Abstract: A pyrotechnic signal cartridge comprising a cartridge case, a projectile e detachably secured to the cartridge case, a charge in the cartridge case for launching the projectile case, rocket motor thrust means positioned within the projectile case, a rocket motor propellant charge and a pyrotechnic signal charge in the projectile case, ignition means for the pyrotechnic signal charge and the rocket motor propellant charge whereby ignition of the pyrotechnic signal charge and the rocket motor propellant charge after launching of the projectile case provides a self-levitating pyrotechnic display.

Abstract: The core of a light-water reactor which is enclosed in a prestressed concrete pressure vessel and held within a diffuser basket is supported by a device consisting of a cylindrical shell which surrounds the basket and is rigidly fixed to a plurality of frusto-conical skirts having concurrent axes and located substantially at right angles to the axis of the reactor core. The small base of each skirt is rigidly fixed to the shell and the large base is anchored in openings formed in the reactor vessel for the penetration of coolant inlet and outlet pipes. The top portion of the shell is secured to the top portion of the diffuser basket, a flat surface being formed on the shell at the point of connection with each frusto-conical skirt so as to ensure rigid suspension while permitting of thermal expansion.

Abstract: Sintered nuclear fuel pellets of improved dimensional stability under irradiation are produced by controlling the production of voidage in the pellets during manufacture of the pellets.

Abstract: A method of assembling munitions and delivering a payload within a munition o a target area at low altitude wherein the energy source for arming the fuze is self contained within the mechanism and utilized subsequent to release of the munition from the delivery means.

Abstract: A trigger device for fire arms, particularly for competition fire arms, comprising an intercept latch having a contact surface pivotally connected in a trigger housing and releasably holding a firing element, a pivotally connected trigger latch having a contact surface and holding said intercept latch by its contact surface, a trigger lever, said trigger latch mechanically responsive to said trigger lever, a pivotally connected spring-biased lowering element in said trigger housing having a contact surface which engages the contact surface of said intercept latch and lowers said contact surface of said intercept latch onto the contact surface of said trigger latch so that said contact surface of said intercept latch rests on the contact surface of said trigger latch only just prior to complete actuation of said trigger latch which moves said trigger latch from out of engagement position with said intercept latch whereby said intercept latch is caused to drop out of holding position of said firing element wher

Abstract: A rifle with a cylinder lock comprising a receiver, a breech bolt with a firing member, a trigger, and a spring actuated sear which in an operating position is in locking engagement between a shoulder on it and another shoulder on the trigger, the sear being depressed at firing by the firing member into an inoperative position, a safety mechanism having an "on" and an "off" position and cooperating with a ledge on the sear to lock the sear in either the operative position or in the inoperative position depending on the condition, that is locked or released, of the trigger.

Abstract: The shell includes a core wedged rearwardly in a shoe and attached by a glue joint to a destructible plastics skirt fixed to the shoe. The invention is particularly useful for small or medium calibre shells.

Abstract: A propellent-charge cartridge case which comprises a cartridge-case stub which has a cartridge-case wall and includes at least one part provided with a resilient gas check which can be pressed against a barrel wall. The cartridge-case wall is formed with an annular groove cut from the outside into the cartridge-case wall which weakens the cross section of the wall. A resilient insert fills the annular groove so that as gas pressure builds up within the cartridge case upon firing, the cartridge case stub is deformed in the region of the annular groove so as to reduce the size thereof and squeeze the insert out of the annular groove in gas-sealing manner against the barrel wall.

Abstract: A nuclear reactor plant comprising at least two hydraulically separated but thermally interconnected heat conveying circuits, of which one is the reactor circuit filled with a non-water medium and the other one is the water-steam-circuit equipped with a steam generator, a feed water conduit controlled by a valve and a steam turbine, and a control system mainly influenced by the pressure drop caused in said feed water conduit and its control valve and having a value of at least 10 bars at full load.

Abstract: This invention which is a surface to surface anti-tank missile following a modified ballistic trajectory incorporating a guidance computer system with manual setting (ascending mode) and infrared optical system (descending mode), solid fuel rocket motor and a shaped charge high explosive warhead is designed as an effective and inexpensive means for the destruction of armored vehicles.

