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Патент USA US2409619

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Üd. 22, i946.
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Filed Dec. 13, 1940
3 Sheets-Sheet 2
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Patented Oct. 22, 1946
Harold W. Evans, Wilkes-Barre, Pa.
Application December 13, 1940, Serial No. 370,026
2 Claims.
(Cl. 89-37)
(Granted under the act of vMarch 3, 1883, as
amended April 30, 1928; 370 0. G. 757)
The invention described herein may be manu
factured and used by or for the Governmentl for
governmental purposes, without the payment to
me of any royalty thereon.
This invention relates to a gun mount.
In equipping armored vehicles with guns it has
been the general practice to provide special
mounts and to arrange them for prescribed fields
of fire.
With a View towards facilitating produc
tion and increasing the usefulness of the weapons
it is proposed in the present invention to pro
vide a gun mount which is adapted to receive the
various types of cradle mounts employed by other
arms of the military service so that the gun may
be readily dismounted from the vehicle and set
up on a conventional tripod.
It is also the purpose of the invention to pro
vide a mount which may be moved cn a track
completely around the periphery of the armored
vehicle body so that each gun has an all-around
ñeld of iire and all guns may be distributed or
converged as the occasion requires.
More specifically the gun mount comprises a
carriage including means for quickly locking and
unlocking it to the track, means for cross-leveling
the pintle, and means for locking the pintle
against rotation.
The specific nature of the invention as well as
and lower plate l I respectively overlying and un
derlying the flanges of the rail.
The upper and lower plates carry identical sets
of rollers, namely a center roller i2 for engaging
the face I3 of the rail, a roller M mounted on
a fixed stud l5 for engaging the outer side I6
of the flange adjacent the support, and a roller
Il for engaging the inner side of the flange.
The roller Il is carried by a yoke I9 which is
loosely mounted on a bolt 20 so as to be capable
of slight displacement between the ñange and the
back plate 9 of the carriage.
The carriage is provided at its sides with a
pair of laterally spaced brackets 2|-2I having
aligned apertures 22-22 for journaling a pair of
shafts 23-23. The adjoining inner ends of the
shafts are supported in a bearing 24 formed on
the back plate 9. A pair of side arms 25-25 of
a handle 26 are keyed on the shafts 23 and re
tained by a nut 2l. A pair of torque springs
28--28 each mounted on the inner end of a shaft
23 and anchored to the shaft and to the bearing
24 normally maintain the shafts in a predeter
mined angular position with the handle 26 de
' pressed as shown in Figs. land 2.
.The shafts 23 are provided with oppositely
threaded portions 29 and 30 for threadedly
mounting clamp-ing jaws respectively 3| and 32.
The jaws are similar and each one is provided
appear from a description of a preferred embodi 30 at its upper and at its lower extremity with a
laterally projecting wedge 33. The jaws are
ment as shown in the accompanying drawings in
mounted on the shafts 23 with the wedges 33
directed outwardly (Fig. 5) in rear of the
Fig. 1 is a view taken through a vehicle body
rollers Il. With the handle 26 in depressed or
and showing the mount in side elevation;
Fig. 2 is a longitudinal sectional view of the 35 locking position the jaws have been moved out
other objects and advantages thereof will clearly
Fig. 3 is a view in rear elevation;
Fig. 4 is a sectional view on the line 4-4 of
Fig. 2;
Fig. 5 is a plan View;
Figs. 6 and 7 are sectional views on the corre
sponding lines of Fig. 2;
Fig. 8 is a perspective View of the segments;
wardly in response to rotation of the oppositely
threaded portions 29 and 30 of the shafts 23 and
_the wedges 33 engage the rollers I1 pressing the
latter against the inner faces I8 of the flanged
40 track by virtue of the wedging action of the in
clined faces 33 acting' between the rollers I1 and
the backplate 9 thereby holding the carriage
against traversing movement on the track.
When the handle is elevated against the action
Fig. 9 is a perspective view of one of the jaws
45 of the torque springs 23 the jaws, by virtue of
of the clamp;
their threaded engagement with the shafts 23,
Fig. 10 is an exploded perspective View of ele
are translated inwardly towards one another, and
ments of the cross-leveling mechanism.
the wedges are disengaged from the rollers I1.
Referring to the drawings by characters of ref
The carriage is now free to be traversed on the
erence there is shown a support 5 which is the
wall of a gunner’s cockpit and constitutes the 50 track.
The rear face of the back plate 9 is formed
body of a vehicle. An I-bearn rail 6 held in spaced
with a horizontally projecting stud 34 for rotat
relation ’to the support fby a bracket 'l forms a
ably receiving a bearing 35 on a socket member
track for a movable carriage 8. The carriage is
36. This socket member is similar to the con
a channel member having a back plate 9 parallel
to the body of the rail and an upper plate I0 55 ventional socket of a tripod mount for machine
guns and rotatably receives the standard pintle
of the screw shaft 49 by means of the hand
wheel 5B. On lateral displacement of the plate
51 through the rotatably adjustable block 55 the
38 which carries the gun and cradle. The lower
end of the pintle is formed with a peripheral
groove 39 for receiving a pin 4€! mounted in the
socket member and held in position of angular
adjustment by means of a click latch 4l. The
pin is formed With- a notch 4:2 so that, in one
position of the pin the pintle may be removed.
The lower end of the socket member is split as at
43 so that when brought together by a screw 44
and lever t5 it may serve as a vise to hold the
pintle against rotation.
The socket member 3â is rotatably retained on
the stud 34 by means of a pair of segmental
plates ¿iS-«e5 which aresecured to the back plate
S of the carriage by means of screws 41. This>
provision is made so that the socket member
may be cross-leveled when the vehicle> i‘s on
uneven ground.
The carriage is provided with a pair of down
wardly inclined brackets 48--48 for mounting a
screw shaft 49 having a handwheel 55- at one
A nut 5l on the screw shaft has a flat side
52 with a projecting stud 53. A washer 5A
formed with a projecting b-lock 55 is journaled
on the stud> 5.3. The block 55 rides in the slot Eö
socket member is rotated on the stud 34 to cross
level the pintle.
The handwheel 5E! for cross-leveling, the han
die; 2.a for unlocking the carriage from the track,
and the lever ¿l5 for locking the pintle are al1
conveniently grouped so that they may ybe oper
v ated by one hand of the gunner. The pintle may
be readily removed and mounted in a tripod when
it is desired to emplace the gun on the ground.
I claim:
1. In a gun mount, a support, a gun-carrying
member journaled on the support, a plate fixed
to said member and having a slot, a screw shaft
mounted in the support, a nut on the screw shaft
having al projecting stud disposed in the slot of
the plate, and ay washer between the nut and
plate and having a block journaled on the stud
and riding inthe slot of the plate.
2. In a gun mount, a support, a gun-carrying
member journaled on the support, a plate fixed
to said member and having a slot, a screw shaft
mounted in the support, a nut on the screw shaft
of a plate 5l which is secured to- the socket mem
having a projecting stud disposed in the slot of
the plate, and a block journaled on the stud and
ber by bolts 5,8. The washer and the nut bear
against the plate 5.7 and the nut is thereby con
riding in the slot of the plate.
strained to translational movement on rotation 30
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