Abstract: A protective molding for an edge of a hinged motor vehicle part, characterized in that the molding has a substantially V-shape cross sectional configuration and includes a guide leg terminating along one longitudinal side in an end portion, and a mounting leg for mounting on the vehicle part, the mounting leg being provided along the other longitudinal side of the guide leg, the guide leg defining a contact area adopted to contact an inner surface of the vehicle part adjacent said edge, and in that the end portion of the guide leg curves outwardly with respect to said V-shape configuration of the molding in a hook-shape adapted to surround the edge of the vehicle part for protecting said edge and wherein a portion of the outwardly curved, hook-shaped end portion of the guide leg adapted to surround said edge is tapered.

Abstract: An electrically driven rail or track bound vehicle which can be supplied with electrical power from an overhead wire. The vehicle includes a current collector carrying at least one bow trolley, with the current collector being adjustable to varying levels. A width of the bow trolley is automatically variable in such a manner that, with the current collector being adjusted to a low level, the bow trolley is narrow and with the current collector being adjusted to a high level, the bow trolley has a wide width. The width of the bow trolley is variable continuously with height variations of the current collector.

Abstract: A cross country ski binding has a support element attachable directly to a ski for engaging a forwardly extending boot sole extension, and is also provided with latching mechanism for latching the sole extension to the supporting element, under imposition of spring forces. The cross country ski binding may include spring biased detent members engageable into detent provisions provided directly on the boot sole extension, such that the forward part of the ski boot is automatically locked in position upon insertion of the boot sole extension into the support element. Preferred embodiments of the invention include those accommodating an axial movement of the boot sole extension into the support element and latching mechanism, as well as embodiments wherein the boot sole extension is placed downwardly over a pivot pin forming part of the holding mechanism. Also, certain embodiments of the invention include additional locking levers for locking the latching mechanism in a latched position.

Abstract: A cover for passenger car trunks that are accessible through a rear wheel or tailgate that is movable about a horizontal hinge axis, said cover being made with elastic material and attached to a trunk body portion and the rear lid. The attachment of the cover to the trunk body portion and lid is achieved by elastic members that are spaced from each other on the cover and are located in hollow elements that are connected to the cover and extend perpendicularly to a vehicle longitudinal axis. In accordance with a preferred embodiment, the hollow body members are tubes about which the cover is wrapped and through which elastic cords pass or within which they are fixed, the elastic cords being connected by releasable snap lock fasteners to the body and lid, respectively.

Abstract: A method for using mass-produced light-emitting diodes of a predetermined luminance in instruments requiring a precise luminance value and a light-emitting diode arrangement for adapting such mass-produced light emitting diodes to such instruments. The above-noted method includes the steps of disposing an LED in a lengthwise adjustable manner within a sleeve, closing the sleeve with a light diffusing disc at an end thereof from which the light from the LED is intended to merge and displacing the LED within the sleeve in such a manner that a precisely defined luminance appears at the diffused disc. In accordance with a preferred embodiment of the apparatus, a tubular sleeve of an elastic plastic material is provided with mounting threads at one end thereof for mounting same within a cap with a light-diffusing disc located between the threaded end of the sleeve and the cap. Additionally, the sleeve is provided with longitudinally extending beads within which electrical connectors of the LED can be mounted.

Abstract: A process for exposing silicon crystals on the surface of an aluminum alloy of high silicon content and with undissolved silicon particles, wherein the aluminum alloy is connected as the cathode in an electrolyte containing an aqueous alkali nitrate solution which is at least 0.01 molar with respect to the nitrate ions and is subjected to electrolysis with a minimum current density of 0.5 A/dm.sup.2 to remove aluminum from the alloy surface without removing silicon crystals. The electrolyte can also contain at least 0.005 mol/l fluoride ions and 0.05 mol/l-14 mol/l nitrite ions to suppress generation of hydrogen at the cathode and oxygen at the anode, respectively.

Abstract: A motor vehicle, especially a truck, with a cab and a cooling system for an internal combustion engine is disclosed. The cooling system comprises a heat exchanger disposed in an engine compartment and provided with an associated blower, and at least one additional heat exchanger located outside the engine compartment and with which an additional blower is associated. The additional blower is mounted on a roof of the cab and is connected through a channel with the additional heat exchanger which is located inside the channel in the vicinity of one wall of the cab.

Abstract: A spring seat with a supporting groove for the freely terminating end of a spring wire of a coil spring for an axle suspension of a motor vehicle. The supporting groove extends merely over a circumferential angular range of about 75.degree. to 120.degree.. The supporting groove is fashioned to be approximately V-shaped in cross section and the terminating end of the spring wire of the coil spring only contacts the flanks of the V-shaped supporting groove.

Abstract: A wheel cover for wheels of a passenger motor vehicle which includes a mounting arrangement formed of several retaining elements located on the wheel cover. The retaining elements are adapted to engage in groove-shaped recesses in a wheel rim by means of flexible locking elements. The retaining elements are provided with opposite bearing portions that are associated with each of the locking elements, with the opposite bearing portion supporting themselves at a dish of the wheel.

