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Патент USA US2410116

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w. 29, lélié.
H. F. VICKERS
2,410,116
BREECH ACTUAT-‘ING‘AND CONTROL SYSTEM
Filéd Dec. 12, 1955
IN VENTOR.
2,410,116
Patented Oct. 29, 1946
‘UNITED STATES PATENT OFFICE
72,410,116
Brmnon ACTUATING AND CONTROL
SYSTEM
Harry _F. Vickers, Detroit, Mich, assignor, by
mesne assignments, to Vickers, Incorporated,
Detroit, Mich., a corporation of Michigan
Application December 12, 1935, Serial No. 54,026
9 Claims.
1
This invention relates to a breech actuating
and control system and has to do particularly
with a novel control and actuating circuit for the
breech mechanism of a gun mount.
The present invention contemplates the pro-''
vision and connecting up of hydraulic actuating
and control mechanism for moving the breech
mechanism to and from ?ring position and for
ejecting the cartridge case, in combination with
means‘ actuated by the recoil of the gun for sup-i
plying motive power to said actuating and control
(Cl. 89_—4)
2
clearer, and because the rammer unit per se forms
no part of the present invention.
An oil reservoir is diagrammatically shown as
at B and is connected through a check valve 9
and a conduit ID to a charging cylinder II; this
charging cylinder in turn is connected through
an extension of-the conduit III, a check valve
I2, and conduit I3, with an accumulator I4. A
piston I5 forming a part of the charging cylinder
I I is pivotally connected to the gun mount as at
I6, whereby recoil of the gun will force any liquid
in the cylinder II through the conduit IIJ, check
valve I2 and into the accumulator I4, and a
return movement of the piston I5 will draw up oil
ing a breech mechanism actuating and control 15 from the reservoir 8 past the check valve 9 and
into the cylinder I I. Any leakage past the piston
circuit, an accumulator circuit controlled by the
II is returned through the conduit I‘! to the
recoil of the gun, and a return or tank circuit,
reservoir 8.
.
a
whereby motive power is normally supplied
A conventional pilot control valve is shown as
through a compact circuit and accumulating
means by the recoil of the gun, and which motive 20 at I8 and connects the pressure conduit I9 with
one or the other of two conduits 20 and 2!. The
power may, in an emergency, be supplied from
conduit'ZIl is connected to the upper end of a
either one of two sources. Other features of this
breech block cylinder 22 and by means of branch
compound hook-up, resulting in a compact actu
conduit 23 is also connected to an extractor
ating and control circuit with a main positive
operating valve 24 and through a check valve 25
and auxiliary sources of pressure supply, will be
and conduit 26 to one end of an ejector cylinder
more clearly brought out in the speci?cation and
21. The other end of the ejector cylinderl‘l is
claims.
connected through a conduit 28 with the conduit
The accompanying drawing is a diagrammatic
2| and also by means of auxiliary conduits with
view of a breech actuating and control mecha
nism embodying the present invention and show 30 the operating valve 24 and to the bottom end of
cylinder 22. In the position of the control valve
ing in particular the compound circuit hook-up '
I8, as shown in the drawing, the conduits 2D
including a plurality of means for furnishing
mechanism.
Another feature of the invention has to'do with
a compound hook-up and control circuit, includ-.
?uid pressure.
and 2| are connected through a return conduit
29 with the reservoir 8.
It will be understood that the present inven
tion relates generally to the storing up of power 35 Power required for initially building up pres
sure in the accumulator I4’ may be supplied
incident to the recoil of a gun, and the manner
from electric motor 30 and pump 3I circulating
of storing up of such power and applying the
liquid from tank 32, which tank for the purpose
same to actuate and control the breech loading
of clarity only is shown separate from tank 8.
and unloading mechanism; the hydraulic actuat
ing and controlling means utilized in this system 40 This motor and pump unit need only be of such
small size as toitake career the charging of
may be of any standard design and for this reason
accumulator I4 and the emergency requirements
are shown diagrammatically.
