Abstract: A shock absorber fastening at the bumper of motor vehicles, in which an impact plate is secured externally at the bottom of the shock absorber housing which projects considerably beyond the circumference of the shock absorber housing bottom; the impact plate is embedded within a shock absorber bearing of an elastomer or polyurethane material; the impact plate is detachably secured at the bumper by way of a metal cap at least partly surrounding the shock absorber bearing, through which a shock absorber housing part is adapted to be extended.

Abstract: A switch, particularly for a combined switch housing for a windhsield wiper and washer installation of a motor vehicle which controls both a multistage wiper system as also the washer system combined therewith, the switch housing is a two-partite housing whose upper part is rotatable with respect to the lower part, for example, for purposes of controlling the windshield wiper system whereas it is axially displaceably guided together with the lower part, for example, for purposes of engaging the windshield washer system.

Abstract: An external pull handle at motor vehicle doors with a soil-protecting arrangement which is constituted by a cover cap that is open toward the rear and covers the forward area of the pull handle; the cover cap is provided with an enlargement caused by an offset as viewed in a direction opposite the driving direction.

Abstract: A method for fastening by brazing (hard-soldering) the blades of a rotor for a hydrodynamic torque converter or the like, in which the blades are fastened with respect to an inner shell by means of lugs which are extended through corresponding slots in the inner shell and are thereafter bent over; in the assembly, the blades are fixed in the given position in an outer shell by one circumferential clamping band each whereafter the inner shell is assembled by extending the lugs through the slots thereof and the lugs are thereafter bent over; a wire ring of soldering or brazing material is then applied at least within the joint area of the outer clamping band with the outer shell and the assembly is then heated, preferably in a protective gas atmosphere to a temperature above the melting temperature of the soldering or brazing material; after the soldering or brazing material has run into the gaps and cracks the assembly is then cooled.

Abstract: A hydrodynamic torque converter for vehicles, particularly for passenger motor vehicles, with at least one pump wheel, one turbine wheel and one guide wheel supported on a free-wheeling device, in which the guide blades are automatically adjustable, when the guide wheel rotates, in dependence on the centrifugal force in the sense of a cascade opening with an increasing rotational speed.

Abstract: A mounting support for a catalyst body which is adapted to be installed into an exhaust gas line of an internal combustion engine; the forces necessary for fixing the catalyst body which act in the longitudinal direction are thereby produced by walls of the mounting support which are located in front of and/or to the rear of the catalyst body, as viewed in the longitudinal direction of the mounting support, on that side on which the forces act laterally on the catalyst body; these walls support themselves at a distance from the catalyst body as measured in the longitudinal direction.

Abstract: A rotating fluid shear friction coupling with at least one shear friction gap formed by a wall rotating along with the input side and by a wall rotating along with the output side, and with two spaces in communication with the working gap, one on the inlet side and one on the outlet side; the radially outermost passage of the inlet side space into the working gap has radially a larger spacing from the center of rotation than the radially outermost passage from the outlet side space whereby the two spaces are separated from one another by a wall provided with controllable passages; the working gap is also provided with means, for example, in the form of a helical feed groove for the continuous automatic feed of the working medium through the working gap in the direction toward the space on the outlet side; the space on the outlet side has thereby a space portion which is delimited radially outwardly by walls that preferably rotate with one another as a unit, and is disposed radially outwardly of the radius of

Abstract: A control installation for shifting back an automatically shifted planetary gear change-speed transmission in which the various speeds are adapted to be engaged by servo-devices that are actuated by a pressure medium whereby the servo-device of the speed to be engaged is brought into readiness and is fully engaged only after the determination of the correct shifting point by means of at least one feeler device as a function of the latter; a solenoid valve is coordinated to the pressure line leading to the actuating member of the servo device and is adapted to be shifted by means of a shifting pulse into a position releasing the pressure to the actuating member of the servo-device whereby the shifting pulse is triggered by at least one rotational speed transmitter which detects the rotational speed condition of a corresponding transmission member.

Abstract: A clutch disk for motor vehicle main clutches in which a disk member carrying the friction linings is rigidly connected with a lateral sheet metal member by means of axially parallel bolts and this system is operatively connected torsionally elastically with a flange member which extends by means of a flange portion between the disk member and the lateral sheet metal member; the flange portion is thereby provided with apertures for the passage of the bolts interconnecting the disk member with the lateral sheet metal member, whereby several springs or spring groups are provided in windows of the disk member and of the lateral sheet metal member to which are coordinated correspondingly larger windows in the hub flange; in addition to an idling damping device, a separate damping device is provided for the operating range whose start of operation is controlled by a sheet metal control member which is being centered directly on the hub member and which includes two mutually oppositely disposed arms; the first arm

Abstract: An optical examining apparatus, particularly an isochromatic multiplier, with two optical elements, particularly partly light-transmitting mirrors arranged at a distance and at a definite angle to one another which enclose an object-receiving space, whereby the object is to be inserted between the two mirrors at a definite distance and/or in a defined angular position; an object carrier is thereby mounted at the edge or enclosure of at least one of the optical elements, which is provided with receiving and holding surfaces and fastening means for the object and which is adjustable in the angular position of the receiving and holding surfaces with respect to the plane of one and/or the other optical element; the object carrier thereby projects with its receiving surfaces and fastening means between the two optical elements.

