Abstract: An explosive projectile comprises a casing, having a neck shaped portion adjacent to the opening, a female screw thread being formed in the internal wall of the neck shaped portion, and a region of increased average internal diameter in its inner wall beyond the screw thread, a charge of high explosive material partially filling the space inside the casing, and a case located between the charge and the neck shaped portion the case defining a detonation device cavity, the case being made of a malleable material and being swaged into the neck shaped portion and into part of the region of the internal wall of the casing which has an increased average internal diameter.

Abstract: A reactive armour construction comprises a rigidly fixed outer layer and a relatively loosely fixed inner layer mounted on a structure to be protected in such a way that when a projectile penetrates at an oblique angle the outer layer and is incident upon the inner layer, the inner layer is allowed to move laterally relative to the outer layer thereby disrupting the line of attach of the projectile.

Abstract: A composite armour comprises a forward metal armour plate, a metal armour backing plate spaced from and generally parallel to the forward armour plate and between the forward armour plate and the armour backing plate an array of armour layers each inclined at a substantial angle to the plane of the backing plate.

Abstract: A tubular projectile suitable for use in training ammunition comprises a hollow tube having formed in the rear end of the tubular wall thereof a recess in which is embedded a tracer material.The projectile may be sabot launched.Constructions are described for igniting the tracer material directly or indirectly from the gases produced by burning of the main propellant charge when the projectile is fired from a gun, e.g. the RARDEN Gun of the Applicants.Example of suitable tracter materials and techniques for filling the said recess with them are also described.

Abstract: A composite armor system comprises a homogeneous metal armor plate and a plurality of reactive armor panels, each said panel comprising a forward layer, an intermediate layer of explosive material and a rearward layer, the homogeneous armor plate being formed with a plurality of recesses in its forward surface and the rearward layer of each reactive armor panel being received in a respective one of said recesses.

Abstract: An explosive package for use in reactive armor comprises an explosive material embedded between layers of a resilient material which are contained between upper and lower rigid plates in a sandwich structure. A construction for the application of reactive armor to a structure to be protected comprises a plurality of such packages, a plurality of projections attached to the said structure and a plurality of holders each attachable to and thereby running between adjacent projections, each of the holders in use holding an edge of one of the said packages, each projection thereby being attached to at least one of the said packages by the holder attached thereto.

Abstract: A composite armour comprises an outer layer of metal, an inner layer of metal, and therebetween an intermediate non-metallic layer, wherein there is provided along an edge of the intermediate layer a deflecting strip of metal, said deflecting strip presenting towards the edge of the intermediate layer a face which is inclined at an oblique angle with respect to the surface of the inner layer.

Abstract: An explosive projectile comprises a projectile casing, a high explosive charge filling a portion of the space inside the casing, an impervious case defining a detonation device cavity adjacent to a surface of the explosive charge, and located adjacent to the said surface of the explosive charge between the inside wall of the projectile casing and the impervious case, a pre-formed solid elastic sealant ring such that the seal effected by the sealant ring between the projectile casing and the impervious case is tightened if the pressure on the sealant ring from the material of the explosive charge increases.

Abstract: The application discloses improvements in hollow charges for linear cutting or demolition purposes wherein a bar formed from a composite of explosive material and a first pliant material has a V-shaped groove with a liner formed from a composite of particulate metal and a second pliant material. The metal may be copper and preferably the first and second pliant materials include the same constituents. The charge may include a casing having a spacing portion having an engagement surface for presentation to a work surface, which engagement surface is parallel to the outer edges of the liner and spaced therefrom to maintain an optimum stand-off distance. The casing may further include a groove filling portion of low density material which may be integrally constructed with the casing from a flexible material such as expanded polyethylene.

Abstract: A riot control weapon comprises a barrel, a fixed breech block, and there-between a chamber having a loading aperture through which a cylindrical round of ammunition can be inserted and ejected, the round being insertable by firstly a translational movement to bring the forward end of the round into the chamber, and secondly a rotational movement during which the round is pivoted until the round is fully chambered in alignment with the barrel, and wherein the chamber is provided with an obturating surface which extends continuously from a point adjacent the forward end of the chamber adjacent the loading aperture, rearwardly and away from the loading aperture to complete a closed loop within a cylindrical surface internally of the chamber, whereby the said rotational movement brings the round into sealing contact with the obturating surface around a complete loop.

Abstract: A riot weapon comprises a barrel; a fixed breech block; and therebetween a chamber having a loading aperture through which a round of ammunition can be inserted so as to rest against the breech block, or ejected; a loading catch for retaining a round of ammunition in the chamber; a trigger; a firing pin which can be actuated to fire a round of ammunition by moving the trigger, the firing pin having a normal rest position in the breech block; means for preventing release of the loading catch except when the firing pin is in the rest position; means for releasing the loading catch automatically following actuation of the trigger; and means for exerting a force on the round of ammunition in a direction such as to effect ejection thereof through the loading aperture; whereby following firing of a round of ammunition and consequent release of the loading catch, the spent round is retained in place against the ejecting force solely by the frictional force between the spent round and the breech block, the frictional

Abstract: A cylindrical housing for a shock-augmenting charge is provided with axially extending grooves in its outer wall to enhance its radial detonation capability. When used in a cylindrical warhead for augmenting detonation of a main charge of insensitive high explosive, full detonative output is enabled and in addition, a flatter detonation wavefront is generated within the main charge, thereby reducing the need for supplementary waveform shapers.