Abstract: A plug-in connection device for the self-actuating electrical connection of a motor vehicle trailer to a towing motor vehicle with a socket (D) and a plug (S), which can be disposed on the motor vehicle trailer (for example the plug S) or the towing motor vehicle (for example socket D) During the coupling of the motor vehicle trailer to the towing motor vehicle, socket (D) and plug (S) can be aligned with respect to one another and can be moved by means of a drive (10), developed for example as a piston-cylinder configuration, relative to one another between an advanced connection position and a retracted resting position. Preferably a cover (5) of the socket (D) can be opened by displacing the contact insert (1), bearing contact sleeves (11, 12), in the direction of the connection position with the aid of drive (10). When the contact insert (1) is retracted into the resting position, the cover can be closed again.

Abstract: Device for grinding an external sleeve surface on a rotationally symmetrical body comprises a support frame displaceable along the external sleeve surface of the body and to which a driven belt grinder is fixed, and pivoted running rollers spaced in the circumferential direction of the body and resting on the external sleeve surface of the body, whereby a rapid and positionally exact grinding of the body is achieved.

Abstract: A fluorescent-lamp socket has a hollow dielectric housing, and a pair of identical conductive contact elements in the housing, each contact element is unitarily formed with an outer lamp-contacting end adapted to engage a respective pin of the lamp, an inner wiring end formed as a wire-engaging clip, a center part extending between the respective inner and outer ends, and an elastic tongue unitarily formed with the respective center part and projecting transversely toward the other contact element. The contact elements are formed of resilient sheet metal. The housing can include a web projecting between and holding apart the elastic tongues. Alternately it can be constructed such that either the tongues bear on each other and electrically interconnect the contact elements or each tongue bears on the center part of the other contact element to electrically interconnect the contact elements.

Abstract: A fluorescent-lamp socket has a hollow dielectric housing, and a pair of identical conductive contact elements in the housing, each contact element is unitarily formed with an outer lamp-contacting end adapted to engage a respective pin of the lamp, an inner wiring end formed as a wire-engaging clip, a center part extending between the respective inner and outer ends, and an elastic tongue unitarily formed with the respective center part and projecting transversely toward the other contact element. The contact elements are formed of resilient sheet metal. The housing can include a web projecting between and holding apart the elastic tongues. Alternately it can be constructed such that either the tongues bear on each other and electrically interconnect the contact elements or each tongue bears on the center part of the other contact element to electrically interconnect the contact elements.

Abstract: The invention concerns an induction cooking hob with multiple inductors fed at the same frequency or multiples of a common fundamental frequency to avoid beat frequencies. Separate generators are provided for two or more heaters. A high-power heater is provided with two or more inductors. To provide maximum power, the second inductor of the high-power heater may be supplied with power switched from the generator for a different heater.

Abstract: The sealing device for a control member (17) is provided with a shaft (16) passing through a sealed casing and comprising a tube (1) driven into a bore (3) of the casing (4). A shaft (16) of the control member (17) is engaged in the tube (1) and at least one joint (18, 19) ensures normal sealing between this tube and this shaft. It comprises a compression key (6) screwed on the tube (1) comprising an upper portion (8) overlying the tube (1) and surrounding the shaft (16) of the control member (17). A compression joint (15) is disposed in the space comprised between the upper portion (8) of the compression key, the tube (1) and the shaft (16).

Abstract: A modular induction heated cooking hob inductor and hob are disclosed. The inductor is a wound conductor having turns at substantially right angles to previous turns. Parallel turns of the conductor are separated by a layer of insulation adjacent to the turns of the conductor. The hob may comprise multiple inductors. The inductor may have sensors for detecting a device to be heated and/or illuminatable segments that light up in response to the presence of an object to be heated.

Abstract: For measurement and display of auditory evoked potentials of the brain, pickup electrodes (A, Ref), an amplifier circuit (1 . . . 5) and an evaluation facility (7) are used to display the time trend of midlatency auditory evoked potentials (MLAEP) and simultaneously therewith, during measurement of the information signals, the time trend of early brain stem auditory evoked potentials (BAEP), which is displayed at a higher time resolution as compared to the information curve. For this purpose an amplifier circuit is used the isolation stage (8) of which is arranged in a way so that the total gain of the amplifier unit (1, 3) connected between electrode assembly (A, Ref) and isolation stage (8) amounts to between approximately 1000 and 4000.

Abstract: A invention relates to a watch strap, having a strap end link 1 which is connected to a further component such that it can be pivoted about an axis transverse to the longitudinal extent of the wrist strap and which can be adjusted relative to the further component in the direction of the longitudinal extent of the wrist strap. The strap end link 1 is articulated on a pivot element 3 such that it can be pivoted about an adjustment axis 2 which extends, approximately in the strap plane, transversely to the longitudinal extent of the wrist strap, the pivot element being connected to the further component such that it can be pivoted through approximately 180° about a pivot axis 4 which is parallel to the adjustment axis 2. In this case, the pivot element 3 can be arrested in its pivot end positions. The adjustment axis 2 and pivot axis 4 are arranged one behind the other in this case approximately along the longitudinal extent of the wrist strap.

Abstract: A trailer coupling for motor vehicles has a bar, a ball provided on the bar, the bar being automatically adjustable between an idle position and an operating position, and an adjusting drive including an electric motor which automatically adjust the bar between the idle position and the operating position.

Abstract: An apparatus for installing between a pair of spaced terminals a wire having a conductive core and an insulating sheath surrounding the core and interrupted at spaced stripped regions has a head defining a passage having an outer end, a guide element on the head at the outer end forming a passage alignable with the head passage, and a supply for feeding the wire along the head passage and the guide-element passage. A cutter on the head at the outer end can sever through the core in the stripped regions between the head and the guide element and the guide element can be pivoted on the head about an axis transverse to the guide-element passage for directing the passage at any of a plurality of different angles to the horizontal and vertical.

Abstract: An electrical device having a base from which extend two parallel connector pins each having a small-diameter shank and a large-diameter head is fittable with a socket having a housing formed with a transverse wall having front and back faces and having between the faces a predetermined thickness substantially less than a distance between an end face of the device and the heads. The wall is formed with a pair of throughgoing slots each having a wide end through which a respective one of the heads can pass and an opposite narrow end so that the device can be fitted to the housing by passing the heads of the pins through the wide ends until the device end face engages the wall front face followed by turning of the device to displace the heads toward the narrow ends of the respective slots.