US1660595A - Machine-gun mount - Google Patents

Description

J. F. BUTLER MACHINE GUN MOUNT Filed Feb. 25, 192'? Feb. 2s, 192s.

5 Sheets-Sheet 1 ATTORNEY w1 mms: l W

Feb. 28, 1928. 1,660,595

J. F. BUTLER MACHINE GUN MOUNT 6 E Q o o E o o 6:; l o 0 L N Q N Jose/D7) /1- Baile? WITNESSWAM ATTORNEY 2s? 192s. 1,660,595l J. F. BUTLER MACHINE GUN MOUNT Filed Feb. 25, 1927 5 Sheets-Sheet 3 f-T- lHILIII INVENTOR 1 7" ,l v l.

WITNESS: my ATTORNEY Feb. 28, 1928. 1,660,595

J. F. BUTLER MACHINE GUN MOUNT Filed Feb. 25, 1927 5 Sheets-Sheet 4 INVENTOR Feb. 28, 1928. 1,660,595 l 'J. F. BUTLER MACHINE GUN MOUNT Filed Feb. 25, 1927 s sneet's-sheet 5 ventionbeing to provide a Patented Feb. 28.1928.

U'Ni'rao sra'ras 1.660.595 PATENT QFHCE Josarn F. BUTLER, or PITTSBURGH, rannsynvama.

MACHINE-GUN MOUNT.

.Application filed February 25, 1927. Serial No. 170,660.

their bullets will spray all parts of a certain area, the center of which is coveredv bythe Vsights of the mount so. that a target in this area cannotescape being struck.

Another object of the invention is to provide a bar which supports the muzzles of the guns and which is supported for rockwith eccentric means connected with one -I to provide means y so that the bar canbe given dlierent dethe mount, end

ing and sliding movement on of the bar for moving the same.

A still further object of the invention is for adjusting the eccentric grees of movement.

Another object of the inventionis to provide a motor for driving the eccentric 'means and to `so form the adjustable means that adjustments can be made while-the motor is in operation.

Another object of the invention is to pro-I vide means for raising and lowering one end of some of the guns.`

This mventlon also consists 1n certain other features of construction and in the Vsa combination and arrangement of the several parts, to be hereinafter fully described', illustrated in the accompanying drawings and specifically pointed out in the appended claims. j

In describing erence will be drawings wherein my invention in detail, refhad -to the accompanying like' characters denote like or corresponding parts throughout the several views, and 1n whichzv Figure 1 is an elevation showing the improved mount in use. p l Figure .2 is a plan view of the mount.

Figure 3 is a rear end view thereof. Figure 4 is a front end view thereof. Figure 5 is' a section on line 5--5 of Figure 3. t

Figure 6 is ure 5.

Figure 7 is a section online 7--7 of Figure 5.

Figure 8 is a section on line 8- 8 of Figure 2. l

Figure 9 is a section on line 9--9 of Figure 2. Y

a section on line of Figof the guns so that' shaft of a motor 22 supporte by Figure- 10 is a section on u line 1-10 of Figure 2.

Figure 11 is a section on line 11-11 of Figure 2. y f Figure 12 is a section on line 12--12 of Figure 11.

Figure 13 is a' section on line 13--13 of Figure 2.

Figure 14 is a section on Vligne 14k-14 of Figure 13.

Figure 15 1s a fragmentar. view of asupporting bar having-the `for ed lend foren- 'gaging the eccentrlc pin.

VFigure 16 isa fragmentary view of another supporting bar, the pin engaging slot in which is vertlcally arranged.

In these views, 'the mount form having the depending anges 2 which carry the trunnions 3 which are journaled in the upright=4 of the supporting frame' A which may be fastened to a rotatable platform when the'device is used as'an anti-aircraft gun. The toothed segment 5 is fastened to one of these flanges andengages the worm 6 on the shaft 7 which is adapted to be rotated by the hand wheel 8. This' will enable the mount to be rocked to train the guns on a target. This arrangement of supporting means for the mount is optional, as any suitable supporting means can be used with the improved mount.

