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Патент USA US2107803

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Feb. 8, 1938.
M RoLélK
I
2,107,803
ADJUSTING MECHANISM FOR FIREARMS
Filed June 20, 1956
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Patented Feb. s, 1938
2,107,803
UNITED STATES PATET OFFICE
2,107,803
ADJUSTING MECHANISM FOR FIREARNIS
Miroslav Rolcik, Brunn-Husovice, Czechoslo
vakia, assignor to éeskoslovenska Zbrojovka
A. S. Brno, Brno, Czechoslovakia
Application June 20, 1936, Serial No. 86,414
In Czechoslovakia June 24, 1935
11 Claims. (Cl. 74—195)
My invention relates to mechanism for the forming part thereof, a mechanism embodying
continuous control of the speeds of two inde- my invention is illustrated diagrammatically by
pendent rotary movements without regard to the way of example.
direction of rotation. It has particular referIn the drawing,
5 ence to the control of means for adjusting ?re
arms on the tripod or other understructure both
horizontally and vertically.
It is an object of my invention to provide
means 1°01‘ effecting Such adjustment of a ?re
10 arm in a particularly Simple and e?icient man-
Referring to the drawing, I is the motor, 2 is
the shaft transmitting power from the motor to
a cogwheel 3 ?xed on the motor shaft and 4 is 10
ner.
As is well known to those skilled in the art the
adlusting mechanisms for e?ecting the sighting
in correspondence with the calculated data both
15 for elevation and for lateral displacement were
hitherto Operated manually 01‘ by means of a
motor. Manual operation of the reversible adjusting mechanisms for ?re arms, whether separately or simultaneously operated for horizontal
20 and vertical adjustment, has been found to be
another cogwheel supported in bearings 5 and
meshing with the wheel 3. This pair of cog
wheels transmits motion to the mechanisms for
adjusting the fire arm in vertical and horizontal
directions. In the example shown in the draw- 15
ing power is transmitted by means of a friction
gear. To this end the active faces 6 and ‘I of
the cogwheels are formed on separate plates [5,
H5 seated in depressions formed. in the wheels
and acted upon by coil springs l1, projections 20
unsuitable with ?re arms serving to fire on fast
Fig. 1 is an axial section of the mechanism and 5
the casing surrounding same, while Fig. 2 is a
cross section on the line II--II in Fig. 1.
48 formed on the undersides of the plates 6, 1
moving objects Manual operation requires the
constant attention of the gunner and the speed
of adjustment remains low. On the other hand
25 adjusting mechanisms for ?re arms, which are
Operated by a motor. are suitable on1y in connec'51011 With large guns, Since they are greatly involved. quite especially if they comprise means
for reversing as required in Such a Case30
It is important that the gunner, when operating such an adjusting mechanism, be only required to control a single member in Order to be
free to direct his attention solely to the observation of the object aimed at and to the ?ring
35 proper, as only in Such case a reliable operation
°f_the ?re arm and an e?icient ?ring can be 0b‘
tamedAccording to the present invention I avoid the
drawbacks connected with the means for adjust-
extending into cavities formed in the wheel bodies
to ensure the plates 6, 1 being carried along by
the wheels. Friction discs Ill and H are in con—
tact with the surfaces of plates Sand 1, respec- 25
tively, and rubber rings l2 and I3 mounted on
the discs serve to create the necessary friction.
The discs in, H are mounted on shafts 20, 2|
for axial displacement and secured against rota
non thereon by keys 22, 23, thus carrying along 30
the shafts, The discs I0 and ll can be shifted
to either side from their central position on the
plates 5, ‘L
The adjusting of the discs lil, H from their
neutral position, independently from each other, 35
and therewith the simultaneous adjusting of the
respective speeds for both movements and oppo
Site directions of rotation is effected by means
of a device X Operable with the aid of a single
40 ing ?re arms as hitherto in use by driving the
mechanisms for vertical as well as for horizontal
member_
40
This device is constituted mainly by a lever
4Ol
adlustment it“? 2’ Smgle Sfmrce of power’ the
power transmls§10n frpm thls source to the ad"
supported for oscillation on the tube 25 ?xed to
the casing 25. The shorter arm a of this lever
Justmg mechanism being effected by means of a
t
- -
.
