Abstract: The invention relates to a boundary light cartridge and a method for producing the same having a cartridge case (2) with a fitted projectile, a propelling charge powder arranged inside the cartridge case (2), and an ignition assembly for the propelling charge power, whereby the cartridge case (2) has a circumferential radial indentation (10) on the base (3) thereof in which the ignition assembly is arranged. In ignition assemblies which lack harmful substances, the invention provides that the base (3) of the cartridge case is pressed inward at least in partial areas in order to guarantee a complete and uniform reaction during short ignition times of an ignition assembly. As a result, the opening (13) of the indentation (10) is reduced in size toward the interior of the cartridge case (2).

Abstract: A locking and unlocking mechanism for moveable control fins extending from the surface of a missile. The locking mechanism includes a pin extending thru the outer surface of the missile into an opening provided in the movable fin. A link is pivotally connected between each of the pins and a slide member disposed internally of the missile and carried by a guide. The links are in a close to dead center position when the pins are extended into the openings in each of the fins. A striker assembly is disposed within the slide member and includes a rod carrying a hammer which is spring loaded spaced from the slide member when the pins are in their extend position.

Abstract: The present invention relates to a method and a device designed for use with such shells (1) that are equipped with a base-bleed unit (8) for extended range and which during the first phase of their trajectory are spin-stabilised but which in the subsequent phase are subjected to spin deceleration by fins (9-13) that deploy from the shell body and take over the stabilising function. More exactly the present invention is a method and a device that enables the said shells (1) to achieve an effective and functional deployment of the fins (9-13) at the desired point in time with simultaneous ejection of the base-bleed unit (8) which at this point in time either no longer performs any useful function since it is burnt-out and solely constitutes a dead-weight or its function is no longer required.

Abstract: A projectile for use in hunting is formed of a hard tapered first body, and second and third bodies disposed behind the first body. The three bodies are connected together by an axial stem extending rearwardly from the first body and a securing nut threaded onto its end to attach the bodies together. A chamber in the second body is closed by the first body. When the first body impacts a hard object, the chamber and air therein are pressurized to cause explosion of the second body to generate shrapnel. The outer surfaces of the second and third bodies have helical grooves for guidance and spinning of the projectile. At a rear end of the projectile, the outer surface is provided with an annular smooth area to fit complementarily with the smooth interior surface of the gun barrel, to prevent leakage of combustion gases.

Abstract: This invention provides a projectile assembly (10) having a body part (14) including a trailing portion (19) which reduces in diameter rearwardly and supports a sealing band (16) having a substantially cylindrical outer face for engagement with the bore (21) of the barrel (11). The body part (14) may move rearwardly through the sealing band (16) to expand it outwardly into sealing engagement with the bore (21). Upon firing the body part (14) moves forwardly relative to the sealing band (16) to free it from the bore (21).

Abstract: The present invention relates to a method and a device relating to shells with deployable fins and which are fired from large caliber guns into ballistic trajectories, for preventing the propellant gas pressure in the barrel during firing from directly or indirectly deforming the said fins (9-13). The type of fins that the present invention primarily relates to are those that are deployed on command in order to fin-stabilize the shell. Usually such fins are protected prior to deployment by an ejectable fin protector (19). To prevent this fin protector from being deformed and consequently impeding fin deployment or degrading fin functionality, the present invention proposes that all unoccupied space inside the said fin protector be filled with an inert, noncombustible, non-glutinous substance (32) of low compressibility and very low inherent strength.

Abstract: An exploding thin film bridge fracturing fragment detonator comprises a base layer with a bridge layer vapor deposited, e.g., sputtered, thereon. The bridge layer is comprised of an electrically conductive material and includes a bridge portion which interconnects significantly larger portions of this layer. An inorganic insulating layer of rigid fracturing material is vapor deposited, e.g. sputtered, on the bridge layer. A flyer layer is vapor deposited on the insulating layer, whereby the flyer layer is insulated electrically and/or thermally from the bridge layer. The flyer layer is sputtered directly over the bridge portion and is of a mass sufficient for at least a portion of the flyer layer and any associated insulating material that is fractured off therewith to be sufficiently propelled by an explosion of the bridge so as to cause the initiation by shock of a designated acceptor explosive (i.e., a secondary explosive).

Abstract: Anchoring of a spin-stabilized projectile with a sabot body is provided by grooves arranged on the fin-stabilized projectile, which are engaged by ring-shaped protrusions provided in an axial bore of the sabot body. The distance of the first protrusion from the predetermined breaking points of the sabot body and the height of the protrusions are selected in such a way that the deformation at the predetermined breaking points in case of assembly-related spreading of the segment lies in the resilient range.

Abstract: A composite tubular article such as a nozzle or a polar boss for a rocket motor wherein straight matrix impregnated yarn portions extend from one end portion to the other in a non-cylindrical ply to achieve increased strength while affording lighter weight. The matrix material may be at least partially curable by actinic radiation to anchor the yarn portions in position as they are applied on a mandrel so that radial rods or the like for anchoring the yarn may be eliminated. For high performance rocket motor nozzle components and the like, the yarn portions may be straight or non-straight and applied by braiding or the like, and the matrix material may be decomposed to a char adequate to anchor the yarn portions and subjected to one or more densification cycles whereby the matrix material may be carbonized.

