Abstract: The present invention relates to an apparatus and method for clearing the uling black powder residues deposited on the electrical connectors of electrically detonated munitions. A female connector is provided with a recurved lanced outer spring clip which automatically scrapes off the residue on an insulator and contact surfaces of a male bipolar connector plug when the two connectors are rotated with respect to each other.

Abstract: A projectile for use as a range limiting type of projectile is provided. projectile is used with a selective cartridge in a smooth bore gun. This projectile has a body member and a connecting tail cone, which provides projectile roll and which provides velocity decay and high drag to limit projectile range. The tail cone has a conical outer surface which has a plurality of canted grooves.

Abstract: An improved reference sight mount device for use with a gun. The reference ight mount attaches to a gun tube having a mount receiving zone near the tube muzzle end. The mount includes a bracket for mounting a reference sight, and includes a band having a conformed internal diameter conforming to the receiving zone. The mount has an integral sight mounting bracket thereon and a lock for engagement with the gun tube. Three embodiments are described. In one embodiment, the mount receiving zone includes a shrink fit zone and the mount includes a conformed zone formed by a band having an internal diameter sized to expand upon heating and shrink into conformity with the mount receiving zone. In the preferred embodiment, the mount receiving zone includes a tapered press fit zone near the tube muzzle end and the band includes a tapered internal diameter press fit zone.

Abstract: A low-drag supersonic tubular projectile with self-contained thrust augmetion and capable of simultaneous dual internal air flows. One is a centrally located supersonic flow for providing low-drag characteristics, and the other a subsonic flow annularly arranged about the supersonic flow path, comprising a ramjet structure with solid fuel for deriving thrust augmentation enabling the projectile to achieve a terminal velocity which is substantially the same as or exceeding muzzle velocity.

Abstract: A short scan passive infrared remote sensor for detecting a target chemical pecies, located some distance from the center burst, includes a telescope for targeting a remote gas, a beam splitter means for splitting a beam from the target gas and sending one portion along a first path to an infrared detector and sending a second portion along a second path longer than the first path to the infrared detector. The second path is variable by providing a moving mirror a first distance away from the beam splitter which is 0.5 mm farther away from the beam splitter than the fixed mirror. By this arrangement, a mirror movement of only 0.5 mm is required to obtain an equivalent of 8 cm.sup.-1 spectral information for processing with time domain digital filters. The information from the infrared detector is converted from analog to digital and fed to a digital signal processor. The resulting interferogram is then filtered by a microprocessor using a FIR linear digital filter.

Abstract: An apparatus and method for producing a disposable composite laminate gun th polygon rifling and integrally fabricated conically shaped chamber section. A polygonal shaped barrel mandrel is joined with a radial segmented chamber mandrel, wound with alternate helical and hoop filament wraps, impregnated and cured to produce an inexpensive, light weight gun.

Abstract: The invention includes an apparatus for protecting plants from frost. A jet urbine engine has an input into which a first liquid and a second liquid are injected into the exhaust stream of the engine. The jet engine also has an exhaust nozzle supplying an aerosol of the first liquid microencapsulated in the second liquid. The aerosol is dispersed about the plants to be protected from frost thereby to form a mist which acts as a protective radiation barrier for the plants. The invention also includes a method for protecting plants from frost.

Abstract: A projected grenade simulator test circuit is used for checking the operaity of a grenade launcher system by exactly duplicating both the physical and electrical characteristics of an actual grenade.

Abstract: A cylindrical jacketed core explosive configuration with a circular tapered lyer plate operatively disposed in front of it produces a high velocity jet capable of penetrating hard materials. The charge assembly length is less than 1.4 times its diameter.

Abstract: A high explosive assembly and a method are disclosed for projecting a long od at high velocity with enhanced penetrating energy. The high explosive assembly has an elongated core of a first high explosive having a first Chapman-Jouguet detonation velocity, an elongated liner positioned substantially along the longitudinal axis of the core, and an elongated jacket of a second high explosive encasing the core and having a second Chapman-Jouguet detonation velocity greater than the core Chapman-Jouguet detonation velocity. The jacket high explosive, upon detonation, continuously initiates detonation of the core high explosive by an imposed oblique detonation front which converges toward the center of the detonating core with time, until a trailing mach stem emerges therefrom as detonation progresses.