.
is forked at 38 (Fig. 2), the arms of this fork
ransmission device which enables the speeds to
.
.
.
-
t
be controlled continuously in both directions of
.
.
rotation.
The single
components of the move-
pmJectmg mto an annular gropve “.3 an ex en‘
sum
of the hub 3.‘ of the fr1(.3t1°n disc Iii.' The
.
ments are controlled simultaneously, however in-
him of The have? 15 formed “.Ilth two proJectlgns
dependently from each other by means of a de
50 Vice common to both: which comprises two piV_
otally connected members which are arranged in
is rotatably mounted a double-armed lever Y,
which can be Tucked normally to the plane of
the form of a, Self-contained unit in such mannor as to enable two movements at right angles
to each other to be controlled.
rotation of the device X. On the short arm of
lever Y is mounted a toothed Segment 35 Which
meshes with a rack 36 formed on the extended
55
In the drawing affixed to this speci?cation and
45
formmg bearmg? 34 for a‘ Journal 32’ on Whlch
hub 3'! of the friction disc H.
Since the rack is 55
2
2,107,803
required to rotate together with the friction disc,
its teeth are formed as rings.
A longer arm of the lever Y forms the handle
38 which serves to actuate the device X. Power
is transmitted from the shaft 20 to the horizon
tal adjusting means through the toothed wheel
40 (Fig. 2) , while transmission of power from the
vertically and horizontally adjusting ?re arms
comprising in combination a motor, two mech
anisms operatively connected with said motor
for driving the adjusting devices, means inserted
between said motor and said mechanisms for
continuously controlling the speeds in either di
rection of rotation, said means comprising a pair
shaft 2| for vertical adjustment is transmitted
through wheel M.
If it is desired to manually adjust the gun,
of cog wheels operatively connected with said
hand wheels 42 and 53 are mounted on the ends
atively connected with both mechanisms for si
of the shafts 2i and 20, respectively. In the case
of manual operation contact between the fric
tion discs l0 and II and the cogwheels 3, 4, re
15 spectively, is interrupted by suitable mechanism
(not shown), which temporarily forces the plates
15, Hi deeper into the depressions of the cog
wheels 3, 4, respectively.
motor and a pair of friction discs: operatively as
sociated with said cog wheels, and a device oper
multaneously and independently controlling the
components of such motion.
4. The mechanism of claim 3, in which a mov
able friction plate is associated with each 00% 15
Wheel and its respective friction discs and a
spring is inserted between each wheel and plate.
5. The mechanism of claim 3, in which the
controlling mechanisms comprise shafts for
driving the vertical and lateral adjusting devices,
In order to adjust the gun the gunner controls
the vertical and horizontal adjusting mecha
nisms driven by the motor I by merely rocking
the handle 38 in two directions at right angles
to each other. With his other hand he operates
the trigger. When sighting a predetermined ob—
25 ject in accordance with the data furnished by
the observer the controlling member may ad~
vantageously be combined with an adjustment
device for vertical and lateral adjustment.
On the other hand, when ?ring at quickly
30 moving objects observed by means of optical de
vices the movements of some of the parts of these
said shafts carrying the friction discs for ax
ial displacement, and further comprise means
for simultaneously, but independently control
ling said discs.
6. The mechanism of claim 3, in which the
controlling mechanisms comprise shafts for driv
ing the vertical and lateral adjusting devices,
said shafts carrying the friction discs for axial
displacement, and further comprise means for
devices may be transmitted by means of the
coaxially with and rockably on one of said shafts.
'7. The mechanism of claim 3, in which the
power transmission device onto the controlling
device X in order to simultaneously set operat
35 ing the adjusting mechanisms for vertical and
horizontal adjustment.