Abstract: A method for the manufacture of a projectile for small-bore weapons ammunition comprising the steps of producing a plurality of compacts from a mixture of a heavy metal powder and a light metal powder at room temperature, and without further treatment of the compacts, introducing the compacts into a metal jacket one at a time, including pressing each compact into the jacket with a pressure sufficient to ensure substantially complete filling of a respective portion of the jacket by each compact before introducing a further compact into the jacket. The compacts fill less that the entire volume of the jacket, leaving a portion of the jacket void of compacts. Prior to the pressing of the last of the compacts introduced into the jacket, a disc having an outer diameter substantially equal to the internal diameter of said jacket adjacent the open end thereof is introduced into the jacket.

Abstract: An integrated system for missile steering, which uses both jet reaction control (JRC) and aerofin control systems, is provided with a variable coupling mechanism for adjusting the relative responsiveness of the two systems in accordance with the pressurization state of the JRC system pressure chamber. In one embodiment, the pivoting action of a joystick which actuates the gas flow control pintles of the JRC system is permitted only under sufficient pressurization of the pressure chamber. In a second embodiment, the extent to which the pintles protrude from their controllable housings is adjusted according to the pressure in the pressure chamber. In this manner, when JRC is undesirable or is unavailable, the missile aerofins are permitted their full range of motion without being constrained by the pintles.

Abstract: A multi-stage gas generator comprises a housing with an outer wall and also inner walls, at least two combustion chambers filled with at least one propellant charge, one igniter each associated with a propellant charge for the independent activation of each propellant charge, and at least one thermal insulation arrangement between the propellant charges. The arrangement reduces a transport of thermal energy, generated on the ignition of a propellant charge, to the other non-ignited propellant charge to such a high extent that the non-ignited propellant charge remains below its autogenous ignition temperature. Instead of or additionally to the thermal arrangement a cooling arrangement may be provided.

Abstract: The precursor-follow through kinetic energy explosively formed penetrator assembly greatly enhances target penetration. It is formed of two sections: an initial precursor penetrator followed by a penetrator encapsulating a reactive material. The target will initially be perforated by the precursor penetrator with the second follow through penetrator containing a reactive material causing internal damage through a secondary reaction.

Abstract: A bullet comprised of a jacket of malleable metal having a closed nose portion and a rear end portion defined by a cylindrical wall, the closed nose portion having wall-weakening areas encapsulating a forward core made of a deformable material which promptly deforms, collapses axially, and expands radially to a substantial extent along with the weakened wall areas, when the bullet strikes a target. The nose portion has wall-weakened areas which are ruptured by the core material to produce a collapsing and radially expanding action. These weakened wall areas are in the form of longitudinally extending, deep, internal or external, circumferentially spaced grooves with underlying web areas which are ruptured by the core material, to produce the collapsing and expanding action. This core is preferably made of rubber, urethane, silicone, or one of a substantial number of plastics, each of which has a hardness within a range of Shore A 20 to Rockwell 122.

Abstract: Shotgun cartridge cases are disclosed which are produced from a unitary body of plastic material. The shotgun cartridge cases include a cylindrical wall with a based portion which includes a central opening adapted to receive a primer, and a number of grooves extending axially from the end plane of the cartridge case and defining displaceable regions of the base portion whereby these displaceable regions are axially displaceable by means of powder charge gases released by the cartridge. Shotgun cartridges are also disclosed.

Abstract: Kinetic energy projectiles including sabots having stiffened bourrelets which tune and improve shot performance. Shot dispersion for the projectiles is decreased by reducing adverse dynamic perturbations imparted to the projectiles during projectile launch. Reducing dynamic perturbations is accomplished by better controlling interior ballistics by changing the stiffness of the sabot bourrelets.

Abstract: An improved center high-mounted stoplight apparatus for a motor vehicle or other transportation apparatus. The apparatus includes a pulsating or flashing mode of operation used to indicate rapid deceleration of the vehicle. This pulsating or flashing mode is in addition to the regular continuous mode of operation used for normal braking and deceleration and is arranged to be of a maximal human visibility and attention-capturing operating cycle. A plurality of different signaling arrangements to a following vehicle including an incandescent lamp, a gas tube lamp, light-emitting diode devices and non light-based signaling are also contemplated. Additionally included is a maximal distance spanning attention-capturing operating mode entered into in response to, for example, a collision-related deceleration event and maintained over a prolonged operating time or until manually disabled.

Abstract: The present invention includes an attachment apparatus comprising a rotation limiting member adapted to be threaded onto a threaded member; and a preload nut adapted to be threaded onto the threaded member. The rotation limiting member comprises a plurality of pins, and the preload nut comprises a plurality of slots, preferably wherein the plurality of pins and the plurality of slots are the same in number, which is preferably three. The plurality of pins of the rotation limiting member are filled into a corresponding plurality of slots of the preload nut to form a rotatable unit adapted to be threaded onto the threaded member. In use, the rotatable unit is threaded onto the threaded member. The present invention thus provides a unitized removable device for holes, including holes other than circular in shape, which have an established depth before an end of, or before an enlargement of the hole.

Abstract: A method for repairing scratches, dings, gouges or other minor imperfections in finishes applied by flame spraying, fluidized bed, hot flocking, electrostatic spray or electrostatic fluidized bed, which comprises dissolving a coating material in a suitable solvent, applying the resulting solution to a selected area, evaporating the solvent, and, optionally, curing the coating material.

Abstract: A leveled load is carried by a support on one of the exterior surfaces of a pair of outer wedges maintained in parallel spaced relation to each other by an intermediate activating wedge to which selective horizontal displacement is imparted relative to the outer wedges for vertical adjustment. Such selective displacement is imparted by rotation of a screw bolt threaded through a centering pin held in non-rotatable relation to the intermediate wedge in vertical alignment with the load support.