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Патент USA US2150055

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March 7, 1939.
Filed April 1, 1937
2 Sheets-Sheet l
' 33
, 3‘,
March 7, 1939.
Filed April 1, 1957
FIG. 5.
Q 2 Sheets-Sheet 2
FIG. 7.
Patented Mar, 7, 1939
nEMo'm ooNTRoL armaaa'us roa 'rma
guooassrva RELEASE OF norms my AIR
Raymond lDe?ves, Brussels, Belgium, assignor to
Servo-Frein Dewandre Societe Anonyme, Liege,
Application April 1, 1937, Serial No. 134,419
'lln France April 8, 1936
4 Claims. (Cl. 89-15)
My invention relates to an apparatus for re
closed at 26 and in which slides a piston 21 the
motely controlling the release of bombs on board rod 28 of which presents a transverse recess 23.
aircraft and relates particularly to a dev'lce for In the latter is engaged the lever 2| which is
_ ensuring the successive fall of the bombs.
guided by a driving pivot‘ 33 extending into a
According to the invention the support of each diametra-l boring of the said rod and into an
bomb is provided with a release mechanism es
eyelet provided on the said lever 2i .
tablished in such a way that the operation of
Parallel to the cylinder 2| and at the side
the release mechanism of a ?rst bomb upon the of it, the body 24 is provided with a two valve
actuation of the control member actuated by distributor 3i and 32, said valves being connected
10 the operator automatically puts the said control together by a rod 33.
member in communication with the release mech
The ?rst of these valves is intended to cut of!
anism of a second bomb, each mechanism being communication between the cylinder 25 and the
put into the operative position by means of a source of pneumatic ?uid delivered by the con
locking system actuated by the putting into po
duit 34.
sition of each bomb.
The valve 32 is provided for cutting of! com 15
' An example of embodiment of the invention munication between the conduit 34 and the con
in its application to a pneumatic device will be duit 35.
hereinafter described with reference to the ac
The said valves are urged" by springs 33 and
companying drawings in which:
Figure 1 shows a diagrammatic view of the
apparatus assembly and of the bomb secured to
the aeroplane;
Figure 2 is a view in longitudinal section of
the control mechanism shown in its unlocking
Figure 3 is a front view of the mechanism
shown in Figure 2;
Figure 4 is a view similar to Figure 2 showin
the mechanism in its unlocking position;
Figure 5 is an end view of the bomb showing
the means for securing it on its support;
Figure 6 is a diagrammatic view of the aero
plane showing the arrangement of the bombs and
the release mechanisms with pneumatic ?uid cir
Figure 7 shows a modi?cation of the device
for attaching the bomb to the aeroplane.
In these ?gures, a support l0 secured to the
aeroplane is provided with a socket H or the
like in which engages a lug i2 provided on the
bomb l3 for its attachment by means of a pin
or pull out piece It engaged in apertures provided
in the socket and in the said lug.
V shaped abutment members l5 (Figures 1
and 5) secured to the support ID are intended
to hold the bomb l3 in a suitable position.
The pull out piece I4 is pivotally connected
by a rod i6 to the end of an oscillating lever I'I
37 acting respectively behind the valve 3| and
on a guide piston 38 integral with the control 20
rod 39 of the said valves.
In a transverse guide 43 secured to the body
24 is guided a bolt ll subjected to the action
of a spring 42 and presenting a median con
stricted part in which an aperture 43 permits 25
the sliding of the rod 39.
The said bolt is intended to automatically en
gage a groove 44 notched in the said rod 33
when the latter is moved against the opposition
of springs 31 and 36 and when the valve 32 is
brought into its closed position while the valve
3| is brought into its open position.
The displacement of the said rod 33 is effected
under the action of a lever 45 pivoted at 43
to the casing of the mechanism and provided 35
with a stop 41 intended to act on the end 48
of the rod 33 when the said lever 45 is displaced
angularly in a clockwise direction in order to
permit the bomb l3 to be placed in position on
the support iii.
A ball latch 49 is provided in order to operate
on the lever 45 and to hold it stationary in its
extreme angular positions.
A tappet 50 pivoted at 5| on the rod 28 is
intended to act on a boss 52 of the bolt 4| and 45
is normally held against a stop 53 of the said
rod 28 by the action of a spring 54.