While in the embodiment shown in the draw—
ing and speci?cally described a friction drive
mechanism has been illustrated, it is obvious
40 that other kinds of power transmission with con-
10
simultaneously, but independently controlling 3O
said discs, said controlling means being arranged
controlling mechanisms comprise shafts for driv
ing the vertical and lateral adjusting devices I >
and carrying the friction discs for axial dis
placement, said adjusting devices comprising a
lever for simultaneously, but independently con
trolling said discs, and a fork on said lever which
fork is operatively connected with one of said
.49
discs for displacing same in one or the other \
tinuous speed control, such as hydraulic, elec
tric or other power transmissions, might be used.
Similarly the details of the driving and control
ling devices might be altered without departing
45 from the spirit of this invention or sacri?cing
the advantages resulting therefrom.
I wish it to be understood that I do not desire
direction for reversal and change of speed of
rotation.
8. The mechanism of claim 3, in which the
controlling mechanisms comprise shafts for driv 4.5
ing the vertical and lateral adjusting devices,
said shafts carrying the friction discs for axial
to be limited to the exact details of construction
shown and described for obvious modi?cations
50 will occur to a person skilled in the art.
I claim:
1. A mechanism for operating the means for
a lever for simultaneously, but independently
controlling said discs, and a fork on said lever 150
which fork is operatively connected with one of
displacement, said adjusting devices comprising
said discs for displacing same in one or the other
vertically and horizontally adjusting fire arms
direction for reversal and change of speed of
comprising in combination a motor, two mech
55 anisms operatively connected with said motor for
driving the adjusting devices, means inserted be
tween said motor and said mechanisms for con
rotation, and a second lever oscillatable about an
tinuously controlling the speeds in either direc
tion of rotation and a device operatively con
60 nected with both mechanisms for simultaneous
ly and independently controlling the components
of such motion.
2. A mechanism for operating the means for
vertically and horizontally adjusting ?re arms
65 comprising in combination a motor, two mecha
nisms operatively connected with said motor for
driving the adjusting devices, means inserted be
tween said motor and said mechanisms for con
tinuously controlling the speeds in either direc
70 tion of rotation, said means comprising friction
gearing, and a device operatively connected with
both mechanisms for simultaneously and inde
pendently controlling the components of such
motion.
75
.
3. A mechanism for operating the means for
axis at right angles to said ?rst lever and opera :55
tively connected with said other disc for dis
placement at right angles to said other disc.
9. The mechanism of claim 3, in which the
controlling mechanisms comprise shafts for driv
ing the vertical and lateral adjusting devices, 60
said shafts carrying the friction discs for axial
displacement, the adjusting devices comprising
a lever rockable about one of said shafts for
simultaneously, but independently controlling
said discs.
10. A mechanism for operating the means for
vertically and horizontally adjusting ?re arms
comprising in combination a motor, two mecha
nisms operatively connected with said motor for
driving the adjusting devices, friction means in
serted between said motor and said mechanisms
for continuously controlling the speeds in either
direction of rotation, and a double-armed lever
subdivided in two parts, arranged for oscillation
at right angles to each other, both parts being
3
2,107,803
rockable about the axis of one of said driving
mechanisms and each part operatively engaging
one of said friction means for adjusting same.
11. A mechanism for operating the means for
vertically and horizontally adjusting ?re arms
comprising in combination a motor, two mecha
nisms operatively connected with said motor for
10
cogwheels operatively connected with said motor
and a pair of friction discs operatively associated
with said cogwheels, shafts extending at right
angles to each other, each carrying one of said
friction discs, a lever oscillatably mounted on
one of said shafts for displacing one of said
driving the adjusting devices, means inserted be
discs on the other shaft and another lever pivoted
to said ?rst lever for oscillation at right angles
tween said motor and said mechanisms for con
to it for displacing the other disc on said one
tinuously controlling the speeds in either direc
shaft.
tion of rotation, said means comprising a pair of
Y
MIROSLAV ROLCIK.
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