about the trunnion 8 by means of the mechanism 11.
The cradle 9 is arranged and dimensioned to carry a number of machine guns evenly distributed and all attached in a similar manner so as to be capable of being angularly diverged with respect to one another for the purpose of varying the zone of fire..
The mounting for the individual guns comprises a base frame 12 overlying the cradle 9 and provided'at its rear end with depending brackets 13 by means of which it is attached to the cradle through a trunnion 14 disposed forwardly and below the cradle trunnion 8.
The forward end of the base frame is formed with a transverse opening 15 in which is placed a bushing 16 for receiving a pivoted pin 17 carried by a yoke 18. The stem 19 of the yoke passes through and is supported byy a socket member 2O which is threaded in a tubular extension 21 ixed to the under side of the cradle 9. The socket member serves asv an elevating screw for the yoke whose displacement may be measured by means of a pointer 22 which reads against an up-right scale 23 on the cradle 9. A nut 24 is threaded to the lower end of the stem of the yoke for holding it in place and is loosened when it is desired to elevate the socket member without rotating the yoke.
Resting on the base frame 12 is a guide plate 25 attached forwardly by means of a vertical pivot 26 and formed at its rear end with a gear segment 27 meshing with a worm 28 carried by the base frame 12 whereby the plate 25 may be laterally displaced angular amounts measurable by means of the scale 29 and index 30.
Reciprocally mounted on the guide plate is a sleigh or recoil cradle 31 formed with apertures 32, 33 and 34 for the reception of pins 35 whereby the gun is rigidly attached.
The apertures 32-33 are employed with the .30 caliber gun andthe apertures 32--34 are employed with the .50 caliber gun. The guide plate 24 is cut-away as at 36 to facilitate insertion of the rear pin 35 and allow-for its movement with the recoil cradle.
The recoil and counter-recoil mechanism comprises a pair of spaced rods 37 each mounted on upright brackets 38 on the guide plate 25 and surrounded by a pair of helical springs 3.9-40. The springs on each rod are supported by a lug 41 on the recoil cradle which lug 41 embraces the rod 37.
The recoil spring 39 being thus confined between the lug 41 and the rear bracket 38 will act on the bracket 38 when being energized and as this bracket is positioned directly above the base frame trunnion 14 as shown in Fig. 3 the center of thrust will lie substantially in the plane of the recoil cradle and will be transmitted to the gun mount at a point forwardly and below the cradle trunnion 8.
In order that the action of the buffer spring may also be taken by the rear bracket the rod carries a nut 42 on its rear end for-engagement against the rear ,face of that bracket. The forward end of the rod carries a threadedly adjustable sleeve 43 which is slidable through the front bracket 38 and serves as a seat for the buffer spring, the other end of which is confined by the lug 41. As a consequence ofA this arrangement the forward movement of the lug 41 during the return of the recoil cradle into battery will be opposed by the buffer spring whose compression tends to move the rod forwardly and thus transmits its action through the nut 42 to the rear bracket 38.-
It will thus be seen that in the design of the mount consideration has been given to all of those factors which effect stability of lthe mount and disturb its ellicient operation.
1. In a mount for guns, a rotatable top carriage, a cradle trunnioned thereon, a base frame trunnioned to the cradle forwardly of the cradle trunnion, means for elevating the forward end of the base frame, a guide plate overlying the base frame, a vertical pivot connecting the forward portions of the guide lplate and base frame, means carried by the ase frame for traversing the guide plate about its pivot, a recoil and counter-recoil mechanism carried by the guide plate and a recoil cradle slidable on the guide plate and connected to the recoil and counter recoil mechanism.
2. In a mount for guns, a rotatable top carriage, a cradle trunnioned thereon, a verticall and laterally adjustable base trunnioned to the cradle forwardly and below the cradle trunnion, spaced sets ofy upright brackets carried b the base, the rear brackets being in line with the base trunnion, a rod in each set of brackets, a bushing on the forward end of each rod slidable through the forward bracket, a nut on the other end of each rod engageable with the rear face of the rear bracket, a recoil and a buffer spring on said rod confined between the biishing and the rear bracket, a recoil cradle slidable on the base and spaced lugs on said cradle each surrounding a rod and separatingthe springs.
3. In a mount for guns, a rotatable top carriage, a cradle trunnioned thereon, a base trunnioned to the cradle forwardly and below the cradle trunnion, spaced sets of upright brackets carried by the base, a rod in each set of brackets', a `bushing on the forward end of each rod slidable through the forward bracket, a nut on the other end of each rod engageable with the rear face of the rear bracket, a recoil and a bulfer spring on said rod confined between the bushing and the rear bracket, a recoil cradle slidable on the base and spaced lugs on said cradle, each surrounding a rod and separating the springs.
4. In a mount for guns, a base, spaced sets of upright brackets carried by the base, a rod in each-.set of brackets and having an en* larged end engageable with the rear face of the rear bracket, a recoil cradle slidable on the support, a lug on each side of the cradle and surrounding one of the rods, a recoil spring on the rod confined between the cradle lug and the rear bracket and a buffer spring on the rod confined between the cradle lug and the front portion of the rod.
5. In a mount for guns, a support, a cradle trunnioned thereon, a base trunnioned to the cradle forwardly and below the cradle trunnion, a recoil sleigh slidable on the base and a recoil and counter recoil mechanism for the sleigh mounted on the base and having its points of action and reaction substan tially in the vertical plane containing the trunnion of the base.
6. In a mount for guns, a support, a cradle trunnioned thereon, a base trunnioned to the cradle, a recoil sleigh slidable on the base and a recoil and counter-recoil mechanism for the cradle mounted on the base and having its points of action and reaction substantially in the vertical plane containing the trunnion of the base.
7. In a mount for guns, a support, a cradle trunnioned thereon, a base trunnioned on the cradle, a sleigh slidable onthe base and a recoil and counter recoil mechanism for the sleigh mounted on thebase and having its point of application of action and reaction substantially coincident.
8. A gun mount embodying a cradle, trunnions for the cradle elevatedfabove the same, a sleigh on the cradle and positioned nearer the cradle than the elevated trunnions, a recoil mechanism interposed between the sleigh and the cradle, and an element on the cradle to take the thrust of the recoil and counterrecoil at a voint on-such element located in a plane su stantiall coincident with the plane of the axis of t e trunnions.
9. A gun mount embodying a cradle, trunnions for the cradle elevated above the same, a sleigh on the cradle and positioned nearer to the cradle than are the elevated trunnions, and a recoil 'mechanism interposed betwee the sleigh and cradle.
10. A gun lmount embodying a cradle, trunnions for the cradle elevated above the same, and a sleigh on the cradle positioned nearer to the cradle than are the trunnions whereby stability of the mount is secured. SAMUEL G. GREEN.