A bar 9 is supported at. the front -of the frame or platform by meansof a roller` 10 which has its horizontal pintles 11 journaled a bearing which is rotatably mounted in the bearings 19 arranged 'at one end of the frame or mount. This drum has a ring gear 20 thereon which is engaged by a inion 21 of a the mount, sothat thedrum is driven by the motor. A second shaft 23 is mounted'in the bore 17 and telescopes the inner end of the shaft 16, the two shafts being keyed together, as shown at 24. A spiral groove 25 1s formed in the shaft 23 and is en aged by a in 26 carried by the drum. A ob 27 is readed in an opening formed a support 28 is shown at 1 y and is 1n the form of a flat frame or platin a bracket 12'fastened to the platform and ythis roller has a hole 13 therein for slidingly receiving as the roller 10 and it will be fastened to the frame or mount and the inner end of the knob is formed with an annular interior groove 29 which receives a collar or lange 30 on the end'of the shaft 23 so that as the knob is turned, it will be' moved longitudinally in the threaded hole in the support 28 and lthus the shaft 23 will be caused to move longitudinally with thc knob and the groove 25 and pin 26 will cause the shaft 23 to rotate as it is being moved longitudinally and thus the shaft 16 will be rotated to change the position of the eccentric pin 15. As will be seen, this p1n can be moved to the center of the drum where it will be in a neutral position and it will not move the bar 9, but when it has been moved out of this neutral position, the bar 9 will be rocked on its pivot formed by reciprcated 1ongitudinally. It vwill also be seen that the pm can be adjusted through means of the knob 27 while the drum is in motion.

A pointer 31 is carried by the support 28 and cooperates with a scale or dial 32 on the knob to indicate the amount of vadjustment of the parts.

hinged to the bar,

The machine guns are shown at B and these guns may be of any suitable type. The muzzles of the guns are held in supporting members 33 which are fastened to the bar 9,

the drawings showing two of the guns arranged at one sidevot' the pivotal point 10 of the bar and another pair of guns are arranged on the other side of the vpivotal point, but it will, of course, be understood that an desired number of gunsl may be used. Anti- -friction bearings 34 support the muzzles of the guns in the members 33 so lthat the muzzles can have free movement in thesupporting members.

' One of these supporting members is j as shown at 35, so that it can be rocked, and the means'for so rocking the supporting member comprises a shaft 36 havlng one end j ournaled in a bracket 37 fastened to the mount adjacent the bar 9, with an arm 38 on the shaft which is connected e understood that others of the guns can be Y so supported.

The'means for rocking the shaft 36 comprises a' shaft 40 carried .by the rear of the mount and having a worm 41 thereon which engages a worm gear 42 on-the rear end ,of the shaft 36 sov that handle'43 of the shaft 40, the shaft 36 will be rotated to raise or lower the sup orting member 33'.' The shaft 36 is forme inv sec- 4this bar 9 shown one of these muzzle supf porting members hinged, it will, of course,

by turning the crank tions which are connected together by the iexible joints 36.

In order to permit the muzzle ends of the guns to be adjusted, the rear ends of the guns must be movably sup orted The guns on the left hand side of hpigure-2 are supported for this movement by being fastened to the bases 44, each base having a square stem 45 which endsin a spherical member 46, said member beingheld in a socket formed by an upright 47 and its cap 48, the upright being fastenedto the rear part of the mount or frame. An angle bracket 49 is pivotally secured tothe top of the cap 48 and has a slot' O-therein which forms va guideway for the square stem 45. This construction permits the rear end of the gun to move horizontally.-

these stems are rotatably mounted between the clamping jaws52 rotatably mounted on a screw shaft 53 which is adjustable in a threaded socket inthe upright 47', a handle 54 being connected with the upper end of the screw shaft to permit it to 'be adjusted. Thus these guns can also have their rear parts moved vertically and horizontally and these guns canlalso be raised and lowered through means of the shaft 53.