for the rammer unit 6, and thus may be reduced
In the embodiment shown in the drawing, the
in size and power to a minimum. In place of
rear end of the gun mount or breech is generally
designated 2, the ejector unit for the cartridge 3‘ 45 time and pressure controls I'have shown a single
connectionbetween the pump 3I and accumu
' being diagrammatically shown as at 4 and the
lator I4 as by means of a conduit“, throttle
breech block as at 5. A chain type rammer unit
for moving the charge into position is shown in‘ I valve 35 and check valve 36. An emergency con
'ne'ction is made between the reservoir 8 and
dotted lines and is generally designated 6; this
rammer unit would normally be positioned closely 50 accumulator I4 by means of a‘ hand operated
1 pump 31', through‘ conduit 38, conduit 39 and
adjacent the breech of the gun so that the ram
mer unit-‘I as shown in solid lines would be posi
tioned adjacent the breech of the gun; the ram- mer unit is shown positioned away from the ?
check valves 4!] and 4|.
.
h
In operation, with the partsin the position as
,shown , in the drawing,v the ?ring pin in _V the
breech to make the diagrammatic illustration" 55 breech. block 5 maybe ?red in the usual manner.
2,410,116
3
and the charge exploded. Before ?ring of the
gun, the throttle valve 35 or equivalent means,
may be set to supply a small pressure to the
4
valve is so set as to open the conduit ID to the
tank when the liquid in the accumulator l4
reaches a predetermined pressure.
accumulator It, or the valve may be manually
opened from a closed position to supply charging
pressure to the accumulator l4. Firing of the
In the event of the failure of the recharging
cylinder II, it will be seen that if the throttle
valve 35 is partially open, after the initial charg
gun and reciprocation of the vpiston 15 due to the
ingastepr- the-pump 3| will supply a limited
recoil of the gun will charge the cylinder II with
amount of pressure to the accumulator l4, and in
a supply of oil from the reservoir 8 which reser
any event this pressure supplied by the pump 3!
voir would normally be a part of tank 32. Toj 10' will supply su?icient pressure to actuate the
lower the breech block 5, the control valve i8 is‘
‘motor and control unit 33 to cause actuation of
moved to open position, or down, as viewed in the‘ {W the rammer unit 6. It will also be obvious that
drawing, admitting pressure from the accumu
vthe throttle 35 may be moved to wide open posi
lator I4, through conduit I9 and into conduitZO,
tion to supply pressure equal to the full capacity
to the upper end of the breech block operating 15 of the pump 3| so that all the parts of the entire
cylinder 22, moving the breech block down. At
system maybe operated at a speed equal to the
the end of its downward stroke, the breech block
combined capacity of the accumulator l4 and the
contacts with the member 2412 of the extractor ‘3 pump 3 I. It will also be apparent that the entire
valve 24, and moves the valve against the action
capacity of the pump 3! may be utilized in actu
of a spring 42, whereby“ to connect the pressure 20 ating the rammer 6, by closing the throttles 35
line 23 with the conduit 26 and the operating end
,and, 49; and in which event, the hand pump 31
of the ejector cylinder 21. Movement of the pis
can be utilized for supplying ?uid pressure to the
-vtonvwithin the ejector cylinder 2'! causes the
cylinders 22 and- 21. In the event of failure of
empty cartridge 3 to be ejected.
,
both the cylinder H and the pump 3|, pressure
Return of the lever 43» and valve l8 to neutral 25 may be supplied to the accumulator by the hand
position, or the position shown in the drawing,
operated pump 31, in which event the pressure
opens both lines 29 and 2| to the reservoir 8.
supplied to the accumulator by the pump 31 could
This action automatically vents both ends of the
be used in operating the units of the entire sys
operating cylinder 22 and allows a buffer spring
tem‘, or used in operating the rammer unit or the
member 44 to raise the piston 45; this movement
breech block and ejector units as desired.
raises the breechblock 5 su?iciently to ?rst free
It will thus be seen by this simple, compound
the member Zea and then allow the valve mem
system that complete hydraulic actuating and
ber of valve V2% to return to normal inoperative
control may be obtained with actuating and con
position, as shown in the drawing. The move
trol units reduced in weight and size to a mini
,ment of the valve l8 to neutral position also, 35 mum, that the charging of the rammer, breech
vents both ends of the extractor cylinder 21, and
block and ejector actuating-control system is
the piston in cylinder 21 is returned to the posi
normally automatic in that the main source of
power is supplied by the recoil of the gun, and
tion shown in the drawing by means of aspring
46, the oil in the actuating end of the cylinder 21
that the entire system is practically breakdown
returning through check valve 25 to the tank and 40 proof by the compounding of the threecircuits.
