Thomson-brandt Armements

Jean Boucard

Andre Winaver

Jean Deliance

Jean Holtz

Andre Delaitre

Denis Beaufay

An electropyrotechnic device for sequentially triggering the operation of a battery of gas generators. The ignition of double-base propellant blocks is obtained by the combination of EFI and an IFOC, arranged so that the airtight barrier between the cavity containing the donor secondary explosive and the downstream chamber containing the secondary receiving explosive is only one part of the closing element of the back end carrying the nozzles, integral with the ring. The control electronics of the EFI are contained inside a housing capping the back end of the powder generator with the entire system being closed by a cap.

System using an electropyrotechnic device intended to trigger the

The disclosure concerns the field of charges releasable from an aircraft to which they are fixed and, particularly, the keel beam safety device that prevents the activation of the charge when it is hooked on beneath the aircraft. A mechanical safety device for the keel beam consists in using the driving force of a sensor that is rotationally free in a support, by means of cable going into said sensor, one end of which is fixed to an aircraft and the other end to means for activating a fuse for the firing of a charge. To this cable, there is fixed a ball which, when a tensile force is exerted on the cable, comes into contact with the sensor and draws it, after the unlocking of the holding system, through a sufficient tensile force exerted on the cable, into contact with the aircraft when the charge is fixed beneath the aircraft, thus preventing any additional movement of the cable. When the charge is released, the cable can be pulled freely and enables the charge to be activated. The disclosure can be applied to bombs where the firing fuse is screwed in along the axis of the bomb, and to all bombs of the MK type.

Safety device for releasable airborne charge

A charge releasable from a carrier, such as a charge having to be activated at the moment of release, is provided with an activating device with a safety system to prevent its untimely activation. The triggering means are activated by means of the activating device comprising a cable connected to the carrier. At the moment of release, the cable controls the activating device which initiates the triggering means by means of an internal mechanical link. All the elements are placed inside the charge. Moreover, the activating device constitutes a safety device to prevent the activation of the charge so long as it is not released.

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Boulogne, France

Jean Boucard