Abstract: The invention provides an electrical igniter for an adaptive cartridge of a subcaliber barrel system by which the firing pin extension (12) is arranged axially movable by means of a guide (13) made of an electrically non-conductive material. A slide valve (22) grips a safety rod (17) in the guide (13). The safety rod (17) is situated adjacent the breech mechanism (6) only such that the firing pin (12) borders on the percussion cap (29) of the cartridge (11). By an open breech mechanism (6) the safety rod (17), under spring tension, is moved in the direction of the cartridge (11) together with the firing pin (12).

Abstract: An ejectable or launchable member which possesses a storage space for a parachute. An ejectable member of the type which is under consideration herein has the dimensions of the constructional elements reduced in the periphery of a parachute cassette, so as to resultingly provide for savings in deployment weight, and at a given caliber, to be able to increase the amount of storage space which is available for the parachute.

Abstract: A shotgun choke wrench and case for installing, storing and removing shotgun chokes. The shotgun choke wrench and case comprises: an outer tube that acts as a wrench handle and a container, and an inner element that is a wrench and is also capable of holding a choke. The shotgun choke wrench and case also comprises a detent ball or a push button and spring as a retaining mechanism and a pair of ball bearings for ease of movement and guidance when the inner part extends out of the outer tube. The shotgun choke wrench and case has two positions, the case position and the wrench position. In the case position, the outer tube serves as a container while the inner part which holds onto a choke fits completely inside the outer tube to form the base of the container. In the wrench position, the inner part extends from the outer tube, holds the choke and acts as a wrench to install or remove the choke from the barrel of the shotgun.

Abstract: An apparatus for supplying belt-linked ammunition to a gun. Belt-linked ammunition is supplied to a gun by an apparatus comprising a plurality of standard rectilinear ammunition boxes in which the ammunition belts are arranged so that both of their ends are accessible. The boxes are secured beneath an arcuate supporting guide which traverses with the gun and which has openings through which both ends of each belt can pass, for leading in respective directions towards an adjacent box or towards the gun. The boxes are arranged to extend tangentially of the guide so that the axes of rounds of ammunition within the guide are directed radially of the axis of curvature thereof.

Abstract: A spin-stabilized projectile the trajectory of which can be improved to increase accuracy with the projectile being controlled by a source of electromagnetic radiation providing pulses carrying encoded information. The projectile includes a nose end and a midportion having a periphery disposed about which are a plurality of spaced masses with a high explosive charge associated with each mass for high explosive detonation acceleration of its corresponding mass to provide an impulse to the projectile. A projectile has a boattail defining a cavity opened at the rear end of the boattail. Received in the cavity is a pulsed electromagnetic radiation receiver and processor.

Abstract: A warhead for enclosing an explosive charge includes a casing for surrounding the charge. The casing has an end presenting a frontal face. A liner having a circumferential area for attachment to the end of the casing and a coefficient of thermal expansion .alpha..sub.R is fastened to the casing by way of an intermediate ring connected to the circumferential area of the liner. The intermediate ring has a portion which is brought around the frontal face of the casing and which has a pressure face which presses against the exterior of the casing. The liner has a coefficient of thermal expansion .alpha..sub.E which is at least as great as the coefficient of thermal expansion .alpha..sub.R of the intermediate ring.

Abstract: An educational kit for the classroom study of plants including a compact plant growth environment and a seed of fast-cycling Brassica plants. The fast-cycling plants grow in compact areas and have generation cycle times of sixty days or less making them convenient for classroom study. Various experiments on plant growth, physiology and genetics can be performed with the kits.

Abstract: Deposition of radioactive cobalt on the interior surfaces of a water-cooled nuclear reactor and intergranular stress corrosion cracking are inhibited or substantially prevented by the continuous injection of zinc oxide to the reactor water. The zinc oxide may be prepared in the form of a paste, a slurry, or a preformed aqueous solution.

Abstract: A radome type nose cone shell subjected to aerodynamic heating during protile travel, is ablatively cooled by evaporation of metal coolant from a solidified coating thereof adhering to the external surface of a porous section of the cone shell through which the coolant seeps from internal storage at a rate regulated by formation of the solidified coating. The evaporating coolant from the coating mixes with the air in the flow stream to form a protective a boundary layer extending downstream from the porous section of the nose cone shell. The coolant is melted by said aerodynamic heating during internal storage within the nose cone shell for seepage outflow from the porous section and has the requisite heats of vaporation and fusion to effect alternate freezing and thawing thereof in response to withdrawal of heat by the cooling process for establishment and maintenance of the flow regulating coating.