Abstract: A model rocket, the nose cone of which is ejected clear of the rocket body after the rocket has spent its fuel, including means for replacing the ejected nose cone during flight with another nose cone and means for altering the configuration wing elevator during flight thereby converting the rocket to a glider.

Abstract: An electric fuze, especially for hand grenades, having a power source which is activatable by the effect of a force for supplying output power and a delay unit for delaying the ignition of a primer with respect to the time of activation of the power source. The delay unit has a variable time constant and includes an RC circuit formed of a plurality of series or parallel connected resistors and/or capacitors which are functionally connected with one another by electrical leads which leads are arranged to be open-circuited for the purpose of changing the delay time in a predetermined manner.

Abstract: A gun-fired spin-stabilized projectile of good aerodynamic shape (i.e. with a long forward tapering section) is centered in the gun barrel at its forward end by means of a series of circumferentially spaced apart permanently fixed radially extending projections, and at its rearward end, by means of either the maximum diameter of the projectile body or by means of a driving band mounted on a rear portion of the body. In the latter case, the maximum diameter of the projectile body is slightly less than the diameter lands of the gun and the driving band is constructed in such a manner as to be separated from the body after firing by centrifugal force and air drag.

Abstract: Vanadium carbide is present in the particles as supersaturated solid solution and the particles are coated with a thin porous layer of vanadium carbide.

Abstract: Normally disabled electrical and mechanical devices are caused to be enabled to operate by remote control signals having predetermined distinctive characteristics, such signals originating from enabling control equipment transported by an authorized person or persons. Receiving equipment providing output enabling signals only in response to received signals having the predetermined distinctive characteristics is preferably made integral with the mechanical or electrical devices involved and is coupled through appropriate electronic or electromechanical devices to the disabling means in the mechanical or electrical devices to be enabled.

Abstract: An air droppable sealed warhead cannister capable of housing a plurality of omblets, each bomblet having a pressure-sensitive fuze capable of being controlled by the presence and absence of a predetermined pressure in the cannister.

Abstract: A nuclear reactor with a reactor core having a plurality of individual core elements is provided with a clamping device for at least some of the core elements, which clamping device includes a plurality of pawls pivotally mounted to the interior of each wall of the hexagonal outer wrapping tube for movement between a position within the wrapper tube and a position extending through an adjacent hole in the side wall of the wrapper tube, and an operating tube axially slidably mounted within the wrapper tube for moving the pawls between their two positions. When the pawls are extended by the operating tube, they will move outwardly a predetermined distance transversely of the core element to cooperatively engage other core elements and clamp the assembly. A lock mechanism is provided to lock the operating tube and wrapper tube in one position of the pawls, preferably the withdrawn position, to assist in inserting and removing the core element.

Abstract: A device for safe containing mini-charge rounds and controlled dispersal of he rounds by tiers into a swarm of desired size and density when actuated by a fusing signal. The device utilizes chambered gas in a series of metered pressure drops to inflate diaphragms and develop controlled forces. These forces are imposed upon the mini-charge rounds to deploy the rounds from each tier by lateral force into radial patterns expanding at different rates to provide the pattern density required.

Abstract: Two articulated props for a firearm are lockable in a firing or in a carrying position by a finger on the upper end of the props. A spring urges the finger into one or the other of two radial recesses provided on a trunnion protruding laterally from the firearm. The props can be unlocked by exerting a pull on the free end of the props so that the finger emerges from the recess.

Abstract: An automatic firearm having a bolt which recoils upon each shot and an additional mass mounted for sliding parallel to the bolt and fastened to the bolt by an amplifying lever which is pivotally mounted on the bolt by a transverse pin and which has a resting surface adapted to come into contact with a stop surface which is stationary at the start of the recoil of the bolt. The amplifying lever is H-shaped. The cross bar of the H constitutes the transverse axis of pivoting of the assembly of the lever and the two vertical uprights constitute two symmetrical unit amplifying levers operating in parallel each capable of assuring a proper fastening together of the bolt and the additional mass. The assembly of the amplifying lever has complete symmetry with respect to the central plane perpendicular to its axis of pivot and lends itself to continuation of the firing in case of the breaking of one of the unit amplifying levers.