Abstract: Current conducting connector for the electric connection of a gas bag collision protection device located in the bowl of a steering wheel of an automotive vehicle. A current conductor having a conducting strip, arranged in several concentric windings in a fixedly mounted housing surrounding a steering shaft or steering wheel hub. The ends of the conductor are connected by an inner and an outer connecting element. The inner connecting element is arranged on a core surrounding the steering shaft or the steering wheel hub and rotates with the steering wheel. The outer connecting element has a pivoting nipple held in a pivot bearing formed in the housing and surrounding an opening in the wall of the housing. The current conductor is introduced outside the housing axially into the pivoting nipple and lead out inside the housing radially from the pivoting nipple.

Abstract: A barrier system for a high temperature reactor. The reactor utilizes spherical fuel elements consisting of coated particles of a fissionable material embedded in a graphite matrix, the coating forming a first safety barrier against the release of fissionable material, and the graphite matrix a second such safety barrier. The reactor is surrounded by a prestressed concrete pressure vessel clad on the inside with a metal liner. The metal liner acts as a third safety barrier, while the concrete body of the prestressed concrete pressure vessel forms the fourth, and outermost safety barrier. A plurality of passages are located in the pressure vessel which are closed off by closure means. The closure means provide sealment between the third and fourth barriers in the area of the passages. By utilizing the concrete pressure vessel as a safety barrier in this manner, the need for a separate protective reactor housing is eliminated.

Abstract: Deflector hood for chimneys, in particular for the air exhaust lines of industrial exhaust installations such as digestors or the like, made up of an outer jacket expanding from two opposing openings to a center plane located between the openings. The hood acts as a cap on the air exhaust line. An inner body is held within the outer jacket and expands continuously from the base surface toward the outlet opening. The internal space is open toward the outlet opening and is connected with the environment by a channel leading through the wall of the outer jacket. The inner body has a configuration corresponding to that of the outer jacket, expanding from the inlet opening to a center plane and subsequently narrowing to the outlet opening, such that the annular space enclosed between the outer jacket and the inner body has a cross-sectional area continuously increasing from the inlet cross-section to the outlet cross-section.

Abstract: A medium power, high temperature pebble bed nuclear reactor, which includes a means for introduction and withdrawal of operating elements. The installation is provided in such a way that it can be more economically built and operated. The installation includes several input stations above a prestressed concrete pressure vessel, and charging hatch blocks positioned on top of the prestressed concrete pressure vessel. The blocks include selectors through which the pebble-shaped operating elements, after traversing helical and meandering charging conduits, reach into the reactor core. The selectors and charging conduits are installed within armored ducts which penetrate the prestressed concrete pressure vessel. Similar armored ducts are provided for exit ducts for withdrawal of pebbles from the core, and a first common exit hatch block is connected to the exit ducts. The block is arranged within foundation walls which support the prestressed concrete pressure vessel.

Abstract: A novel freely grasped hand-sail is described, which consists essentially of two profiled airfoil surfaces inclined towards each other at an angle between about 180.degree. and 120.degree., the leading edges of this hand-sail also forming an angle between about 180.degree. and 120.degree.. In one embodiment, the airfoil consists of sails kept rigid by aerodynamically preformed battens, which sails are stretched symmetrically between two masts and a middle boom. The freely grasped sail turns around its horizontal axis when set against the wind, and stabilizes itself at a certain turn, whereby the section that is more vertically directed yields forward thrust forces, to propel, for example, a sailboard, and the section that is more horizontal in this position mainly yields upward thrust forces to compensate the weight of the hand-sail and the rolling moment exerted on the sail. Wave-jumping while wind-surfing, in particular, can be made easier with the help of this hand-sail.

Abstract: A process for the simulation of weapons fire for gunner training, particularly for the gunners of armored vehicles. The process allows the exact evaluation of every shot, including its prehistory, permits the accurate determination of the location of a hit and allows a simple evaluation of the shot--even under field maneuver conditions. The process provides that every target emitting a characteristic radiation which is received by a television camera together with the image of the target and transmitted to a control center. The signal received further contain coded characteristics for the identification of the vehicles providing the target image, so that if the reticule is located on the target at the instant of firing, a score is detected and a smoke charge may be optionally ignited on the target by a coded radio command.

Abstract: An apparatus for the prevention of the unintentional exposure of photo material includes an electromagnetically locking flap on an apparatus designed as a storage chest for photo material. The flap as a cover for said chest and a photocell or the like respond to the luminosity of the environment. In the case of the prevalence of an adequate darkness a solenoid affects the magnet so as to unlock the cover.

Abstract: A process and an installation for the securing against excessive pressure in a prestressed concrete pressure vessel of a gas cooled high temperature reactor and for the prevention of activity release into the environment. The process comprises three steps and in each step pressure reducing installations become effective upon the rise of pressure in the prestressed concrete pressure vessel over a predetermined value. In the first step the pressure vessel is relieved by means of the operational gas purification apparatus and a conveying blower into the storage vessels for the cooling gas. In case of a further rise in pressure, in a second step a discharge path equipped with a safety valve and a check valve is opened, which also relieves into the storage vessels while by-passing the gas purification installation.

Abstract: A gas-fired heating boiler without a blower, with partial load controls, comprises a combustion chamber with heat exchanger elements located above the combustion chamber, a Venturi tube with a nozzle and an air damper arranged in the wall of the combustion chamber. Partial amounts of the air required for combustion are suctioned into the combustion chamber through the Venturi tube and air damper, respectively. The combustion chamber is open toward the heat exchanger elements at its further walls. The air damper is sealed tightly at its edges against the undesirable entry of air into the combustion chamber. The Venturi tube has a cross section which limit the flow of combustion air to a constant partial amount of the air required for full load operation. An opening is provided in the air damper, calibrated for the flow of the difference air volume required in addition to the air flowing through the Venturi tube for the optimum efficiency of the burner in the partial load operation desired.

