Abstract: The detonating valve for releasing openings of air bag landing systems for aircraft and spacecraft has a wedge type charge and a cover closing the opening, which cover is shorn off during the ignition of the wedge type charge. The cover is a thin-walled disk or a membrane, which is integrated either within the aircraft and spacecraft or within the air bag landing system.

Abstract: A sleeve-type rubber shock absorber with hydraulic damping for mounts in motor vehicles includes an inner mounting sleeve (1), an outer mounting sleeve (2) surrounding same at a radially spaced location, at least one elastomer body (3), which is adheringly arranged between the two mounting sleeves and forms at least one chamber (4) filled with hydraulic damping agent. A cap (5) sealingly closes the sleeve-type rubber shock absorber, forming a second chamber (6). A channel plate (7) is provided which contains a throttle channel (7.1) connecting the chambers (4 and 6), wherein the outer bearing sleeve (2) has at least two different external diameters, of which the mainly radially loaded area of the smaller diameter is inserted into the motor vehicle component (8). At least two stop buffers (9) are arranged distributed over the circumference and are provided on the corresponding area of the inner mounting sleeve (1).

Abstract: A multiport or multiported memory device is provided. A first user and at least a second user are provided. A multilevel memory arbitration system is implemented which establishes arbitration cycles wherein the high priority user is granted priority as to access either during each arbitration cycle or during a greater number of arbitration cycles. A source burst limiter is provided associated with the high priority user. The source burst limiter monitors access of the high priority user to the multiport memory and limits such access based on a comparison of access attributes to some access attribute threshold.

Abstract: Antistatic agents, adhesives and coatings with high antistatic properties under low humidity and temperature, which contain a quaternary ammonium salt of formula I: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 is an alkyl radical having 1-5 carbon atoms, and R.sub.4 is an alkyl radical having 1-3 carbon atoms.

Abstract: In an evaporation burner with a combustion chamber (1) for a heater or the like with a peripheral boundary wall (29), a front boundary wall (6) and an air-supply nozzle (8) projecting coaxially into the combustion chamber (1) with radial air outlets (9) through the nozzle wall, a guiding device (32) for a whirling air supply is fitted at or upstream of the air supply nozzle (8) of the combustion chamber (1), in which said air supply nozzle has a diaphragm (10) for axial back-flow (R) of the exhaust gas or the air at the center of turbulence of the whirling air supply (L). In an axial extension of the combustion chamber may be fitted a coaxial flame pipe (20), which together with the peripheral boundary wall (2), may constitute a one-piece (deep-drawn) sheet-metal component and the rest of the combustion chamber may be a cast component.

Abstract: A gas burner for a heating furnace with at least one burner pipe (1) with flame openings (7). An intake opening (5) is provided in which primary air enters and wherein burnable gas enters through a gas nozzle (4) penetrating into the intake opening (5). The percentage of primary air remains extensively unaffected during changes in the gas pressure occurring as a consequence of a change in the nature of the gas.

Abstract: An electrochemical oxygen sensor with a measuring electrode, an atmospheric oxygen electrode as a reference electrode, and an auxiliary electrode in an electrolyte is improved such that a stable measured signal is obtained even during changes in the position of the measuring cell. To accomplish this, the auxiliary electrode is arranged in the vicinity of the measuring electrode and a protective electrode is provided between the measuring electrode and the auxiliary electrode.

Abstract: The invention relates to a method for synchronizing transmissions at a constant bit rate in ATM networks and circuit arrangements for carrying out the method, in which a time stamp T.sub.S is fed to the ATM cells which have been input on the receiver side, the data is output in a delayed fashion, the actual delay time (T.sub.A -T.sub.S) is compared with a prescribed desired value t.sub.V, and a correcting variable, which adjusts the clock frequency of a time base (14) counter to the error variable, is generated by a controller (13) on the basis of the error variable t.sub.R =t.sub.V -(T.sub.A -T.sub.S).

Abstract: A suspension apparatus with a pair of hydraulic dampers 1 disposed on left and right sides of a vehicle, an upper end side of which is connected to a vehicle body side and a lower end side is connected to an axle side, and a pressure regulating cylinder 2 communicating with piston side oil chambers a of the pair of hydraulic dampers 1. The pressure regulating cylinder 2 has a free piston 26 slidably disposed within a cylinder body 24 and defining a front side chamber h and a back side chamber i within the cylinder body 24. The free piston 26 is slidably encased in a cylinder member and has a partitioning member 27 for defining a closed chamber j and an open chamber k communicating with a front side chamber h on the inner peripheral side of the free piston 26. The partitioning member 27 has a damping valve 4 which communicates between the closed chamber j and the open chamber k, and has a proximal end connected to an extreme end of a rod body 29 elastically supported on the cylinder body 24.

