Abstract: An electromagnetic motor apparatus is used for converting electrical energy into rotary motion and includes a housing having a crankshaft rotably mounted therein. A plurality of stators form cylinders and are mounted onto the housing. A plurality of armatures form the pistons and are movably mounted to slide in the stators. Each armature has an armature piston rod connected to each armature and to the crankshaft for turning the crankshaft responsive to the movement of the armatures in a timed sequence. A distributor is operatively connected to the crankshaft for distributing electrical energy applied to the distributor from the distributor to the stator windings. The distributor has at least one pair of electrical contacts moving in a liquid bath responsive to the rotation of the crankshaft to direct electrical energy to the stator in timed sequence so that electrical arcing is reduced in the distribution of the electrical energy in an electromagnetic motor.

Abstract: In the headlight of a motor vehicle, a holder of the objective is secured against rotation but is axially displaceable in the housing of the headlight. In order to adjust a width of cut of the objective a rotatable spacer ring, provided with projections cooperating with respective projections of the housing, is positioned between the holder and the end wall of the housing so as to adjust the position of the objective on an optical axis of the headlight.

Abstract: A chain saw is provided with an oil pump for supplying oil to the saw chain. The pump includes a piston immersed in a chamber formed in the housing of the saw and rotatable by a gear rigidly connected to the piston and rotated by another gear driven by a motor. The gear connected to the piston has an inclined end face which wobbles upon the rotation of the gear and is pressed by a helical spring against a supporting ball which is positioned in a recess of a flange bolt manually turnable from the outside of the housing. The path of adjustment of the supporting ball is greater than the diameter of the piston. The working pressure generated by the spring is translated directly to the piston.

Abstract: The wiper arm is fixedly connected with a rod of the five-link linkage, the transmission members of which include a frame stationarily arranged with respect to the body of the vehicle, a swinging member connected with the frame, two rods connected with one another, the first one being also connected with the swinging member, and a swinging lever connected with the frame and with the second rod, this swinging lever being driven by the pushing crank transmission. In this spatial five-link linkage, the hinges connecting the swinging member and the swinging lever with the frame are formed as pivotal connections, the hinge connecting one of the rods and one of its adjoining members is a spherical one, and the hinge between this rod and its adjoining member is formed as a pivotal connection, the axis of which is obliquely located with respect to the axis of one at least of the other pivotal connections in the linkage.

Abstract: An apparatus is disclosed for venting a fuel tank of internal combustion engines or the like, wherein fuel vapors developing in the tank are received in an intermediate storage unit containing an activated carbon filter and are delivered to the induction area of the engine in dependence upon operating conditions. The delivery is accomplished by an electrically controlled tank venting valve having a pass-through opening the cross section of which is continuously changed. This is achieved by changing the pulse duty factor of the drive pulse train for this valve. The pulse duty factor may be determined in the sense of a pure control using a family of characteristic fields in dependence on rotational speed and load of the engine, or by taking into account preferably averaged Lambda values with a reduction in the cross section of the pass-through opening of the tank vent valve as the mixture becomes richer.

Abstract: A vibrating conveyor has a working mass drivable in vibrations, a counter mass which is also driven via the working mass in vibrations which are transferred to a support or a mounting base, and a device for dampening or reducing this transmission which includes a plurality of roller bearing elements provided between the vibrating conveyor and a mounting base and each formed as a unit including two bearing shells with running tracks and at least one roller part between the running tracks, wherein the running tracks before and after the roller part is inclined in opposite direction in form of a predetermined curve, and when the counter mass is driven in rotation the counter mass and the mounting base are pressed from one another by the roller bearing element which results in damping relative to the mounting base.

Abstract: A method is proposed which serves to enable recognition, in microprocessors (1) provided with a monitoring device (2) having a signal generator stage for reset signals, of whether a reset signal was effected by the monitoring device (2) or by a power-on reset circuit (5). To this end, a comparison is performed between a comparison pattern stored in a non-erasable memory zone (6) and a pattern, which is typical of resetting erected by the monitoring device (2), located in an erasable memory zone (7).

Abstract: An air blower sucks air from an area of an air heated compartment of a motor vehicle and blows out an air stream into a different area of the compartment. A temperature sensor is located in the air stream at a relatively large distance from the air blower so as to entrain ambient air from the compartment. Due to the mixing of the discharged air stream with the ambient stream, an information about the overall temperature in the compartment is detected by a single temperature sensor.

Abstract: The commutating poles of vehicular-type d-c motors, for example for trolley buses or trolley cars, are made by winding, on edge, a copper strip, permitting the wound copper strip to resiliently, spring-like expand so that the individual spiral loops thereof will be slightly spaced from each other, and then exposing the copper strip in a fluidized bed to an insulating powder, for example polyethylene or polyurethane, which is subsequently cured in a hardening or sintering process.

