Abstract: In the case of a spinning or twisting spindle to be arranged vertically, having a spindle shaft which is disposed in a spindle bearing housing by means of a step bearing and a bolster which is constructed as a roller bearing, it is provided that the rollers of the roller bearing are guided such that, at least when the spindle shaft rotates, they are aligned diagonally with respect to the axis of the spindle shaft in such a manner that they exercise an axial thrust in the direction of the step bearing on the spindle shaft.

Abstract: A method for the controlled addition of an additive to the fuel supply of a vehicle internal combustion engine, in particular a diesel engine with an exhaust particulate filter, in which the addition is performed as a function of an increase in the fuel supply. While the vehicle is in motion with the engine running, the fuel level is measured at predetermined short time intervals and, having been averaged over a predetermined number of these time intervals, is fed to a measured-value storage device in which the previous average value is compared with the new average value. When a differential value is detected in the average value comparison which exceeds a predetermined tolerance level, an addition of additive proportional to the increase in the level is triggered. After each comparison, the previous average value is erased and replaced by the new average value.

Abstract: A device for mounting and fixing the hydraulic unit of an anti-lock system as a carrier for the hydraulic unit includes a bracket which is itself fastenable to the vehicle body. The hydraulic unit is mounted in a vibration-insulating manner by three rubber bearings on the bracket arranged fixedly on the body. These bearings each comprise a bearing journal connected firmly to the housing of the hydraulic unit. A thick-walled rubber sleeve buffer surrounds the bearing journal coaxially. A half-shell-shaped bearing element is fixed to the bracket and supports the respective rubber buffer over a lower 180.degree. region. The half-shell-shaped bearing elements and the shell parts are equipped with catch elements which can be brought into positive engagement with one another.

Abstract: The trench pattern of a dielectrically isolated island architecture is filled with doped polysilicon and used as an interconnect structure for circuit devices that are supported within the islands, thereby decreasing the amount of topside interconnect and reducing the potential for parasitics beneath tracks of surface metal. The trench pattern may serve as a voltage distribution network or provide crossunders beneath surface tracks. In addition, at least one of the islands may contain one or more auxiliary poly-filled trench regions to perform the crossunder function. Such an auxiliary trench region may be also provided in an island that contains a circuit device. Manufacture of the conductor-filled trench structure may be faciliated by depositing polysilicon over a dielectrically coated trench grid structure and then planarizing the polysilicon to the surface of the oxide dielectric. The exposed polysilicon is doped and then oxidized to seal the dopant, which forms a thin oxide layer on the poly.

Abstract: A motor vehicle adjustable safety steering column for a motor vehicle, including a column with an air bag, has a steering spindle which can be pushed together in a telescope-type manner and is disposed in outer casing tube parts. The steering column are supported by way of a deformation element. The deformation element comprises a first outer casing tube part which, on the end side, is supported on an inner casing tube to envelope the deformation element. This casing tube has a toothed rack into which a pinion of an adjusting device engages for axial displacement of the steering column. Thus, a steering column of compact construction can be both axially adjustable and have an energy-absorbing effect.

Abstract: A suspension arrangement for exhaust installations on motor vehicles, in particular exhaust installations with large-area, flat designs of mufflers joined together by means of an upper shell and a lower shell. The arrangement creates an elastic muffler suspension which is near the center of gravity, is space-saving and close to the vehicle bottom but is still easy to assemble. The arrangement has a hollow profile type of component protruding through the muffler at its center of gravity and essentially at right angles to the vehicle bottom, open at its outer ends and solidly connected to the upper shell and the lower shell, and is positively connected to the elastic suspension part fastened to the vehicle bottom.

Abstract: A flash analog-digital (A/D) coverter for producing an n-bit binary number whose value is related to an analog input voltage value includes a resistor ladder network having 2.sup.n-1 +1 nodes. Each node is coupled to a comparator stage to provide an intermediate reference voltage to the stage. Each stage has a first output at which is provided a first output voltage whose value depends on whether the input voltage exceeds the intermediate reference voltage, and a second output voltage whose value depends on whether the input voltage exceeds the intermediate reference voltage by a least significant bit voltage. A combinational logic network is coupled to the first outputs of the stages for decoding the n-1 most significant bits of the n-bit number based on the highest intermediate reference voltage which does not exceed the input voltage.

Abstract: There is disclosed a method of fabricating BiCMOS semiconductor devices. External metal lines are not used for connecting the NPN bipolar device and NMOS device, or NPN bipolar device and PMOS device. In this case, the collector and base of the bipolar device are respectively in common with the drain and source of the CMOS. The bipolar transistor is in common with the bulk region of the CMOS, so that the diffusion layer is commonly used in the NPN-PMOS pair, and the diffusion layers of the connecting part are connected together in the NPN-PMOS pair. A metal line is connected to the junction of the diffusion layers, thus decreasing the connecting area of the metal line. Hence, the integrability of the chip is increased, and the metal connection causes a reduction of the RC delay time, thus improving the operational speed.

Abstract: The invention relates to connecting rods for piston engines, made of sintered metal, the connecting-rod shank consisting of two individual booms separated from one another. The object is to connect the individiual booms to the connecting-rod eyes in such a way that the danger of buckling is effectively minimized. The object is achieved in that the arrangement of the connection of the individual booms to the connecting-rod eyes takes place at such an angle and these connections are made so smoothly by means of transitional radii that the force flux between the connecting-rod eyes and the individual booms has an optimum course.

