Abstract: The self-locking revolute joint which can be step by step adjustable to an angle by means of pumping movements of an activation lever is particularly suitable for adjustment of seat height or backrest inclination of vehicle seats. It has a mount in which a bearing shaft is journalled. Further, it has a locking disk with notches arranged at equal angular intervals and with a torsion-proof connection with the bearing shaft; further a locking element which is preferably journalled with turning capability at the mount, also having a locking tooth confunctioning with the notches and being elastically prestressed in the engagement direction of this locking tooth and having a total of two control profiles, each one of which has a release profile and an unblocking indentation, the distance between which corresponds to the angular intervals between the notches, and confunctioning with carriers, which can be adjusted by means of the activating lever.

Abstract: A propulsion control system for preventing an undesirable spinning of the vehicle wheels to be controlled, particularly of motor vehicles equipped with a multi-axle drive. The reference speed required for the slip threshold formation is formed from the speed of the uncontrolled driving wheels by an integration with a time constant derived from the longitudinal acceleration of the vehicle, by which a falsification of the reference speed signal is kept within limits in the case of a spinning of the uncontrolled wheels.

Abstract: A propulsion control system for motor vehicles for preventing an undesirable spinning of the driven vehicle wheels when their slip exceeds a certain threshold value, having several slip thresholds that are connected or disconnected by a logic circuit as a function of the vehicle speed, the longitudinal acceleration, the steering angle and control signals of the propulsion control. The logic circuit may also be used for changing the rising and adjusting speeds of the control elements of the propulsion control.

Abstract: A firearm comprises a housing, a barrel extending in a first direction, a chamber structure, a trigger and firing means, wherein the chamber structure is constituted by a chamber member, which is separated from the barrel and is movable in the housing in a second direction, which is transverse to the barrel axis, and an actuating mechanism is provided for reciprocating said chamber member in said second direction between a firing position and a loading position. The actuating mechanism comprises a slider, which is movable in said first direction from an initial position to a stand-by position, said slider is adapted to be releasably locked in either of its said positions and comprises a cam opening, which has a can face that extends over the width that is traversed by the chamber member, and cooperates with an actuating pin, which is coupled to the chamber member for a movement in said second direction and extends in a third direction, which is transverse to said first and second directions.

Abstract: A motor vehicle with an anti-blocking system, with an electronic unit which produces from signals coordinated to the vehicle velocity and the vehicle cross-acceleration an output signal which in case of braking in a four-channel anti-blocking brake system switches the brake regulating method for the rear wheels from "select low" to "select high", which with a three-channel anti-blocking brake system increases the response-slippage value for the regulating commencement of the rear wheel brakes and which with a vehicle equipped with an anti-blocking brake system and an automatically lockable differential, locks this differential. The switching, increase, respectively, locking thereby takes place with a predetermined rise velocity. With a motor vehicle equipped in such a manner, the possible brake path is reduced, especially with differing traction coefficients at the wheels.

Abstract: A steering wheel end shaft part and a gear end shaft part are connected together elastically by means of a mechanism located between the shaft parts, the relative rotation between the shaft parts being converted into a large-stroke pivoting movement of a setting lever which actuates a control valve unit of the power steering system.

Abstract: In a pressure medium adjusting element for actuating a disk clutch; a cylinder is fixedly mounted to a disk carrier and with a shaft segment portion provided with a radial shaft bore for supplying lubricating oil for the clutch; wherein an axial piston operating in the cylinder is connected with a lubricating valve to release a stream of lubricating oil from a large oil retaining baffle chamber, connected with the radial shaft bore, to the disk stack, when the clutch is engaged; and wherein the piston abuts the shaft segment portion and is biased by return springs; and wherein the lubricating valve being structurally disposed in a wall of the baffle and operably connected between the baffle chamber and the clutch chamber containing the disk stack.

Abstract: For adjusting the beginning of the pump delivery in a timing device of an injection pump of an air-compressing internal combustion engine for the drive of a vehicle, the beginning of pump delivery belonging to the load condition is determined and adjusted by means of an electric control unit on the basis of the operating parameters internal combustion engine rotational speed, control rack displacement and crankshaft position signal. For reducing the noise emission of the internal combustion engine, in case of a change from an internal combustion engine load which exists over a predetermined time period, from a lower load range into an upper load range, the beginning of the pump delivery is initially adjusted by the control unit in the direction of retard and subsequently the beginning of the pump delivery coordinated to the changed load condition is caused to follow-up with time delay.

Abstract: An inflatable cushion is provided to be embedded in the upholstery of a motor vehicle seat. The cushion has one inflatable compartment and is typically placed near an exterior edge of a back support or seat cushion. As the inflatable cushion is inflated, the contours of the back support or seat cushion can be changed. The longitudinal interior edge of the cushion has a wave-like configuration which faces toward the central portion of the back support or seat cushion.

Abstract: A pressure oil supply arrangement for a hydraulically actuated timing device cooperating with an injection pump for the control of the injection start in multi-cylinder, air-compressing injection internal combustion engines, with an electromagnetic control unit for the control of the pressure oil inlet or return in a feed line in communication with the timing device; the electromagnetic control unit is thereby controllable by an electronic control apparatus in dependence on operating parameters of the internal combustion engine and the connection to the timing device is adapted to be interrupted by the control unit during each injection operation.

