Abstract: Inserts for cutting charges utilized for the shearing or separation of steel plates, cables, bridge girders or the like. The cutting charges are provided with a hollow space in which there are adhered liners or inserts of multi-component structure so as to develope a primary detonating effect in a symmetrical plane. For military purposes the cutting charges have gabled roof-shaped or semicircular inserts, preferably of inert material or metal, such as electrolytic copper.

Abstract: A firing cap assembly has an interior percussion charge for producing a fire jet along a path in a predetermined direction which extends generally from one side of the assembly towards the other side thereof. The assembly is inserted into a casing having a base wall which extends across the path of the fire jet, and side walls which extend generally along the predetermined direction and which have bendable wall portions at said one side of the assembly. The casing and the assembly mounted therein are both inserted into a cavity of a firing cap carrier having bendable flange portions at said one side of the assembly. The flange portions are bent in direction generally transversely of the predetermined direction to a position in which the wall portions are located intermediate the flange portions and said one side of the assembly so as to form a corner region with said one side of the assembly.

Abstract: A firing cap is located in a housing and produces, when detonated, a fuse-igniting fire jet. A firing pin mechanism is provided for impacting and detonating the firing cap. An arrangement is provided which extends across the path of the fire jet and which includes passages through which the jet is compelled to pass to thereby control the behavior of the jet.

Abstract: A detonator which is protected against triggering by shock waves or the like has a housing, a firing cap in the housing and a firing pin movable lengthwise in the housing and having a free end adapted to impact the firing cap. A biasing spring permanently biases the firing pin towards the firing cap, and a firing-pin retainer is provided in form of a spring-wire clip having a circumferentially incomplete retaining portion located in the housing and received in an annular channel composed of two registering annular grooves formed in an outer circumferential surface of the firing pin and a juxtaposed inner circumferential surface of the housing.

Abstract: A watertight and corrosion-resistant percussion igniter has a housing, a percussion cap in the housing and a firing pin mounted in the housing and having a free end spaced from and adapted to impact the percussion cap. A one-piece tubular holder surrounds the firing pin and has at least one transverse hole, and a retaining member is located in the hole and engages in a depression formed in the firing pin. A biasing spring biases the firing pin towards the percussion cap and makes the free end of the firing pin impact the cap when the retaining member becomes disengaged from the depression so that the firing pin can move relative to the tubular holder.