Abstract: An opto-electronic, interference protected missile tracking system operates according to the multiple shutter shifting method, thereby employing a matrix which may have a plurality of liquid crystal cells or deformable mirror devices. These cells or devices are arranged in a rectangular coordinate system and thus have an inherent location determination so that the need for a mechanically movable reticle is obviated. The individual image points in the matrix are modulated under the control of a location determining central processing unit whereby the individual control covers an "n.times.m" vicinity around the image point or pixel that is illuminated by the useful incoming light.

Abstract: A rocket that includes a center body with a system center of gravity and rocket motor means mounted relative to the center body and reaction surfaces for causing a resultant force from thrust of the rocket motor means to direct the resultant force through the system center of gravity of the center body.

Abstract: A repeating rubber band pistol is shown which includes a frame having a barrel and a handle. A handle recess houses a rotary magazine. A plurality of bands can be stretched between a barrel notch and engagement points on the rotary magazine. A trigger element is mounted within the frame recess and allows controlled movement of the rotary magazine to selectively release rubber bands in single fire fashion with successive trigger pulls.

Abstract: In a sonar used to determine the characteristics of the underwater mines, the emission diagram in the vertical plane is modified to obtain two main lobes separated by a central zero value. At reception, the bearing/frequency display system shows a dark strip separated by two luminous strips. When the echo from a mine persists, in going through the dark zone, it is recognized that it pertains to a moored mine floating in the water, thus enabling moored mines to be identified and their submersion depth measured.

Abstract: An underwater location beacon emits a continuous wave signal which is phase-shift modulated by a pseudo-noise, spread spectrum code. This signal is detected with an exact replica of the transmitted code. To an unauthorized observer without the replica, the transponder's signal is indistinguishable from background ocean noise. The spread spectrum code allows extraction of the signal from high levels of ocean noise, providing an increased detection range, jamming resistance, covertness, and unique signals for each pinger. The outputs of the surface spread spectrum receiver are used with automated location algorithms. Several receivers at different surface positions provide the underwater coordinates of the pinger's location.

Abstract: An automatic device with interchangeable interface for the introduction of cartridges in the bifilar or monofilar magazines of automatic and semi-automatic arms, comprising a plate (1) with a cartridge-guide ledge (2), placed above a vertical track (3) for transferring said cartridges into a suitable seat (18) from which a piston (13) introduces the same, one by one, into an arm magazine by means for a movable pin (10) provided in such a way that it may bend at right angle.

Abstract: Transducer apparatus includes a two-part housing having a rear boss for securing the transducer to a wall. Within the housing are two magnetic elements for providing an output in response to electrical input signals, and the output is transmitted to the wall through the housing and rear boss. The magnetic elements are secured within the housing by the internal configuration of the housing.

Abstract: A recoil diffuser (10) includes a plurality of weight elements (20, 22) and a plurality of plastic spring elements (30, 32, 40) fitted within a tube (12) to operate differentially upon being subjected to the forces of recoil as in a shotgun or the like. The end surfaces of the weight elements and of the plastic spring elements (see 24, 28) are shaped to optimize spring forces relative to displacement relative to overall size of the unit and mass of the weights.

Abstract: High density materials, e.g. for fishing weights or pellets or shot as ammunition, are composed of a material comprising high-density metal particles in particular tungsten-containing particles, in a settable or hardenable polymeric matrix providing a composite material of stable configuration. Fishing weights may be produced in known forms, or as flexible tubing to be cut to size by the user, or as a hinged pair of body parts which can be closed together to grip a line between them and to be reopened. For pellets or shot similar materials comprising a polymeric matrix can be provided, or such products can be pressed directly from a tungsten alloy. These products all offer particular advantages of non-toxicity, and the fishing weights can be given the ability to be re-used many times.

Abstract: The invention relates to a self-loading pistol with a magazine and a device for feeding cartridges of the magazine to a cartridge chamber connected ahead of barrel (1). In this case, barrel (1) is placed in pistol frame (2, 3, 4) so that there is a space (6) under it for magazine receiving, from which a magazine (30) can be lifted by a magazine conveyor device (7) into the area of the cartridge chamber. Several magazines (30) can be fastened to one another and successively brought by magazine conveyor device (7) in the area of the cartridge chamber. Emptied magazines (30) are removed from pistol frame (2, 3, 4) by a magazine drop-out shaft (13).

Abstract: A combined cooker/smoker unit includes a partition dividing an open-topped container into a smoker compartment and a fuel compartment so that food can be smoked and cooked in the same unit without exposing that food directly to an open flame. The unit includes heat and mass transfer controls and an overall control for controlling the amount of heat and smoke to which the food is exposed and for automatically monitoring the conditions in the unit so that food can be repeatably and reliably cooked and smoked in an unattended manner. Alarms can also by included.