to the rod end of cylinder 21. 1
What I claim is:
1. A gun breech actuating and control system
comprising a hydraulic motor for actuating a
rammer, hydraulic motors for respectively actuat
and admitting the pressure through the conduit 45 ing a breech vblock and ejector, a hydraulic pres
2| to the lower end of the cylinder 22. ‘When
sure accumulator connected to, and adapted to
After the ramming of another projectile and
cartridge into the gun, the breech block 5 will be
raised to ?ring position by raising the lever 43
the breech block is fully raised, it may be locked
in position by the usual bolt means (not shown) ;
afterwards the control valve l8 may be moved to
neutral position, again venting both ends of the:
breech block operating cylinder 22.
I V
v
An important feature of the present invention
is the fact that with each recoil of the gun 2, the
piston 95 will recharge the-accumulator l4 and
thus during any continued-?ring action the main. 1
source of power will be furnished by the accu- "
mulator M to continuously actuate the breech
block,.ejector and rammer mechanism. While,
‘of. course, the recharging cylinder I l and the
other elements of the operating and control sys-.
tem are kept to a minimum size and weight, it
will be seen that- the cylinder H can have most
any capacity desired, corresponding to the ca
pacity of the accumulator l4 and the. e?ective
size of the cylinders 22 and 21, and the motor and
control unit 33.
1
accumulate liquid under pressure for actuating
said motors, a pump to be actuated by the recoil
of the gun for charging the accumulator with
liquid under pressure, a manually operated con
trol valve interposed in hydraulic connection be
tween said accumulator and breech block and
ejector motors and adapted to direct liquid under
pressure to said motors, and a control valve oper
ated by the movement of said breech block to
direct pressure to said ejector motor to cause the
ejecting movement of said ejector.
2. In a gun having a breech and breech block
and rammer, a gun breach actuating and control
system comprising a hydraulic motor for actuat
ing said rammer, an ejector including an auto
matic spring return therefor, hydraulic motors
. for respectively actuating a breech block and said
ejector, said hydraulic pressure accumulator con
nected to, and adapted to accumulate liquid under
I
pressure for actuating said motors, a manually
operated control valve interposed in hydraulic
andcontrol unit 33 is supplied from theaccumu
connection between said accumulator and breech
lator I4 through the conduit 19 and the auxiliary
block and ejector motors and adapted to direct
conduit‘ l9a. Throttle valves 48 and 49 may be,v 0 liquid under pressure to said'motors, a control
inserted in the system as shown to control the
valve operated by the movement of the'breech
maximum flow of actuatingv liquid to the motor 33
.blockrafteri it reaches the end of its normal
_. andqto the cylinders 22 and 21. Arelief valve 50
. stroke to direct pressure to said ejector motor to
“is preferably inserted between the conduit 10 and
_cause the actuation of the ejector only when said
Fluid pressure for operating the rammer motor
vihwstrrg
and-the spring, of“ saidreliefi .75., breechblookfis away‘ from the breech, and means
2,410,116
5
to return said last named valve to normal posi
tion to allow said ejector to return to initial eject
ing position while the breech block is still at the
end of its normal stroke.
3. In a gun having a breech and breech block
and rammer, a gun breech actuating and control
duits leading from said cylinder to said oil reser
voir and accumulator, check valves in said con
duits, the piston and cylinder and check valve
arrangement being such that the actuation of
said recharging piston and cylinder by the re
traction of the gun ?lls the cylinder and the recoil
of the gun furnishes ?uid under pressure to said
system comprising a hydraulic motor for actu
accumulator, one of said control valves being
ating said rammer, an ejector, hydraulic motors
interposed
between said accumulator and said
for respectively actuating said breech block and
said ejector, a hydraulic pressure accumulator 10 hydraulic motors for directing liquid under pres
sure \thereto, and another control valve oper
connected to, and adapted to accumulate liquid
ated by the movement of said breech block to
under pressure for actuating said motors, a man
direct pressure to said ejector motor to cause
the ejecting movement of said ejector.