Abstract: A gas filter media with a parallel layer structure, which comprise individual layers of adhesive and adsorbent particles, wherein the thermoplastic adhesive is solvent-free and is preferably based on polypropylene or polyethylene. Using the manufacturing process according to the present invention, it is possible to intentionally prepare gas filter media with adjustable packing density and pressure drop. The gas filter media according to the present invention can be used in respirator filters, room air filters, in ventilation filters for vehicles, or in apparatus filters.

Abstract: An active armor for protection against shaped or hollow charge projectiles (1) is formed by a front and a rear sandwich arrangement (2) and (3). The front sandwich arrangement (2) has a splinter jacket as a front outer layer (5), in order to render the main shaped charge of a twin shaped charge ineffective. The rear sandwich arrangement (3) serves in cooperation with the front sandwich arrangement (2) for rendering single shaped charges ineffective.

Abstract: The machine for surface working of wood workpieces solves the problem of the quality wood workpieces working when passing over the working area of the working head, and when leaving it. The longitudinal central axis of the oblong static rotor, with therein fixed axes inserted and mounted, and front circular plates fixed onto it, is for the .alpha. angle staggered from the perpendicular to the front surface of the guiding plate in a way that the front circular plate is for the .beta. angle staggered from the guiding plate front surface. The .alpha. angle and the .beta. angle are preferentially of the same size, and their size changes inversely proportionally to the size of the outer diameter of the front circular plate, whereby the outer diameter of the rotor preferentially also represents its drive pulley at the same time.

Abstract: A coin selecting apparatus which can change for coin sizes simply. The coin selecting apparatus includes a plate which has a vertical length opening for throwing a coin thereinto, a diameter gage slidably disposed on this plate and having a guide portion to partially seal the length of the opening, and a thickness gage slidably disposed on said plate to partially seal the width of the opening. The coin selecting apparatus has a front part, which is made of a plastic formed product having a rectangular plate form, base part which made of a plastic formed product having an approximately rectangular plate form, a chute cover part made of a plastic formed product having an approximately tail-fin-shaped form and a door part made of a plastic formed product having a slightly small rectangular plate form.

Abstract: The invention relates to a vehicle heater which is independent of the engine, has a burner head (9) and a flame tube (8) and is surrounded by a heat exchanger casing (10) through which a heat transfer medium can flow. The heat exchanger casing has connections (A; B) for inflow and outflow of the heat exchanger medium, and regulating sensors (20; 20'; 22) arranged in the region of the connections are connected to a control device which regulates the operation of the vehicle heater in relation to the heat transfer medium temperature measured. The aim of the invention is also to have the alternative of the heat transfer medium being able to flow through the heat exchanger casing (10) in the opposite direction, the connections (A; B) for the inflow and the outflow of the heat transfer medium subsequently being interchanged, and the regulating values of the existing regulating sensors being adapted.

Abstract: Apparatus for changing bicycle gear ratios comprising pedals (1) to the shaft (3) of which a group of coaxial overdrive gears is fixed, with at least an overdrive gear (20) of larger diameter and at least an overdrive gear (2) of smaller diameter; a plurality of sprockets (4) of different diameter, pack-like disposed close to each other and mounted on the shaft (40) of the rear wheel; a roller chain for the transmission of motion from one of the overdrive gears (2; 20) to one of the sprockets (4); a mechanism for shifting the chain (5) from one to another of said sprockets (4), with a cyclist-operated lever-and-wire driving mechanism; and a mechanism for guiding the deviation of the chain (5) from one to the other of the overdrive gears (2; 20) in cooperation with the mechanism for shifting the chain (5) over the sprockets (4) of the rear wheel. The teeth of each overdrive gear exhibiting, in correspondence of a respective sector (M, N), reduced height and thickness with respect to the other teeth.

Abstract: Process and device for the friction welding of workpieces that consist of different materials or possess different material properties, especially different hardnesses and/or melting points. The workpieces are rotated over a limited angle of rotation of less than 1,080.degree., preferably 290.degree. to 430.degree., relative to one another during the friction process. The angle of rotation is controlled via the friction time and the switching off of the rotating drive. The more resistant workpiece is preferably rotated and is leveled off on its face before the friction welding.

Abstract: Cryogenic valve with at least one pair of sealing elements, preferably one with a seat and a tappet, whose seat surfaces are in sealing contact with one another in the shutoff position. At least one sealing element of the pair is formed of a linearly superelastic shape memory alloy, which is stabilized by plastic cold working in the martensitic textural state, i.e., no longer displays a shape memory effect.

Abstract: The invention relates to an arrangement of at least two contact pairs (1, 2; 3, 4) for compensation of near-end crosstalk, in which one or both contacts (1, 2 or 3, 4) of a contact pair (1, 2; 3, 4) are designed to be angled away once or more than once from a contact region (5), with the result that the contacts (1, 2 and 3, 4) then run parallel once more and the distance between the contacts (1, 3 and 2, 4) of different contact pairs is designed such that crosstalk which is in antiphase with the contact region (5) is produced.