Abstract: A method for galvanic deposition of nickel from an electrolyte containing nickel sulfamate and nickel chloride is disclosed wherein the formation of intermediate products resulting from the oxidation of nickel sulfamate and the escape of anode sludge into the electrolyte are controlled to such an extent so as to reduce the amount of sulfur incorporated in the deposition to less than about 15 ppm.This results in avoidance of brittleness in the nickel deposition at high temperatures and allows the coated article to be welded. These properties were difficult or impossible to obtain in the prior art processes.

Abstract: The present electrical melting fuse is current flow direction responsive. For this purpose the melting conductor is in heat exchange contact with a surface of a Peltier element which surface changes its temperature in response to a change in the flow direction of an electrical current through the Peltier element.

Abstract: An apparatus for treating hydrocephaly has one housing which contains subcutaneously immplantable components for the measuring and controlling of fluid pressure. A second housing adapted to cooperate with the components in the first mentioned housing, contains the measuring and control components which remain outside a patient's skin. The components in both housings and the housings themselves are arranged for cooperation with each other, whereby an intracerebral space may be automatically drained in response to a predetermined, adjustable pressure.

Abstract: A method of manufacturing a regeneratively cooled rocket combustion chamber which includes a thrust nozzle portion connected to a combustion chamber portion and which is constructed with cooling channels which extend in the longitudinal direction between an inner shell or wall having a smooth interior surface and an outer shell or wall and which are laterally bounded by radially extending webs, comprises forming the inner shell along with the cooling channel webs by electrodepositing metal on an electroplating core which is made up of chemically dissolvable material and has its outside contour conformable to the inside contour of the inner wall of the combustion chamber which is provided with radially extending projections forming mold blades for the webs defining the lateral boundaries of the cooling channels. Thereafter, the cooling channels are filled with a multiple electrically well-conducting filling material up to the level of the outer ends of the webs after these outer ends have been finish turned.

Abstract: Isotopes are separated from a gas mixture by accelerating the gas mixture containing the isotopes to ultrasonic speeds sufficient to bring the gas temperature to 150.degree. K or less. Simultaneously, the gas is subject to a pressure well above the vapor pressure of the gas at said temperature. Under these conditions the gas is subjected to a laser radiation having a wave length corresponding to the absorption line or band of the molecules containing the isotopes to be separated, whereby the molecules are excited so that they may be separated by conventional devices. The present apparatus has a high pressure reservoir supplying the gas mixture through a device for producing said ultrasonic speeds into an expansion chamber. As the gas flowing at said speeds is irradiated by the laser beam, it expands into a low pressure reservoir. The laser is arranged so that the laser beam extends across the expanding gas flow at a point where the expanding gas does not yet start to condense.

Abstract: A non-spinning glide projectile, comprises a body which includes a forward portion having one or more lift-producing devices or outwardly projecting air foil-like surfaces. A keel fin is detachably secured to the body intermediate its length, and means, such as a time fuse device, carried on the body, is employed for detaching the fin and jettisoning it after a predetermined flight path has been completed.

Abstract: The spread bombing is effected by a plurality of guided bombs transported by a carrier aircraft near to a target area. The guided bombs are provided with respective programmable storage devices and a freely selectable target coverage pattern is provided by supplying the storage devices with selected different respective guide programs which can be adjusted, both on the ground, prior to an attack on a target area, and in the carrier aircraft, during the attack, as a function of the locating of the target and the preselected target coverage pattern. The different guide programs are transformed into respective different guide commands which are stored in the respective storage devices of the individually guided bombs. The bombs are simultaneously released from the carrier aircraft and the stored guide commands guide the respective bombs into different respective trajectories so that the bombs strike the target area in a predetermined coverage density corresponding to the selected target coverage pattern.