draulic connection between said accumulator and
7. A gun breech actuating and control system
breech block and ejector motors and adapted to 15 comprising
hydraulic piston and cylinder struc
direct liquid under pressure to said motors, a con
ture
for
actuating
the breech block and ejector,
trol valve operated by the movement of the
a hydraulic circuit for controlling and actuating
breech block away from the breech and after
said piston and cylinder structure including con
it has reached the end of its normal stroke to
trol valves and an accumulator, an oil reservoir,
direct pressure to said ejector motor to cause the
and a recharging piston and cylinder structure
actuation of the eiector only when said breech
connected to the gun and to said. oil reservoir
block is away from the breech, and a power driven
and accumulator, said connections being such that
pump connected both to said motors and ac
the recharging cylinder structure is ?lled by the
cumulator for initially charging the accumulator
retraction of the gun, a rammer circuit includ
and actuating the motors in the event of failure
ing a pump, a conduit connecting said pump to
of said accumulator.
said accumulator whereby the accumulator may
4. A gun breech actuating and control system
be charged by the recharging piston and cylinder
comprising a breech block and ejector and hy
ually operated control valve interposed in by
draulic motors for actuating same, a source of
fluid pressure, valve means for controlling the .
flow of ?uid pressure to said breech block motor
for lowering the breech block, a control valve
for said ejector motor actuated by the movement
of the breech block away from the breech and
after it has reached the end of its normal stroke
to direct ?uid pressure to said ejector motor, and
means responsive to the relief of pressure in the
or by the pump, or both, and means positioned
between the accumulator and said piston and
cylinder structure for controlling the maximum
?ow of actuating liquid thereto.
8. A gun breech actuating and control system
comprising a breech block and ejector and hy
draulic motors for actuating same, a sourceof
?uid pressure, valve means for controlling the
?ow of ?uid pressure to said breech block motor
for moving the same away from the breech, a
breech motor for automatically returning said
control valve for said ejector motor so positioned
last named valve to a position such as to relieve
the pressure in the ejector motor and permit re 40 as to be actuated by the breech block after it
has reached the end of its normal stroke, and
turn of the ejector to initial position while the
means
responsive to the relief of pressure in the
breech block is still away from the breech.
breech motor for moving the breech motor pis
5. In a gun having a breech and breech block
ton a short distance and sufficient to release said
and rammer, a gun breech actuating and con
last named valve and permit return of said valve
45
trol system comprising a hydraulic motor for
to its normal position.
actuating said rammer, an ejector, hydraulic mo
9. A gun breech actuating and control system
tors for respectively actuating said breech block
comprising hydraulic motors for actuating a
and said ejector, a hydraulic pressure accumula
rammer, breech block and ejector, a hydraulic
tor connected to, and adapted to accumulate liq
uid under pressure for actuating said motors, a 50 circuit for said system including control valves
and an accumulator, an oil reservoir, and a re
manually operated control valve interposed in
charging piston and cylinder structure connected
hydraulic connection between said accumulator
to the gun and to said oil reservoir and accumu
and breech block and ejector motors and adapted
lator, the actuation of said recharging piston
to direct liquid under pressure to said motors,
a control valve operated by the movement of the 55 and cylinder by the retraction of the gun ?lling
the cylinder and by the recoil of the gun furnish
breech and after it has reached the end of its
normal stroke block away from the breech to di
rect pressure to said ejector motor to cause the
actuation of the ejector only when said breech
block is away from the breech, and a plurality
of power charging devices for said accumulator
including a power driven pump connected both
ing the main source of ?uid under pressure to
said acgumulator, said hydraulic circuit includ
ing a rammer circuit having a relatively small
pump, said rammer circuit being connected to
said accumulator through a valve for charging
said accumulator and supplying pressure thereto
in an emergency, a hand operated pump .con
nected to said accumulator for charging said
charging the accumulator and actuating the mo
tors in the event of failure of said accumulator. 65 accumulator and supplying pressure thereto in
an emergency, one of said control Valves being
6. A gun breech actuating and control system
to said motors and accumulator for initially
comprising hydraulically operated motors for
actuating a rammer, breech block and ejector,
a hydraulic circuit for said system including con
trol valves and an accumulator, an oil reservoir,
and a recharging piston and cylinder structure
having one portion connected to the gun and
another portion movable relative thereto, con
interposed between said accumulator and said
hydraulic motors for directing liquid under pres
sure thereto, and another control valve operated
1by the movement of said breech block to direct
pressure to said ejector motor to cause the eject
ing movement of said ejector.
HARRY F. VICKERS.
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