Abstract: An electronically regulated fuel injection system for an internal combustion engine with a switchable safety and emergency driving device has a mechanical coupling which mechanically couples the accelerator pedal to the regulator. This coupling operatively interferes with a mechanical connection between a controller and the final control element that determines the quantity of fuel to be injected, after a fault signal has been outputted by a signal processing unit to a switchover element, which switches over control of the final control element to the simple regulator.

Abstract: A regulating device of a heating system having a divided heat exchanger is provided in which the duration of opening of the throttle valves is determined in dependence of the number of throttle valves simultaneously opened and in accordance with the heat requirement. As a result, temperature fluctuations are avoided when different heat requirements exist.

Abstract: A motor vehicle comprises two driven axles (5, 8), which are interconnected by an interaxle coupling (10) for transmitting a torque only when the halves of the coupling (10) rotate at different speeds and by a speed-changing transmission (9) connected in series with the coupling (10). A brake system (12 to 15) is provided for braking the wheels of both axles (5, 8). In order to ensure that the wheels of the driven rear axle (8) will not block before the wheels of the driven front axle (5), a pressure-setting controller (17) is adapted to control a brake pressure regulator (16) associated with the driven rear axle (8) and is responsive to a reversal of the direction in which torque is transmitted to and from the driven rear axle (8).

Abstract: In a drive system for motor vehicles having two drive axles, one of said driven axles is driven by means comprising a liquid friction coupling. In order to permit the use of a relatively small liquid friction coupling and to permit the interdependence of the speed difference between the coupling halves of the liquid friction coupling and the torque transmission capacity to be modulated within a large range with simple means, one coupling half of the preferably controllable liquid friction coupling is held against rotation, the other coupling half is connected to one torque-transmitting member of a planetary gear train having three torque-transmitting members, another of said three torque-transmitting members is arranged to be driven by the motor, and the third of said torque-transmitting members is connected to the axles to drive the same.

Abstract: A bidirectional three-way star splitter for optical wave guides having coupler connections for the optical wave guides and output and input coupling elements between the individual coupler connections. Three coupling elements are provided and include a plane-parallel glass or synthetic glass element of homogeneous composition. Additionally, each coupling element has a longitudinal inside surface which is constructed as a plane reflector and a longitudinal outside surface which is constructed as an elliptical reflector, the two longitudinal surfaces being joined at both ends by planar coupling surfaces adjoining the respective optical wave guides.

Abstract: A trigger mechanism for automatic hand firearms with a catching lever is disclosed. The catching lever bears at its forward end a catching pawl which comprises a double-arm rocking lever. The forward arm of the lever is supported against the force of a lock spring by a spring-suspended abutment, while an expanding pressure spring is located between the rearward lever arm of the rocking lever and the catching lever. This arrangement achieves a favorable distribution of forces on discharge of the firearm, so that the catching elements can be produced from lightweight materials.

Abstract: A fiber optic sensor for the detection of the position or movement of a component, for example the speed of rotation of a shaft, is described, which is particularly suitable for use in a coarse environment. The optical modulator of the sensor comprises a permanent magnet and a modulator part, the permanent magnet and/or the modulator part being mounted so as to be movable relative to a transmitting and receiving light guide. A change caused by a movement generator, for example the shaft, causes a change in the course of the field lines emanating from the permanent magnet which causes a corresponding movement of the modulator part, whereby a greater or lesser proportion of the light radiated out by the transmitting optical fiber is modulated by the modulator part and is transmitted into the receiving optical fiber. The corresponding modulation of the light according to the intensity, color or polarization is then utilized as a measure of the movement or position of the component, and appropriately analyzed.

Abstract: A clutch operating cylinder for a pressure-medium operated clutch which is arranged in the power train of a vehicle, is operable either by the clutch pedal or via a electronically controlled system, for example an anti-slip regulating system, has a housing divided into two chambers. In these chambers there are, apart from the release piston, two further pistons and a spring having a clutch characteristic, such that the electronic control is never able to clutch further than is specified by the clutch pedal, the clutch pedal bites when it is operated subsequent to electronically controlled engagement, and it is possible to use both the clutch pedal and the electronic control to declutch further when the clutch has only been partially declutched.

Abstract: A coil spring for a motor vehicle wheel suspension system having two spring segments spaced apart in the axial direction along the central spring axis and a reinforced connecting piece extending parallel to the central spring axis for connecting the two spring segments. The two spring segments and the connecting piece form a unitary structure.

Abstract: The invention relates to a throttling-pintle nozzle for fuel injection in an internal-combustion engine, with a nozzle needle which lifts off from its needle seat under the pressure of the injected fuel counter to the direction of flow of the fuel. The throttling pintle of which is located within the spray hole in the closing position of the nozzle needle. To prevent an unduly sharp variation in the injection rate from occurring as a result of coking residues in the spray hole, the pintle is provided with a special flattened portion which is arranged obliquely relative to the center axis of the pintle, so that with an increasing stroke of the needle in the opening direction an increase in the passage cross-section represented by an oblique flattened portion takes place.