Abstract: A telephone test set that performs dry loop testing of telephone lines has a passive speech network, a speakerphone circuit, and an amplifier and a speaker coupled to the speakerphone circuit. The passive speech network and the speakerphone circuit area isolated by the use of latching relays which are switched by a relay driver circuit that provides a short current burst. Line power can be used to power the speakerphone, so as to extend battery life of a battery which can augment the line power as needed.

Abstract: A method for manufacturing a Waffleline structure includes making holes in predetermined array pattern through a substrate material sheet, depositing layers of materials on the sheet until the holes are filled, machining the layers off a first side of the sheet to expose the substrate material, and etching the substrate material away, leavign a Waffleline structure having an array of mesas of the layers of material disposed on a base of the layers of material. The method may additionally include applying a mask to the first side of the sheet after the step of machining, and depositing further layers of material on a second side of the sheet opposite the first side following the step of applying the mask. The method may additionally comprise the steps of vapor blasting, chemically cleaning, or brushing the Waffleline structure following the step of etching.

Abstract: A reciprocating piston is disclosed with variable compression height for internal combustion engines in particular. For structural simplification of the temperature-dependent change in the compression height of the reciprocating piston, a spring is provided which consists of a shape memory alloy and interacts with the pressure limiting valve. This permits temperature-dependent change in the compression height of the reciprocating piston exclusively by the pressure limiting valve so that structural simplification is achieved.

Abstract: An electromagnetic motor includes a rotor having a plurality of magnets mounted along a perimeter of the rotor. Preferably, adjacent magnets have opposite poles facing outward. One or more electromagnets are disposed adjacent to the perimeter of the rotor so that as the rotor rotates, the magnets mounted on the rotor are carried near the poles of the electromagnets. Current is supplied to the electromagnets by a drive circuit in a predetermined phase relationship with the rotation of the rotor such that, for substantially all angular positions of the rotor, magnetic attraction and repulsion between the poles of the electromagnets and the magnets mounted on the rotor urge the rotor to rotate in a desired direction. Reflective material is mounted on the rotor in predetermined angular positions. The drive circuit includes a photosensitive device which produces a signal whose value varies according to whether the device is receiving light reflected from the reflective material.

Abstract: A releasable fastening device, especially for attachments on convertibles, by means of which the attachment can be snapped reversibly without further aids to the convertible body. A hook part connected pivotably to the attachment via a tensioning device can be hooked at a body part bordering a receptacle on the convertible body and can be braced against the receptacle by means of the tensioning device, after which the fastening device is fixed in its end position by means of a beyond dead-center position of the tensioning device. Distance tolerances between the receptacle and attachment can be compensated by a change of length within the tensioning device. The tensioning device is formed only by a flexural spring which is pivotably mounted at one end on the hook part and at the other end on the attachment.

Abstract: A process brings out a high contrast in natural grain of a naturally pale wood via infrared irradiation having a wavelength which is as long as possible. This infrared radiation can come from a conventional infrared emitter or, more preferably, from a carbon dioxide laser. Due to the contact-free heating near the surface which is effective in a stagnant ambient atmosphere, the new wood part of the grain is browned, while the harder old wood part remains essentially unbrowned. This causes the natural grain of the wood to stand out in contrast. Due to the contact-free and turbulence-free mode of operation of the heating, the grain pattern produced is uniform. Any scratches or chatter marks in the wood are simply covered over and remain invisible.

Abstract: This invention relates to a sound wave generator with a variable effective aperture angle according to the electromagnetic principle for therapeutic applications and particularly for the contactless smashing of a concrement situated in the body of a living being. The sound wave generator includes a flat coil and a metallic diaphragm which is insulated with respect to the flat coil. The flat coil includes three separately activatable and concentrically arranged coil sections. The sum of the areas of the inner coil section and the center coil section is equal to the sum of the areas of the central coil section and the outer coil section. By means of the varying activation of the coil sections, the aperture of the shock wave source can be changed so that the focus geometry and the peak pressures can be varied for different applications, particularly kidney and gallbladder lithotrity.

Abstract: An internal-combustion engine has a rocker lever valve gear equipped with a roller for the cam-controlled actuating of charge cycle valves. Each rocker lever of the rocker lever valve gear has an arm provided with a circular-arc-shaped longitudinal part. Along the longitudinal part, an abutment point can be shifted as a function of parameters of the internal-combustion engine. The resulting changed leverages on the rocker lever vary the valve lift.

Abstract: A device for adjusting a relative angle of rotation of a camshaft with respect to a drive wheel of an internal combustion engine utilizes a hydraulic linear motor for actuation. A hydraulic pump with a pump rotor is axially arranged with respect to a longitudinal or adjustment axis of the linear motor.

Abstract: An arrangement for regenerating a soot burn-off filter in the exhaust duct of an air-compressing fuel injected internal combustion engine having a mechanical speed governor and an altitude matching device dependent on the atmospheric pressure into which the regenerating arrangement is integrated in such a way that, as the exhaust-gas backpressure increases, the speed governor is acted upon via the altitude matching device to reduce the injection quantity to be metered to the internal combustion engine.

Abstract: An arrangement is disclosed for spinning staple fibers to a yarn which has a feeding and opening device which opens up fiber material supplied in the form of slivers into a individual fibers, and a disk-type collecting element which takes over the separated fibers. It is provided that the collecting element has a conical fiber collecting surface which ascends toward the outside with centrifugal forces assisting in compacting the separated fibers to a composite.