Abstract: A training projectile having an auxiliary drive mechanism for counteracting the aerodynamic resistance to which the projectile is exposed during the training flight phase of projectile travel. The auxiliary drive mechanism preferably is in the form of a rocket or jet drive. The training projectile is also provided with a mass so that the ratio of the resultant axial force to the mass of the training projectile is at least approximately equal to the ratio of the resistance force to the mass of a corresponding live projectile during the training flight phase.

Abstract: A cartridge case assembly of the type constituted by internal wad, external extruded tube and intermediate body or welding mass, so characterized because the wad provides a house or cylindrical cavity hollow at the head side, in which a base element includes a promontory in peak form extending toward the head from a longitudinal shaft portion on which the fulminate rests, all gathered by the intermediate welding mass that fusion-weld the case with the wad, embracing the latter in such a way that the fulminate is included within it, forming an integrating monobloc of case, wad and fulminate, so that within the space of the fulminate housing appropriate weight and gas communication between the container chambers of the gun-powder adjacent to wad are provided.

Abstract: A missile is initially propelled through space by the burning of solid fuel in a combustor. The heat produced by the combustion of such fuel is used to vaporize a liquid, the pressurized vapor being used to pump liquid fuel to the combustor after the solid fuel has been depleted.

Abstract: A detonator having an open-ended metal jacket containing a small explosive charge remotely ignited through a pair of wires extending through one end of the jacket. The explosive charge projects toward one end of the jacket thereby forming an air gap between the explosive charge and the jacket. The air gap absorbs and attenuates the explosive shock so that relatively thin jacket walls are of sufficient strength to withstand detonation of the explosive charge, thereby making the detonator incapable of causing bodily injury. The detonator can be used to ignite a detonating cord by inserting the cord through the open end of the jacket into a jacket cavity until the explosive core of the cord contacts the projecting charge with the casing of the cord occupying the air gap to enclose the explosive charge.

Abstract: Four spoiler blades are pivotally mounted at the nozzle exit end of a rocket motor with opposed pairs of said spoiler blades connected to a single control means for positioning one or the other of said opposed pairs of spoiler blades in the nozzle exit thereby to position the rocket motor responsive to the exhaust gases impacting upon the spoiler blade.

Abstract: A missile system with geometric constraints having a plurality of booster ages in tandem and carrying a segmented payload which is situated in the annular area between the last stage booster motor, which is smaller in diameter than the booster motors of preceding stages, and the missile skin.

Abstract: The invention provides a pyrotechnic device comprising a casing containing an electrically-operable ignition device for igniting a charge, the ignition device comprising a base and an electric igniter head electrically connected to two spaced and mutually insulated terminals in the base. One terminal is disposed centrally within the base and the other terminal is located, at least in part, on the periphery of the base. The base is fitted within an opening in an electrically-conductive wall of the casing, the other terminal making electrical contact with this wall. Means are provided to prevent the ignition device from being ejected from the casing under the shock loading resulting from ignition of said charge.

Abstract: A fluorescent lamp support assemblage comprising a printed circuit board on which is pre-mounted the electrical components comprising a converter or the like for supplying proper power to operate the vehicle lights and a sheet metal member cut and bent into a channel-shaped form. The printed board and a pair of fluorescent lamp holders are secured in place on the respective side walls and base of the channel-shaped member by snap inserting a plurality of tabs on the printed circuit board panel into conforming slots in the side walls in the case of the circuit board and by snap inserting the opposite edges of an opening in the base of the channel-shaped member into a notch formed in each side of the lamp holders in the latter case.

Abstract: A harmonic converting or generating material, particularly adapted for use as chaff in decoy rounds, and a method of fabricating the same. The material is formed from metallic foil to have the characteristics of a dipole and which by the addition to the midpoint thereof of semiconductor or other polarizable material has the capability of reradiating incident frequencies along with radiating harmonics thereof or undesirable noise. Thus, the passive material, when activated by an active source, such as a radar unit, serves to convert or generate spurious frequencies, harmonics and noise, in addition to reradiating the fundamental frequency of the active energy source, thus giving the illusion of a plurality of independent energy sources.

Abstract: 1. A rocket comprising a rear section including a motor, a forward war head section, an intermediate trajectory control section, and a rotatable connection between said control and motor sections, a gyroscope and a gas generator mounted within said control section, the generator ahead of the gyroscope, said gas generator including ignition means, a first nozzle operable to deliver a wheel-driving gas stream to the wheel of said gyroscope, and a second nozzle operable to deliver an upward thrust in assistance of the flight of said rocket, the thrust being applied approximately in the zone of the center of gravity of said rocket, means operable in response to a predetermined set-back force exerted on said rocket during its launch to engage and support said wheel against said force only during the existence of said force, gyroscope caging means, and means to release said caging means in response to the operation of said generator.