The diiferent bomb supports provided with
pivoted at l8 and subjected to the action of a ' their release mechanisms are secured for ex
ample under the wings of the aeroplane as shown 50
5 O spring i9 secured to the support iii.
A rod 20 further connects the said lever H in Figure 6.
to the end of a lever 2| pivoted at 22 to an
This ?gure further shows a compressed air
extension 23 provided- on the body 24 of the
actuating mechanism secured to the support Ill.
The said mechanism comprises a cylinder 25
tank 55 connected by means of an expansion
valve 56 to a selector valve 51 intended to put
the ducts 58 and 58a in‘ communication either
with the tank of ?uid or with the atmosphere.
The duct 58' extends from the valve “to the
establish communication of the tank 55 with the
tubes 58 and 53a will have the effect of produc
conduit 34 of the release mechanism of a bomb
ing the release of the bomb B of each wing.
As will be seen the ‘complete safety of dis
tribution is ensured since it is necessary to cease
-A while the conduit 35 of this mechanism is
connected by a tube 53 to, the conduit 34 of the
mechanism of a bomb B the conduit 35 of which
is connectedto the mechanism of a bomb C and
so on for each following bomb. The arrange
ment shown for the series of bombs in the right
10 wing of the aeroplane is identical with that of
the series of bombs on the left wing.
In order to maintain the equilibrium of the
aeroplane during the fall of the bombs, the ?uid
distribution is preferably established in such a
15 way as to produce simultaneously the release
of one bomb of the series on the right wing
and one bomb of .the series on the left wing,
it being understood, nevertheless, that the se
lector valve 51 may be arranged so as to release
20 only one bomb at a time.
the action of the expansion valve 56 in order
to be able to release the next bomb. The release
of the bombs C and D is effected as for the ?rst
two bombs but causing the ?uid to pass-through
the different release devices of the bombs which 10
have previously fallen and in each of which the
valve 32 is open and the valve 3| is closed.»
The selector valve 51 provided at a point of
the cockpit within reach of the pilot further per
mits the control of the bomb release to be isolated
when it is desired to pneumatically control other
?rearms such as machine guns, cannons, et_c.,
?tted on board the aeroplane. The expansion
valve in this case serves to actuate the various
'I'he bombs may also be supported vertically ac
cording to the arrangement shown in Figure 7.
In this arrangement the bomb attachment in
The operation of the apparatus is as follows:
The lever 45 having been necessarily actuated
in order to put ‘the bombs in position on their
support, the valves of the di?erent bomb mecha
which is engaged the pull out piece I4 is then
nisms become locked by the bolt ll in the posi
provided at one end of the projectile.
tion shown in Figure 4. In this position of the
What I claim is:
valves the cylinder 25 of the ?rst bomb is in com
1. In a remote‘ control device for actuating suc
munication with the tube 58 while the tube 59 cessively, on board an aeroplane, ?uid motor oper
connecting the mechanism of this ?rst bomb to ated bomb releasing mechanisms, a ?uid motor for
each of said mechanisms, a distributor for each of
30 the next is isolated by- the closure of the valve 32.
If it is desired to release a ?rst bomb from said motors, a source of ?uid under pressure, a
each wing, the operator after having opened the conduit for connecting the said source of ?uid
selector valve 51 operates on the expansion valve with the said distributor, a member for cutting of!
56 in order to send through the ducts 58 and 58a, the pressure of ?uid in the said conduit, a ?rst
the compressed air which passes through the con
valve in the said distributor, a spring for acting
duit 34 of the bombs A of each wing and oper
upon the said valve to normally close the com
ates in the cylinder 25 in order to displace the munication between the said conduit and the said
piston 21 and the rod 28. The latter in its move
motor, a second valve in the said distributor, a
ment moves the lever 2| which in its turn actu
second spring for acting upon the said second
40 ates the rod 20, the lever l1 and the rod l6 which valve to normally open the latter and establish
disengages the pull out piece 14 from the lug l2 the communication between the said conduit and
of the bomb. During the movement of the rod 28 the driving means for the bomb release mecha
the tappet 50 rocks on the boss 52.
nism to be actuated next, a positive connection
So long as the operator bears on the expansion between the said ?rst and second valve, means for
automatically locking the said ?rst and second
45 valve 56 the piston 21 remains at the bottom of
its stroke and a single bomb from each wing is - valve after a movement of these valves against the
opposing action of the said ?rst and second spring,
As soon as the operator ceases his action on
and means associated with the motor co-operating
the valve 56 putting the channels 58 and 58a and with the said distributor, for unlocking the said
60 the cylinder 25 of the mechanisms of the bombs ?rst and second valve when the pressure is cut off
A of each wing in communication with the atmos
in the said‘conduit upon operation of the said
phere, the piston 21 returns to its original position motor.