Abstract: An automotive vehicle, especially a passenger motor vehicle, with front body sections yielding with respect to forces of a magnitude of a pedestrian impact acting from the front and/or from above the body sections. The body sections are constructed so as to be impact-resilient along their boundary edges. The vehicle body sections include a front hood and/or body portions surrounding the front hood, with the hood and surrounding body parts being supported on reinforcing parts of the vehicle body structure by way of permanently deformable deformation members.

Abstract: A preliminary heating installation for glow plugs in air-compressing internal combustion engines, in which a delay circuit is provided that enables from the beginning of the preliminary heating and for a predetermined duration a superincreased heating current by at least partially short-circuiting a series resistance; a heating spiral is selectively provided in the suction air path.

Abstract: Process for preventing the pumping of a hydraulic valve clearance compensating element in a valve operating mechanism of an internal combustion engine, wherein a valve actuating lever is supported by means of a hydraulic valve clearance compensating element in a bearing zone of the lever and is controlled by a cam is disclosed. The process is characterized in that during operation of the engine, an auxiliary force which counteracts a compensating force of the valve clearance compensating element, and which is greater than the compensating force, is applied to the valve clearance compensating element only during a valve lifting phase of the cam in response to movement of the cam, the auxiliary force acting upon the bearing zone of the lever and being independent of a bearing force of the valve actuating lever.

Abstract: An arrangement for locking a male connecting member adapted to be inserted into a bore of a coupling member in which the female coupling member is provided with two cutouts generally at right angle to each other, of which one breaks through a portion of the wall forming the bore; a locking member of sheet-metal material is loosely inserted into the one cutout whereupon a spring is loosely placed over the locking member to urge the locking member inwardly, and a cap-like member is mounted over the female coupling member which covers externally the cutouts and holds the spring in place in prestressed condition.

Abstract: A form of electrical heating device, which is particularly applicable to hair driers but may also be useful in fan heaters or other electrical heaters for gaseous or other fluid media, comprises an insulating support plate around which a resistance heating wire is helically coiled with neighbouring turns of the coil offset to achieve improved heat exchange to the medium flowing over it and while allowing the device to be produced inexpensively and in a simple and trouble-free manner. The centers of the respective groups of turns which are similarly offset may lie on parallel lines or lines which converge along the length of the device. There may be two such groups or more, four for example. The turns are located in suitably dimensioned slots in the edges of the support plate; the wire may be bent into meander or sinuous form, in which case it can be made to grip the support plate in the region of the slots.

Abstract: A cast crankshaft with recesses or apertures provided in crank webs of the crankshaft and are formed in adjoining inner area of the casting material forming the main and crank pins by cores inserted therein prior to casting for the reduction of the weight and of the rotating out-of-round masses as well as of the counterweights thereof. A ratio of the smallest distance of the fillet of the crank pin from the outer surface line of the recess to the diameter of the crank pin lies between the values of 0.45 and 0.66, preferably at a ratio of about 1:2 with such distance being approximately as large as the distance between adjacent fillets at the crank and main pins from one another.

Abstract: An exhaust gas turbocharger having inlet channels combined only directly ahead of a turbine rotor at the periphery thereof. An annular gap is arranged within the area in which the back surface and an periphery of the turbine rotor form a circumferential circular edge. A part of the exhaust gas flows from the spiral housing through the annular gap into an annular channel arranged at the rotor back surface, from which branch off a return line to the charging air channel of the compressor, and a by-pass line to a turbine exhaust gas line, by-passing the turbine.

Abstract: An arrangement to eliminate the disadvantage of explosions caused by intake line backfiring resulting under cold engine starting conditions of internal combustion engines equipped with fuel injection systems of the type that inject, under cold starting conditions, additional fuel in finely divided form into the manifold intake pipe. In an improved fuel injection system, a fuel distribution arrangement comprising a fuel admitting portion communicating with an injection nozzle, and fuel feed components each of which extends from the admitting portion to a corresponding one of a plurality of intake lines to the engine is provided in the manifold intake pipe.

Abstract: A wheel suspension for driven wheels, especially rear wheels of a motor vehicle, by means of approximately triangular tilted control arms. Each of the control arms includes a longitudinal control arm and a transverse control arm, the transverse control arm is articulated on. The vehicle side opposite to the respectively associated wheel supported by the tilted control arm beyond a longitudinal center axis of the vehicle to the vehicle superstructure. A tilted control arm carries an axle gear mechanism connected to the wheel carried by this tilted control arm through a jointless shaft. The wheel of the other tilted control arm is connected to the axle gear mechanism through a jointed or universal shaft.

Abstract: A control device for controlling a recycling of exhaust gases into an intake system of a self-igniting internal combustion engine which includes a signal generator, constructed as a pneumatic control slide valve mounted to a fuel injection pump. The signal generator is controlled by the respective instantaneous load conditions as a function of the rotational speed of the engine and the load on the engine by a non-reactive scanning of a position of a control rod associated with the fuel injection pump. The signal generator is coupled with the control rod and a pneumatic signal is transmitted by the signal generator in dependence upon a position of a control piston of the signal generator.