Abstract: A control variable propulsion control is obtained by taking the difference between: vehicle acceleration sensed by an accelerated sensor and vehicle acceleration derived from a driven axle or a driven wheel rotational speed as sensed by a high resolution sensor for vehicle speeds below a predetermined speed; and between vehicle acceleration derived from non-driven axle or non-driven wheels via a conventional rotational speed sensor and acceleration derived from speed sensed by the high resolution sensors for vehicle speeds above the predetermined speed.

Abstract: A theft protection system for an installation unit recessed in an installation passage protects the installation unit mechanically and by an electrically initiated alarm by permitting the installation to be pulled out of the installation passage to a distance limited mechanically by a movable protection stop and by actuating an electrical theft protection contact within this distance by utilizing the relative motion between the installation unit as an installation retention arrangement and the installation passage to initiate the alarm.

Abstract: A side body section for motor vehicles is disclosed in a whole surface flush side glazing unit where even the region of the center column is covered by a transparent shield. In the side body section according to the invention, a transparent shield is fastened to a door frame which is prolonged by the width of the center column. This produces only one separating line between the two side doors. The glass or synthetic glass shield is arranged in the plane of the side windows. In the region of the shield, the door frame has recesses which permit the fastening of receiver units for locking systems or the like to the inside of the shield.

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 vehicle speed, the lateral acceleration and control signals of the propulsion control. The logic circuit may also be used for changing the increase and adjusting speeds of the control elements of the propulsion control, and for connecting the drive of the wheels of an additional axle and disconnecting it again directly or under certain conditions, in a delayed way.

Abstract: A blade for liquid friction couplings consists of a disk formed with slot- or holelike apertures. In order to ensure that the blades will have a long service like whereas the occurrence of mixed friction (hump) will not adversely be affected, at least portions of the boundary surfaces of the apertures extend at an oblique angle to the surface of the disk.

Abstract: A hydraulically operating actuating device for a lift valve, in particular in an internal combustion engine, has a piston which is connected to the valve stem. The piston is positioned in a cylinder and separates two stroke spaces which are connectable, in each case via inlet and outlet openings which can be occluded by the piston, to a pump for the working fluid or a reservoir. In order to reduce the energy requirement of the actuating device, the two inlet openings, which in a central actuation range of the piston are open, are connected to one another directly by a line, and two springs which act in opposite directions and, in equilibrium, hold the piston in a central position relative to two end positions engage on the piston or valve stem.

Abstract: The invention relates to an internal-combustion engine-braking device and comprises a throttle valve actuated by a control piston both of which are arranged in a controlled bore in a cylinder head. To ensure lubrication of the control piston in a simple way, the control bore is equipped with a connecting orifice to the oil return bore leading from the engine rocker-arm space into the crankcase.

Abstract: A hand held firearm is provided with a detachable sight and a mount for mounting the detachable sight on the receiver of the firearm. The mount comprises a track, e.g., a rail track, which is provided on the top surface of the receiver of the firearm and adapted to slidably receive the detachable sight, at least one bore, which opens in the top surface of the housing at the bottom of the track, and a screw which is mounted on the detachable sight and extends into the bore. In order to provide the firearm with such a mount which can be operated in a simple and skillful manner, a fixing nut is rotatably mounted in the bore of the receiver. The screw which is connected to the detachable sight is screwed into the nut. The nut is adapted to be forced down in the bore against the force of a spring, and a knurled disk is provided, which is disposed on a laterally open slit of the receiver and is non-rotatably connected to and axially slidable relative to the fixing nut.

Abstract: The invention relates to an arrangement for sealing a stationary timing housing cover at the end face of an internal-combustion engine housing comprising cylinder head and crankcase. The timing housing cover is composed of a cylinder head side and a crankcase side cover part, between which an elastomer profile seal element is retained under compressive stress. The seal element exhibits a sealing lug oriented at right angles to the separating line to seal the end face contact surface of the internal-combustion engine housing in the plane of the separating line running between cylinder head and crankcase in the region of the adjacent edges of cylinder head, crankcase, cylinder head gasket located between the two latter, and the cover parts. The cylinder head gasket is provided with a flowable sealing medium applied bead-fashion on its end edge which faces the timing housing cover.

Abstract: The device for visibility measurement is designed primarily for use in motor vehicles. A light emitter is arranged inside the driver's compartment preferably on the rear view mirror in front of the windshield. The light emitter generates light pulses or flashes radiating through the windshield. The light scattered back due to soiling on the inside and outside of the windshield or in scatter zones, formed by fog or smoke or the like, in front of the windshield, impinges a light sensor, preferably likewise arranged on the rear view mirror inside the driver's compartment. By utilizing light pulses of various wavelengths and processing of the output signals of the light sensor in predetermined or predeterminable time windows or intervals, not only the respective visibility but also the type of viewing impairment can be determined.