Abstract: A fragmentation casing for shells, warheads and the like, in which pre-shaped fragmentations or splinters of hard or hardenable material are embedded in a supporting structure which is formed by a material that surrounds the fragmentations on all sides. This material is adapted in response to the ignition of an explosive charge provided in the fragmentation casing to disintegrate into individual particles to thereby release the pre-shaped fragmentations or splinters. The fragmentation casing includes a shell base body which within the region of a sleeve-shaped portion intermediate the rear portion and the head portion of the shell base body is provided with an outer recess which is cylindrical at least over a portion of the shell. Placed in this recess as a single layer are pre-formed fragmentations, primarily heavy metal balls, together with a material which is hardenable by sintering. These fragmentations placed in the recess are pressed into a supporting structure surrounding the fragmentations.

Abstract: The present invention relates to an ignitor assembly useful for detonating a charge of powder in an explosively actuated electrical connector. More particularly the ignitor consists of a shell member having a filled chamber propellant with an electrical heating wire extending through it and a conductive body member having a shell member-receiving cavity. An electrical circuit for heating the wire includes the conductive body and the electrical connector.

Abstract: A short-range projectile for practice ammunition having an axial air inlet duct emanating from the front end of the projectile and at least one outlet duct connecting the inlet duct with the jacket of the projectile. At least one of the inlet and outlet ducts are blocked during the initial flight path of the projectile by a blocking member displaceable in a chronologically controlled manner. The blocking member is displaceable in response to an air pressure head occurring during flight of the projectile from a starting position for preventing the influx of air from the inlet duct to the outlet duct to a final position wherein communication and influx of air from the inlet duct to the outlet duct is completely enabled.

Abstract: In a missile assembly (or the like) including a motor nozzle positioned in a central portion of a rear surface of the missile and a sustainer motor positioned a distance away from the rear surface of the missile, the invention comprising a blow pipe joining the sustainer motor and nozzle assembly, with the blow pipe including a portion extending along an axis which is eccentrically positioned with respect to the longitudinal axis of the missile.

Abstract: The display apparatus comprises a liquid crystal display element, a circuit board and electroconductive members interconnecting them. External terminals are formed on one substrate of the display element and input terminals are formed on the circuit board. The external terminals are electrically and mechanically interconnected by rigid electroconductive members through conductive films.

Abstract: Improved methods of cutting metal elements underwater wherein a shaped explosive charge cutting device has a quantity of externally disposed foam which reduces secondary damage to the cut metal edges.

Abstract: An improved method and apparatus for operating magnetic stepping-type mechanisms. The current flowing in the coils of magnetic stepping-type mechanisms of the kind, for instance, that are used in control-element drive mechanisms is sensed and used to monitor operation of the mechanism. Current waveforms that characterize the motion of the mechanism are used to trigger changes in drive voltage and to verify that the drive mechanism is operating properly. In addition, incipient failures are detected through the observation of differences between the observed waveform and waveforms that characterize proper operation.

Abstract: 1. Optical apparatus, comprising:A concave, substantially spherical reflecting surface;An image intensifier along the optical axis of said reflecting surface and having entrance and exit image faces, said exit face being substantially coincident with the focal surface of said reflecting surface;An optical objective system for producing an image substantially coincident with the entrance face of said image intensifier; andA partially reflecting, partially transmitting beamsplitter interposed between said image intensifier and said reflecting surface.

Abstract: A nuclear reactor system which produces useful thermal power and breeds fissile isotopes wherein large spherical complex slugs containing fissile and fertile isotopes as well as vaporizing and tamping materials are exploded seriatim in a large containing chamber having walls protected from the effects of the explosion by about two thousand tons of slurry of fissile and fertile isotopes in molten alkali metal. The slug which is slightly sub-critical prior to its entry into the centroid portion of the chamber, then becomes slightly more than prompt-critical because of the near proximity of neutron-reflecting atoms and of fissioning atoms within the slurry. The slurry is heated by explosion of the slugs and serves as a working fluid for extraction of heat energy from the reactor. Explosive debris is precipitated from the slurry and used for the fabrication of new slugs.

Abstract: A submarine explosive device for cutting anchoring chains or cables of sea mines. The device is towed through the water by a mine sweeping vessel via a towing cable. The device includes a gripper body which has a pair of parallel shank portions extending in the towing direction and defining a gripper mouth therebetween for catching the anchoring chains or cables of sea mines. A stabilization float is releasably connected to the gripper body. A release plate is mounted in the throat of the gripper mouth and is adapted to ignite an explosive charge mounted in one of the shank portions of the gripper body. The towing cable is removably mounted in a longitudinal groove extending through the gripper body. Towing cable protecting means are mounted in the other shank portion of the gripper body. The portion of the gripper body in which the explosive charge is housed can be sheared off the remainder of the gripper body when a predetermined force, applied to this portion of the gripper body, is exceeded.