Abstract: A reaction mass for a launching tube having a centrally positioned propellant charge for propelling a missile at its forward end and a reaction mass located rearwardly of the propellant charge which is propelled at the rear end, comprises an inert, readily fragmentizing, expellable reaction mass comprising a glass material which is internally prestressed and which disintegrates at the launch. The reaction mass is advantageously in the form of a glass cylinder which is either connected to a metallic pusher member arranged rearwardly of the propellant charge which is pushed by the ignition of the charge in a rearward direction, or it may comprise a glass cylinder which includes its own pusher head formation. The pusher itself is arrested by a brake positioned at the rear exit. In addition, the rear exit is closed by a diaphragm which may shatter after ignition of the propellant charge.

Abstract: A composite structural member is constructed to take up dynamic loads. A force transmitting element is glued to a force applying element and to a force take-up element to form the composite member. The force transmitting element is a molded blank of cellular polyurethane having an open cell structure throughout. The open cells also extend along the surfaces glued to the force applying element and to the force take-up element. The glue or adhesive used is a moisture curing polyurethane prepolymer capable of penetrating into said open cell structure, thereby greatly increasing the adhesive bond.

Abstract: A control valve for a pulsating rocket engine comprises a valve seat and a movable valve part, one of which has a facing surface, of a non-deformable material, having a plurality of concentrically arranged saw-tooth shaped sealing ridges with flat sealing faces at their apices which extend perpendicular to the movement direction or force application direction. The other valve part has a facing surface of polytetrafluorethylene or polyamide which is initially smooth and plain but which, upon the first closing operation of the valve, responsive to a pressure load thereon exceeding a predetermined pressure load, is irreversibly deformed by the saw-tooth shaped sealing ridges, with flat sealing faces, of the other valve part to form therein grooves complementary to the sealing ridges.

Abstract: A mine to be laid on the ocean floor consists of two separate containers joined together into a unit. One container holds a firing system and the other an explosive. The explosive is salt water resistant and of a plastic consistency. The container for the explosive is destructible so that it can be removed from about the explosive either during or after placement on the ocean floor. A flexible reinforcement member encloses the explosive so that, after the container is removed and the explosive can flow on the ocean floor, the reinforcement member holds the explosive together.

Abstract: A housing for an arrangement of mechanical gears which includes pairs of meshing gears for transmitting driving force between a drive shaft and a driven shaft. The housing comprises a high strength supporting structure carrying bearings for journaling the respective shafts for each of the gears. The supporting structure includes a plurality of individual bending resistant girder members extending between the bearings journaling the shafts for the gears of each pair of meshing gears. The girders which extend between the bearings correspond to and absorb the reaction forces acting between the bearings. The girders have reinforcing chords made of material which is rigid along the longitudinal direction thereof. A protective skin which is unstressed by the reaction forces encloses the entire arrangement of gears and the supporting structure.

Abstract: The land mine, comprises a flat mine housing having top and bottom flat broad surfaces and a side edge which is at least partly cylindrical. A tubular bushing extends in the housing between the top and bottom and it is closed on one of the surfaces by a cover. A firing system is located in the bushing for igniting an explosive charge which is contained in the remaining portion of the housing. Either or both of the top and bottom surfaces contain one or more projectile-forming hollow charge covers which engage directly over the explosive charge located within the housing. The mine may be formed with a half-cylindrical surface and a flat edge having a notch for engagement over a central mounting rod, or the mine may be made as a complete cylinder or disc. The hollow-charge liners are advantageously made circular and are arranged at one or more equally spaced locations around the surface of the top and bottom of the mine housing.

Abstract: A liquid fuel rocket engine comprises a housing having an outer annular wall and an inner annular wall which define therebetween a combustion chamber of substantially uniform cross section and leading to a converging wall section and a nozzle throat of narrow dimension. Means are provided to vary the nozzle throat section during operation of the engine in order to obtain better performance operation of the engine. The means for varying the dimension comprises a thermal arrangement whereby the cooling of the housing walls are divided up into sectors through which a propellant component is circulated. The temperature of the circulated component and the quantity of component which is circulated are advantageously controlled in order to vary the thermal expansion of the various sector portions and thereby change the axial and radial position of the walls defining the nozzle throat section.