Abstract: A diesel fuel filter, which is arranged in a conduit between a fuel tank and a fuel injection pump, comprises a housing accommodating a filter element and a cover non-releasably connected to the housing. A temperature-responsive switching device for switching fuel overflow quantities from the pump to the tank as well as a ventilation device are positioned in a chamber formed by a protruding formation of the cover and a flat plate connected to the housing. A plate shaped pressure control valve, which opens into a contaminated side of the filter element, connects that side to the chamber.

Abstract: A check valve is disclosed having a preset cracking pressure. The check valve comprises a valve element reciprocatably positioned within a valve body, both the valve body and the valve element including valve seats which seal together when the valve element is urged forwardly within the valve body. A plug is positioned within the rear of the valve body to constantly urge the valve element forwardly thereby defining a cracking pressure necessary to unseat the valve seats allowing the flow of fluid through the valve body.

Abstract: A pump comprising a housing and two end covers receiving a drive shaft with an eccentric thereon and with a plurality of radial pistons displaceable in radial bores provided in the housing and biased by springs. An inlet passage and an outlet passage are provided in each bore receiving the radial piston. A sealing disc is inserted between the housing and one of the end covers. Sealed through openings for high pressure medium are provided in the sealing disc. The maximal feeding flow of the pressure medium is limited by throttled passages provided in the sealing disc. A pressure control valve is provided, which is connected to an inner chamber of the housing, accommodating the eccentric.

Abstract: The invention relates to an electronically controlled fuel injection system for an internal combustion engine wherein all dependency on the supply voltage for the electro-hydraulic components is compensated for and/or the pressure-regulator characteristic dependent upon the pumped quantity is compensated for. With respect to the dependency of the electric fuel pump on the supply voltage, this is accomplished by means of a correction factor for the basic injection signal. Below a specific voltage value which corresponds to the voltage required for maintaining the system pressure, this correction factor becomes progressively larger. The pressure regulator characteristic dependent upon the quantity of fuel pumped is taken into account in the correction in a corresponding manner.

Abstract: A pulse shaper for inductive transmitters, in particular inductive crankshaft angle transmitters on internal combustion engines is suggested, wherein a Schmitt-trigger is connected with the output of the transmitter. A peak value detector (D1,C) is connected with the output of the transmitter and means are provided which set the trigger threshold of the Schmitt-trigger in dependency on the output of the peak value detector.

Abstract: The top surface (1a) of the TV camera has a tower block (5, 6) secured thereto including, for example, a "camera ON" or "red light" indicator.

Abstract: A multitube heat exchanger is provided with a take-apart fitting. The fitting is coupled to one end of the exchanger product tube. A cap ring is secured to the inner tube of the exchanger. An end cap adapted to seal against the cap ring is secured to the fitting. A split ring clamp serves to urge the end cap against the cap ring by virtue of a chamfered surface on the clamp urging against a complementary chamfer of the end cap.

Abstract: A damping device is proposed, which serves to equalize and reduce pressure fluctuations arising in fuel supply systems for internal combustion engines in motor vehicles. The damping device includes a damper element which has at least one damper diaphragm fastened in a damper housing and is arranged to define a fuel chamber which communicates via a feed pipe with a fuel distributor line. The feed pipe is oriented toward a flow tube which communicates with a fuel supply line and protrudes into the fuel distributor line. The fuel chamber of the damper element communicates via a further feed pipe with the fuel distributor line. The feed pipe and the flow tube are axially spaced apart from one another by a distance (A).

Abstract: To suppress quantitizing ambiguities upon digital transmission of an analog signal, a random access memory (RAM) (13) is connected at the end terminal of a digital transmission line, and has its output connected to an adder stage (15). The adder stage adds the digital value of +1 to the output from the RAM (13). The value of the digitized data word, incremented by +1, is then compared in a subsequent interrogation cycle of the value at the input to the memory and only if the deviation is greater than .+-.1, a comparator, effecting the comparison, provides a "store" signal for transfer of the new value to the RAM (13). The D/A converters, only then, are changed to provide a changed output analog signal.

Abstract: A lawn edger having a motor (14) arranged with a vertical axis of rotation, a fan and cutter assembly (15) within a hollow frame (11), cutting blades (17) being below the fan blades (16) and extending not only radially outwardly from the axis of rotation but also axially downwardly so that they slope towards the cutting edges, and cutting is affected over a small segment of the periphery of the cutting blades, for example, by tilting the lawn edger to one side.

Abstract: A fuel injection pump is disclosed in which the stroke disk of a rotating and reciprocating pump and distributor piston is supported on a rotatable roller ring. The roller ring is axially supported such that it slides on a support ring. In order to assure good lubrication of the supporting face of the support ring, the support ring has a plurality of flutes or grooves extending radially in its face oriented toward the roller ring. The grooves communicate with a radial conduit that is formed by an undercut or chamfer in the support ring.