Abstract: The invention relates to an independent wheel suspension for power driven rear wheel motor vehicles, having a wheel carrier and a lower and upper linkage for this wheel carrier. The suspension system has five individual links which are hinged at the wheel side to the wheel carrier and at the body side of the vehicle, with an upper linkage being formed by a rear transverse camber strut link, and a longitudinal tension strut link extending diagonally toward the front inside. The camber strut and the tension strut, as viewed in plan, having an imaginary intersecting point located between their ends and wherein, with respect to the longitudinal direction of the vehicle, the linking point of the camber strut at the wheel carrier is located in front of the linking point of the tension strut and wherein a reversed arrangement exists on the body side.

Abstract: The invention relates to a strut for a folding vehicle cover which bridges the roof width by being braced axially on load bearing connecting components on both sides of the vehicle by angled strut flanks, while a strut section driven by a spring loading arrangement is raisable in the strut plane relative to the braced ends of the strut flanks into a tensioned position in which the roof skin of the folding cover is stressed by the spring loading arrangement through the strut section, and while a further vertical displacement of the strut section is locked upon reaching a limit time position located above the tensioned position.

Abstract: A ring fuze for firearm ammunition comprises a hollow fuze ring, which contains a primer. A functionally reliable ring fuze which can easily be manufactured and can be used without a need for a separate abutment is substantially U-shaped in cross-section and its axially extending inner leg and preferably also its bottom are thicker than its axially extending outer leg.

Abstract: A foldable frame of the present invention is provided for supporting a convertible top of a vehicle having a tonneau space. The foldable frame is movable between a retracted and an extended position and includes a main hoop mounted to respective opposite sides of the vehicle for pivotable movement about a transverse axis of the vehicle, a pair of main guide rods, a pair of foldable roof side frames, a pair of roof frame guide rods for controlling the movement of the front members of each of the foldable roof side frames, and an intermediate hoop situated intermediate the roof front frame and the main hoop. The main hoop is of substantially trapezoidal shape and inculdes a pair of laterally spaced-apart diverging side members. The ends of the intermediate hoop are coupled to one of the roof frame guide rods for pivotable movement in relation thereto so that the length of the intermediate hoop is variable during retraction and extension of the foldable frame.

Abstract: A motor vehicle comprises two driven axles, one of which is adapted to be disconnected from the drive member by a disconnecting clutch, which is adapted to be automatically disengaged by clutch control in response to a brake application. In order to decrease the structural expenditure whereas the reliability of the handling of the vehicle is not adversely affected the disconnecting clutch consists of a positive clutch, which when it has been disengaged in response to a brake application is adapted to be automatically re-engaged in response to a release of the brake pedal or an actuation of an accelerator pedal when the engine is running at a speed above a predetermined threshold.

Abstract: A presentation podium is described which is versatile in use and in which the observer's attention is directed entirely to the goods to be displayed. For this purpose it is provided according to the invention that the presentation podium consists of a closed self-supporting, polygonal or circular frame to which inward-pointing horizontal support bolts are fastened in the region beneath its upper edge. Insert elements, such as platforms, plant tubs and the like, are insertable into the frame maintaining a uniform all-round air gap from the frame.

Abstract: An oil-cooled internal combustion engine comprises an oil pan, containing a common oil sump for a lubricating oil circuit and a cooling oil circuit. Each oil circuit contains a separate oil pump. The cooling oil circuit is directly connected to the sump and a lubricating oil circuit, comprising an oil filter and an oil cooler, is connected to the cooling oil circuit. A secondary cooling oil circuit branches off from the lubricating oil circuit dowstream of the oil cooler, and services engine portions which are subjected to particularly high temperatures, requiring increased cooling.

Abstract: A device for exhaust gas recirculation in diesel engines is described, in which an exhaust filter for the recirculated exhaust gas is arranged in an exhaust gas recirculation pipe branching off from the exhaust pipe. This exhaust filter insert is arranged in the branch of the exhaust gas recirculation pipe in such a way that its surface on the contamination side lies approximately parallel to the direction of flow of the main exhaust gas stream, to be precise in the region and course of a normal flow line close to the wall. In a preferred embodiment, the filter insert consists of a dimensionally stable porous pipe of sintered ceramic or sintered metal.

Abstract: An adjusting device to vary the inclination of a steering column of a motor vehicle comprises a rectangular frame which surrounds a casing tube accommodating the steering column, braces the same against the vehicle body and acts additionally as a guide lever for pivotal adjusting movement of the steering column. A motor driven adjusting mechanism is anchored at a fixed angle to the frame and to the casing tube and operates to pivotally adjust the steering column inclination.

Abstract: In a vehicle seat tiltable out of its position of use into an access position making it easier to board the vehicle and alight from it, the seat-cushion frame is caught on the vehicle floor by catching claws. To change the seat over into its access position, the backrest held pivotably on the seat-cushion frame first has to be swung down from its erected position of use onto the top face of the seat cushion. An actuating mechanism is coupled to the backrest in such a way that this tilting movement gives rise to a swinging-out movement of the catching claws from the floor mounting. The catching claws are changed over into a masked position safe against causing injury and, in the swung-up seat position, remain in this masked position. When the vehicle seat is tilted back, at the end of the return movement of the backrest the catching claws are released via the actuating mechanism and thereupon automatically swing into the floor mounting.