urged by the action of the spring l9 actuating
2. In a ?uid operated remote control device for
the lever H. -The return movement of the pis
successively actuating on board an aeroplane, 'a
number of bomb release mechanisms by means of
55 ton 21 causes the tappet 50 to act onthe boss 52
pushing back the bolt 4| against the action of the ?uid motors, a ?uid operated motor for each of
spring 42 while disengaging the said bolt from the said mechanisms, a ?uid distributor associ
the groove 44. Under the action of the springs ated with each of the said motors, a source of ?uid
31 and 36 the valves 32 and 3| take up their under pressure, a conduit for connecting the said
60 position shown in Figure 2. The valve 3| is then
source of ?uid to the said distributor, a member
closed cutting off communication between the for cutting off the pressure in the said conduit,
cylinder 25 and the conduit 34 whereas the valve valves in the said distributor for being simultane
32 is opened establishing communication of the ously actuated against the opposing action of
conduit 34 with the conduit 35. During its move— resilient means and for‘alternately opening the
65 ment the rod 33 operates by its end 48 on the stop
communication between the said conduit and the
'41 of the lever 45 which falls and takes up the said motor, and with the controlling means of the
position shown in Figure l and is held in this
bomb release mechanism to be actuated next, a
new position by the action of the ball 49.
rod for operating the said valves, an annular
In this latter position of the valves of the mech
groove in said rod, a loaded bolt provided trans
of the said rod and subjected to the action
pressed ?uid can now pass to the mechanism of
the bomb B of each wing while passing through of a spring to engage‘ automatically the said groove
the channels 58 and 58a, conduits 34 and 35 and when the said valves are driven and are estab
the tubes 59 and 59a. A fresh action of the lishing the communication between the said con
75 operator on the expansion valve 56 in order to duit and the said ?uid motor, a cylinder for the
said ?uid motor, a piston in this cylinder, means
opposing the displacement of the said piston, a
piston rod for the said piston, a loaded pawl
pivoted .to the said piston rod for acting upon the
means for actuating the said controlling members
by the action of fastening a bomb to the said
mechanism and for opening the communication
between the said conduit and the said motor cyl
said bolt and for disengaging the latter when the
pressure is cut off in the said conduit upon opera
tion of the said ?uid motor, and means moved by
the action of fastening a bomb to the said mecha
inder, and means subordinate to the pressure cut
oil in the said conduit for closing the connection
between the latter'and the said cylinder and for
opening the communication between the said con
nism, for operating the said valves.
duit and the controlling means of the bomb release .
3. In a ?uid operated remote control device for
actuating successively, on board an aeroplane a
mechanism to be actuated next.
4. In a remote control apparatus for succes
number of ?uid motors driving each a bomb re
sively actuating bomb-release mechanisms of an
lease mechanism, a base for the said mechanism,
a recessed support secured to the said base for
15 engagement by an eye associated with a bomb to
be released, a transverse aperture in the said eye,
a transverse aperture in the said recessed support,
a pull pin engaging the aperture in the said re
cessed support and the aperture in the said eye, a
20 motor cylinder supported on the said base, a pis
ton in said cylinder, resilient means opposing the
movement of the said piston, a piston rod asso
ciated with the said piston, a linked connection
for uniting the said piston rod to the said pull pin,
25 a ?uid distributor integral with the said cylinder,
air-craft controlled by ?uid motors, a source of
compressed ?uid and a conduit for connecting the
motors with said source, a member in the conduit 15
for cutting o? the pressure of the ?uid, a bomb
support for each of the bomb-release mechanisms,
a ?uid cylinder for each mechanism, a movable
member in said cylinder for actuating said mech
anism when moved under the action of the ?uid, 20
a spring acting on said movable member to return
it to its normal position, a three-way distributor
for providing communication of said motor with
said conduit when arranging a bomb in position,
means provided on said movable member to act 25
a source of ?uid under pressure, a conduit for during the return stroke of the latter and cause
connecting the said source of ?uid with the said - said distributor to return into a position for estab
distributor, a member associated with the said lishing communication of the conduit with the
conduit for cutting oil.’ the pressure of ?uid in the motor of the following mechanism to be actuated.
30 latter, controlling members in said distributor,
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