Abstract: A round or cycle counter for a weapon which utilizes a wear member operatively attached to the surface of a moving member which slidingly contacts a surface of a non-moving member of the weapon. A visual change in the wear means size or wear pattern enables one to calibrate the number of rounds fired or the safe life limit.

Abstract: An optical oscillator uses a monochromatic light beam passing through a poelectric crystal subjected to acoustic vibrations which cause the emission of a diffracted light beam. The undiffracted beam is detected by photodetecting means and generates a first voltage signal. The diffracted beam is passed through a unit for delaying the passage of the beam, e.g. a fiber optics loop, and detected by photodetecting means to generate a second voltage signal. The signals are combined and fed to a control unit which allows a radio frequency signal to reach the piezoelectric crystal, causing acoustic vibrations. The time delay and voltage output relationships in the loop associated with the diffracted beam cause oscillation and control the frequency of such oscillations. The oscillations can be amplitude and frequency modulated by variation of appropriate circuit parameters.

Abstract: A breech mechanism embodies a multi-lug sliding breech block having a pluity of pairs of lugs. At the instant before firing, the bearing surfaces of at least one pair of lugs are spaced a predetermined distance apart from the bearing surfaces of the respective threads, or lugs, of the breech ring. When the cannon is fired, a reactive force acting on the breech block elastically deforms the material of the ring and block, forcing all the bearing surfaces into an abutting contact relationship whereby the stresses produced within the material of the mechanism are more uniformly distributed throughout the breech ring and the breech block thereby increasing the service life of the mechanism.

Abstract: A protective mask is provided, which contains the eyes, nose and mouth, crising a protruding lens so as to provide increased peripheral vision and preferably a nose cup which is shaped to provide a channel for passing defogging air to the lens, and peripheral areas of the mask which fold inward to form the seal.

Abstract: Explosive devices for foxhole manufacture, demolition and urban warfare. devices comprise a hollow metal cylinder; a cap at the top end closing said metal liner, said cap having a waveshaper on the interior thereof, and said cap having a hole therethrough for insertion of an ignition charge; a closure at the bottom end of said liner, said closure having the form of a liner, depressed inwardly; and an explosive composition disposed within the metal liner between the waveshaper of said cap and the depressed cone of said closure. An alternative explosive device is disclosed wherein the closure at one end of the metal cylinder is spaced apart and inwardly from the open end of said line to form a standoff space. A further explosive device is disclosed wherein additional explosive is disposed within the standoff space but leaving spaces for jet formation.

Abstract: A printed circuit board having a plurality of traces and pads printed then. Slots or openings of various geometric shapes are formed in the board to provide flexible mounting members. The pads are mounted on the mounting members. Surface-mounted electrical components have their terminals soldered to the pads. The flexibility of the mounting members permits small movements of the soldered joints in response to thermal expansions, vibrations, etc. to control potentionally damaging stresses.

Abstract: An apparatus and method for accelerated drying and decontamination of wet fabric and material. A pair of metal electrodes electrically isolated from each other by a "U" shaped insulating frame is used to hold the wetted fabric in an electric field of between 10.sup.3 and 10.sup.4 volts per centimeter.

Abstract: A projecetile for firing in a gun barrel has a jacket and a load. A bearing leeve is mounted in the jacket and the jacket is of a different material than the bearing sleeve. A journal sleeve is mounted in the bearing sleeve to axially rotate therein. The load is mounted in the journal sleeve to rotate therewith. Thus angular rotation of the load with respect to the gun barrel is reduced.

Abstract: Current state of the art air core homopolar generators employ large time ying magnetic fields (4 Tesla Range). These high fields are required for proper voltage, but also induce significant eddy currents. Use of novel transposed rotor conductors and a novel transposed coil winding reduces these currents to acceptable levels. Furthermore use of a segmented stator current collection system further reduces the flow of eddy currents.

Abstract: A smoke grenade system for use on an armored vehicle. This system includes vehicle having a body and a turret, launching tubes mounted on the two sides of the turret, a first switch for expelling a first salvo of smoke grenades and a second switch for expelling a second salvo of smoke grenades. Each switch actuates one-half of the launching tubes on one side of the vehicle plus one-half of the launching tubes on the other side of the vehicle.