Abstract: A piston metering apparatus for the metering of the components of a reaction injection molding machine comprising a metering cylinder (2) the cylinder space of which is surrounded by a cylinder wall, a metering piston (10) sealed in relation to the cylinder wall by means of a sealing unit, a cylinder base (3), component inlet (4) and component outlet lines (5) connected with the metering cylinder (2), and a metering piston (10) coupled with the hydraulic piston rod of a hydraulic drive unit (12). In order to simplify the inspection and maintenance of such a piston metering apparatus, the metering piston (10) is in the form of a plunger piston and the sealing unit is contained in a sealing cartridge (9) releasably fastened to the upper edge of the metering cylinder (2).

Abstract: Process for the construction of a nuclear reactor having a reinforced concrete pressure vessel, comprising utilization of a corset frame to support the cavity liner, closing off the reactor cavity and installing the reactor components under "clean conditions", simultaneous to the layer-by-layer pouring of the walls and top of the reinforced concrete pressure vessel. The erection of the supporting corset substantially reduces the overall assembly time of the nuclear power station without involving additional expense.

Abstract: A device for boring tunnels to accommodate electrical cables or conduits in the thickness of an insulative material of a composite wall panel exhibiting a layer of this material covered on one or both sides with a rigid facing sheet made up of a mobile system and a positioning and guiding device for the mobile system. The mobile system incorporates a boring member mounted at the end of a flexible member, and the positioning and guiding device incorporates a removable support featuring means for attaching it to the or one facing sheet, in line with an opening formed in the latter, and a bent guide conduit adapted to be inserted into this opening. This conduit enables the boring and flexible members to penetrate into the insulative material parallel to the facing sheet, in the required direction and to the required distance.

Abstract: The integrated circuit embedded in a data carrier and the contact surfaces connected with this circuit are to be protected against bending of the data carrier. For this purpose, the data carrier is divided into two areas, the first one, which bears the circuit and is generally small compared to the second area, being connected to the second area via a predetermined breaking point. Stress which occurs when the data carrier is bent is kept away from the circuit, or transmitted only weakly to it, by the predetermined breaking point.

Abstract: The invention relates to a measurement coupling for fluid systems, for taking working pressures or temperatures of the fluid media, consisting of a coupling bushing which is under duct pressure in the built-in state, and in the bore of which is arranged a spring-loaded and mechanically actuatable check valve, the check valve being constructed as a valve body provided with a cylindrical bore and a closed bottom face, the end of the coupling bushing facing the fluid system being prolonged beyond the valve body. A radial transverse bore or a radial slot is located in the wall of the valve body. In a further embodiment of the invention, the radial transverse bore or the transverse slot is formed in the wall of the guide part of the valve body and a flow slot channel is formed between the valve body and the coupling bushing as far as the radial transverse bore or transverse slot.

Abstract: An arrangment for mounting pipes and the like to a concrete wall or slab comprises a fastening device constructed in the manner of building blocks and consisting of prefabricated parts. A specially designed concrete anchor is inserted prior to pouring the concrete in a reinforcing matrix of a concrete slab or wall. It is possible thereby to keep the distance tolerances between the concrete anchors very small and to standardize all of the parts of the fastening construction, which particularly includes supporting rods, beams and diagonal rods.

Abstract: An apparatus for the automatic microfilming of documents of different formats and the development of exposed microfilms in a continuous process. The apparatus includes a computer controlled combination of (a) an installation for the automatic insertion of documents and their transport through an exposure device from a stack of documents of a certain format, with means to adjust to a given format; (b) an interchangeable lens camera with an illumination and mirror system for the simultaneous imaging of the front and reverse side of the document and with an automatic film transport device; (c) a camera with an exposure system for the filming of titles and continuous identifications; (d) an automatic film development installation; and (e) a central guide and control system with an input keyboard, a monitor and a processor.

Abstract: Control regulation and shutdown of gas-cooled, high-temperature nuclear reactors require precise adjustment of core reactivity through the use of absorber rods. Fine adjustment without permanent damage to the reactor core having a bed of spherical fuel elements is accomplished by a process and arrangement of the reactor such that two groups of absorber rods are independently controlled for insertion into the reactor cavity between the roof reflector and the bed of spherical fuel elements and into the fuel element bed itself. Adjustments can be made for rapid shutdown and/or complete shutdown as well as rapid shutdown required due to water or oil penetration into the reactor core.

Abstract: The disclosure concerns an identification card containing information such as name, account number, photo of the card owner, etc. The card is protected by a superjacent printed security pattern, such as a guilloche, or other pattern which is difficult to imitate, or a homogeneous printed surface. The information is inscribed into the identification card material through the printed security pattern by a laser beam recorder. The energy of the laser and the colors of the printed security pattern are coordinated with each other in such a way that the laser light is not absorbed by the printed security pattern and the latter is not destroyed by the laser light.

Abstract: A check paper is being described which is protected against falsifications and forgeries. Crushable micro capsules are being embedded in check paper which contain on one hand a leuco ink and on the other hand a color acceptor. The color acceptor can also be stored in the body of the paper without the use of micro capsules. The leuco ink and the color acceptor react together under color development or color changes if the micro capsules burst through imprinting or other local pressure application to the paper surface. Thus, a character written on the paper surface becomes visible within the body of the paper and cannot be forged anymore.

Abstract: The optical instrument, in particular binoculars, is characterized by exhibiting an integral stable inner housing including the eyepiece tube, the objective tube, the prism seat and possibly the hinge mechanism. The inner housing is encased in plastic foam which determines the outer contour of the instrument.