A front sight 55 is supported by a V- shaped bracket 56 extending inwardly from the front bar of the frame or mount and a rear sight is arranged on the rear bar of the frame or mount and consists of a grooved wheel 57 eccentricallymounted on a crank shaft 58 journaled in the uprights l59 so lthat by turning the -crank handle, the grooved wheel forming the sight can be raised or lowered. These sights are in the same vertical bar 9.

A searchlight 60 is adjustably mounted on oney end of the frame.

As before described, the bar is given both a reciprocatory movement and a rocking movement s o that the muzzle ends of the guns are moved in a. spiral but insome cases it may be desirable to simply move the muzzles of the guns in a vertical arc and when this is desired, al bar 9 is substitutedffor the-bar 9 and has a forked end 9 for receiving the eccentric pin. Y Thisl construction is shown in Figure 15. Thus the bar is simply rocked on its fulcrum .after being recipr cated. f

I may also provide a bar 9x (Figure 16) to be substituted ,for the other bars, which is :formed with a vertical slot 9 for receiving the eccentric pin so that this bar is sim;

in operation, the

the center of which is occupied by the object, and this area will be of considerable dimensions owing to the movements imparted to the muzzles of the guns by the eccentric in. This area can be increased and diminis 1 ed as the ring is taking place by turning the knob 27 to adjust the eccentric pin as it is being rotated by the drum. The area can also be increased by raising and lowering the gun or guns, which have their 4muzzle supports hinged to the bar. justable eccentric, the guns can be fired at a. dead center by placing the pin in a neutral position' so that the rotation of the drum lwill not change its position. Then by turning the knob. the pin can be moved from a neutral position so as to impart movement to the muzzles of the guns to scatter the `shots and the radius of the spiral in whichAV each muzzle is moving can be changed by turning the' knob. Thus a target out of range without being struck after the sights have been trained on it. As before.

stated, by the use of a bar providedvwith a horizontal` slot, the gun muzzles can be moved vertically, while with the use of a har having a vertical slot, the muzzles of the guns can be moved in a horizontal plane. The sights are held on the target and then the guns are automatically moved to throw their bullets in a wide area to the target so that itis not necessary to sight the guns on a target. While this device is shown for use on an anti-aircraft gun, it will, of course, be understood that it can be used on aircraft and it can also be, used in other situations. Y

The invention can also be usedl in units of -one gun, one eccentric shaft. and one actuating bar with two or more units arranged on one mount 4and driven rom'the same motor.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it lto be understood that I may make changes in the constructionand in the combination and arrangement of. the several parts,` provided that such changes fall within the sco of the appended claims.

What claim is:-

1. A machine gun mount comprising a,

frame, a plurality of machine guns carried thereby. means for movably connecting the rear ends of the frame, amovabe member at the front of the `frame, means for supporting the member so that it can have rocking andsliding movement, means for movably connecting the Y muzzle ends of theguns to said member and means for giving saidmember a combined sliding androcking movement. A j f 2. A machinegun ymount comprising a frame, a plurality ofmachine guns carried thereby,rmeans for `4movably connecting the rear ends of the guns to the rear part of With the ad.

cannot get tothe rear partof the.

the frame, a movable member at the front of the frame, means for movably connecting the muzzle ends of the gunsv to said member, a drum carried by the frame, an eccentric pin carried b the drum and engaging the movable mem )er to actuate the same, means for rotating the drum and means for. adjusting the eccentric in relation to the drum. 3. A machine gun mount comprising a frame. a bar, means at the front of the frame for supporting the bar sothat it will have sliding and rocking movement, a drum, an eccentric pin adjustably arranged on the end of the drum and engaging the lbar for moving the same, means for rotating the drum,