Abstract: A retaining installation for adjustable vehicle seats, adjustable preferably in different planes, at which at least one free end of a retaining system is pivotally mounted; means are thereby provided which yieldingly connect the vehicle seat during normal driving operation independently of the position thereof with at least one fixed vehicle part and which upon exceeding a predetermined force acting on the retaining system or the seat, establish a fixed connection between the seat and the fixed vehicle part.

Abstract: A clutch disc for motor vehicle main clutches in which the disc member carrying the friction linings is torsionally elastically connected with the flange of a hub member, whereby several springs or spring sets of different characteristics are arranged in windows at the hub flange, on the one hand, and of the disc member as well as of a side plate rigidly connected therewith, on the other; at least two friction devices for the damping are provided whereby the start of the operation of at least one damping device is determined by a control plate which with its tabs, arms or the like engages into the windows intended for the accommodation of the springs and cooperates with the springs; the connection between the disc member and the side plate takes place by way of several axially parallel bolts which extend through the hub flange in corresponding apertures; the control plate has two approximately radially extending arms which include each a radial extension that--in relation to a direction of rotation--abut at o

Abstract: A sintered hard metal sealing strip particularly for constituting a radial seal in a rotary internal combustion engine, includes a hollow body with longitudinal ends each closed off by a sintered hard metal end face forming part of the hollow body.

Abstract: A pump wheel for a hydrodynamic unit, especially for a torque converter or a hydrodynamic coupling of motor vehicles, with a pump wheel outer shell that consists of cold-deformed sheet metal material with a welded-in hub member and which receives the pump wheel blades; the pump wheel blades are thereby cast together with a shell member matched to the inner surface of the pump wheel outer shell, whereby the shell member is so inserted into the pump wheel outer shell that entrainment members cast integral therewith engage in corresponding apertures of the pump wheel outer shell.

Abstract: A safety steering system for motor vehicles with a steering spindle which is concentrically surrounded over a part of its length by a plastically deformable deformation member and which is changeable in its length by an impact of the driver against the steering wheel caused by an accident; the end of the deformaton member remote from the steering wheel is thereby supported at a fixed vehicle part arranged at a distance to the end wall while an outer column which is arranged between the deformation member and the steering spindle within the area of the deformation member, is displaceable in case of an accident together with the steering wheel and with the adjoining part of the steering spindle; the deformation member is thereby constituted by one or several hollow bodies which have an inner diameter that is only slightly larger than the outer diameter of the outer column.

Abstract: A partial lining disk brake, especially for motor vehicles, with a U-shaped brake housing externally surrounding the brake disk and with hydraulically actuated brake cushions arranged on each side of the brake disk which are axially displaceably supported at guide members, preferably with the aid of their lining carriers; each brake cushion is thereby supported at two guide members which are arranged in the center plane of the brake cushion extending through the brake disk axis, whereby one guide member engages with the brake cushion from the outside as viewed in the radial direction while the other engages with the brake cushion from the inside.

Abstract: Apparatus for controlling a two-circuit brake system for motor vehicles with the aid of a controllable pressure reducing valve which reduces the pressure in the rear wheel brake circuit compared to that in the front wheel brake circuit and which includes a by-pass line between the pressure inlet from the master cylinder and the pressure connection to the rear wheel brakes which is controllable by a solenoid valve; the brake slippage at the front and at the rear wheels is thereby measured, the thus-obtained values are compared with each other, and the solenoid valve is then controlled by a pulse sequence as long as the brake slippage at the front wheels is larger by a predetermined value than that at the rear wheels.

Abstract: A fuel tank of a motor vehicle, in which the filter pipe terminates to one side of its rear wall at the top thereof; the filler pipe includes sections extending in horizontal and inclined planes and is provided with an inlet opening adapted to be closed by a closure lid and intended for the insertion of the discharge pipe; the discharge pipe thereby rests against the lower edge of the inlet opening, when filling the tank, while its upper nozzle surface abuts at a support plate, whereby a vent pipe terminates in the filler pipe downstream of the support plate; the discharge edge of the discharge pipe is thereby adapted to abut at the lower inner wall of the rear, straight and obliquely upwardly extending section of the filler pipe which is provided with an indentation directly downstream of this support place of the discharge edge of the discharge pipe in order to assure an unimpaired inflow of the fuel; the support plate, in its turn, leaves sufficiently large open areas for the passage of air, especially of

Abstract: A rotary piston internal combustion engine of trochoidal construction which operates with ignition of fuel-air mixture by spark plugs and which is equipped with a polygonal piston, for example, a triangular piston rotatably supported on the eccentric of an eccentric shaft. The piston slides with its corners along the trochoidal running surface, for example, along a two-arched trochoidally shaped running surface while a piston flank is disposed between each two corners of the piston, to which is coordinated a working chamber within the housing. The casing is also provided with an inlet channel having a throttling member arranged therein and with an exhaust channel.

Abstract: A multi-circuit brake installation for vehicles, in which two transmitter brake pistons which possess differently large effective brake pressure piston areas and which are hydraulically connected with each other, operate within a master brake cylinder actuatable at will by means of a servo-assist; these two transmitter brake pistons are connected into a respective brake circuit and are provided with corresponding means for limiting the relative movement with respect to one another, whereby control means are provided independent of the brake circuit for disengaging the hydraulic drive connection between the two transmitter pistons, which are displaced positively into the disengaging position exclusively upon the occurrence of a critical value of the servo-assist.