Abstract: A pressure gas reservoir for supplying pressure gas to control mechanisms of a projectile which is to be discharged from a gun tube by means of a propellant charge comprises a projectile body which has a reservoir therein with a wall portion which is adapted to be exposed to the pressure gases of the propellant charge and includes check valve means in the wall portion permitting the inflow of the pressure gases into the reservoir during firing for the storage therein, and for the subsequent use in operating the control mechanism.

Abstract: The present method relates to exciting a gas dynamic CO.sub.2 laser, especially at high stagnation temperatures above 2500.degree. K and at a combustion chamber pressure above 50 bar. A liquid fuel and a liquid oxidizer are injected into the combustion chamber at these operating parameters and the produced laser gas is caused to flow through a Laval nozzle into a resonator. The flow cross sectional area of the Laval nozzle adjacent to the resonator is at least 100 times larger than the flow cross sectional area adjacent to the nozzle neck facing the combustion chamber. The flow of the laser gas through this nozzle cools the gas to about 300.degree. K, whereby an inversion state is produced. The laser for performing this type of operation has a combustion chamber connected through the above mentioned nozzle to a resonator which in turn is connected to a diffuser.

Abstract: A propelling or driving force generating system for propelling a device such as projectile in a fire arm comprises a combustion chamber cylinder formed at the end of a barrel containing a bore for the passage of a projectile and in which is movable in pressure differential piston. The piston includes an annular ring portion having surfaces on respectively axially opposite ends which are exposed to pressure forces existing in intermediate chambers defined between these surfaces and end walls of the surrounding cylinder in widened annular portions of the cylinder. The cylinder and piston are provided with one or more passages for the passage of a propellant component into the combustion chamber. The various propellant components which are preferably of a nature such that they will react hypergolically, are connected through valve means in these passages and by a central plunger element of said valve means into the combustion chamber.

Abstract: A housing of a pump for an artificial heart comprises central, polar regions of rigid material where a rotatable connector for control and/or power supply conduits is located. An equatorial, peripheral region is made of flexible material. Connectors for inlet and outlet conduits are tangentially mounted to the equatorial region. A flat, torus shaped bellows of elastic material is positioned between two oppositely driven, spring loaded pressure plates and encloses the pump volume. An electromechanical displacement transducer provides signals proportional to the stroke of the pump. The pump may be operated by a liquid or gaseous pressure medium and its shape and structure are well adapted for implantation into a living organism, especially the human body.

Abstract: A lightweight structural part is formed of band-shaped fiber strands woven into a lattice-type structure. Each fiber strand is made up of a number of carbon fiber rovings impregnated with a synthetic resin. The rovings in each strand are arranged in at least two layers with a plurality of rovings in each layer. The fiber strands are disposed in spaced relation in the lattice-type structure and are woven in a repetitive pattern. In forming a structural part or a support, the lattice-type structure can be cut into sectors or other shapes with the shapes being joined together, if necessary, to provide the desired finished configuration.SUMMARY OF THE INVENTIONThe present invention is directed to a lightweight structural part formed of carbon fiber-reinforced plastic which is constructed from carbon fiber rovings wound on a mandrel and subsequently processed by pressing.Carbon-fiber-reinforced plastics are used for structural parts which must have a high rigidity and a very low specific weight.

Abstract: A system for the transformation of steering control signals from a plane cartesian coordinate system to a polar coordinate system is disclosed. The system is designed to be self-contained on board a missile. The system is synchronized with roll position, by virtue of a start pulse and generates pulse increments corresponding to increments of roll angle change. A digital counter counts pulses which are referenced to the missile. The counted pulses are supplied to read-only memories which are pre-programmed with sine and cosine information. A pair of digital-to-analog converters respond to the outputs of the memories. An appropriate Y or Z steering signal is supplied to the converters for multiplication. The outputs of the converters are summed and then supplied to the missile steering device. Means for taking into account the launch of a missile from a mobile launch site is disclosed.