'a number 'of machine guns, bearing. mem-- supported on the bar for receiving the muzzlcs of the guns, means at the rear of the frame for movably supporting the rear ends of the guns, such means permitting the rear end'of each gun to be moved vertically and horizontallyl l 5. A machine gun. mount comprising a frame, a4 drum rotatably mounted thereon and having an eccentrically arranged bore, a shaft mounted to rotate in the bore, a pin eccentrically arranged on one end of the shaft and projecting from the end of the drum manually -operated means for rotating the shaft to adjust the pin in relation to the drum, means for rotating the drum, a bar mounted on the frame for sliding and rocking movement and having one end engaged by the pin, a plurality of machine guns, ball bearing means carried by the bar Y or. receiving the muzzles of the guns and means forv movably supporting the rear ends of the guns at the rear of the frame.

6. A machine gun mount comprising a frame, a drum rotatably mounted thereon and having .an eccentrically arranged bore, a shaft mounted to rotate in the bore, a pin eccentrically arranged-:on 'one end of the shaft and vprojectingffrom the end of the drnm, manual1 operated means for rotating the Ashaftto a 'ustthe pin in relation to the -drum,.means or rot-ating thel drum, a bar Cil with the bar, means for moving the member: on its hinge and means for movably supporting the rear ends of the guns at the rear .of the frame.

v7. `A machine gun mount comprising a frame, front and rear sights carried thereby and arranged at the center of the frame, a lrotatable member at the front of the frame at 4the center thereof, said member havin a a number` of `interchangeable bars adapted to be operated by the eccentric pin,

. l one bar having a bearing at one end. for engaging lthe pin, another bar having a longi- "tudinal slot therein for engaging they pin and athird bar having a vertical slot at one.

end thereof for engaging the pin, means at the. front ofthe frame in 'thejcenterl thereof g forming a support-for any one of the bars,

means carried b the bal-s for supporting the muzzles of mac ine guns, means at the rear..

of the frame for' movably supporting the -rear ends of the machine guns and means for rotating the drums. Y

9. :A machine gun mount comprising a frame, a drum rotatably mounted at one side thereof, an eccentric pin carried by. the drum, 4

a number of interchangeable bars adapted lto 'be operated byl theeccentric pin, one bar port foranyone of the bars,

having a bearing at one end for enga' ing the pin, another bar 'having a longitudinal slot therein for engaging the pin and a third bar having a vertical' slot at one end thereof for.

engaging the pin,`me a'ns at 'the'frontof the frame in the center thereof forming a supbythe bars' for supporting the muz 'zles of with the knob'.

means carried ma'chine uns, means at the rear of the frame pin on the end of the drum.

10. A machine gun mount comprising frame, a plurality of machine guns carrled thereby, `a drum rotatably mounted on the frame, and having an eccentric bore therein, a shaft rotatably mounted in the bore, an eccentric pin on the shaft means operated by the pin for moving simultaneously the muzzles of the guns,lmanually operated means for rotating the shaft to adjust the pin While the drum is moving and indicator means for indicating thez extent of movement of the manually operated means.

11. In a devicefof the class described, a drum rotatably supported and having an eccentric bore, a shaft rotatably mounted in one end of the bore, ,an eccentric pin carried the shaft, a second shaft rotatably mountin the other end of the bore and telescoping-with the first shaft, a key connecting'lthe'Y two shafts together, lthe second shaft aving a spiral groove therein, a pin carried by Y the drum engaging the groove, a knob, means for causing longitudinal movement of the knob when the. same is rotated, and means for movably connecting'the knob-With the second shaft so that the shaft will be moved 1.2; A machine gun mount comprising a frame, a bar, means at the front ofthe frame for supporting the-bar sothat it will have sliding and rocking` movement, an eccentric device for movin the banimeans for operating the eccentric evice, a gun,^abear ing member for the muzzle of the gun Sup- .ported on the bar, and means at the rear end of the gun.

. In testimony whereof I aix my signature.

JOSEPH F. BUTLER.v

of the frame for movably supporting therear

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