Abstract: An actuator for the electromotive actuation of a parking or stop brake, especially of a private car comprises, downstream on the electric motor, a planetary wheel transmission which is axially cascaded in a multi-stage manner and comprises a centering pin which is radially mounted on the two front ends thereof and extends coaxially to the output shaft, on the radial overdefined bearing arrangement thereof. Respectively one planet carrier comprising a pinion is embodied, along the centering pin, as a sun wheel for the planet wheels on the planet carrier of the following transmission step.

Abstract: Disclosed is an actuator (11) for electromotively actuating the braking mechanism (22) of a parking brake, especially in a motor vehicle. In order to operate said actuator at low noise even at a high motor speed, the motor (12) of said actuator (11) is provided with a speed reducing element comprising a pinion that preferably has only two teeth and permanently engages with the helical teeth (18) of an intermediate gear (19) as a result of the ribbed shape of the teeth of the pinion, which wind around the pinion shaft (16). The intermediate gear (19), along with a spur toothed pinion (20), directly drives an output gear (21) encompassing the output shaft (14) of the actuator.

Abstract: The invention relates to an actuator for the electromotive actuation of a parking or stop brake, especially of a private car. The actuator comprises, downstream on the electric motor, a planetary wheel transmission which is axially cascaded in a multi-stage manner and comprises a centering pin which is radially mounted on the two front ends thereof and extends coaxially to the output shaft, on the radial overdefined bearing arrangement thereof. Respectively one planet carrier comprising a pinion is embodied, along the centering pin, as a sun wheel for the planet wheels on the planet carrier of the following transmission step.

Abstract: The invention relates to a motor-driven pivoting device for a support plate that can cooperate with a positioning motor and be pivoted kinematically in relation to a holder, which is fixed to the object. In order to receive a mirror, the plate is provided with a fixed hollow spherical area on its rear side, which is directed away from the mirror, for stable mounting with a compact inbuilt part-turn actuator, mounted with the ability to pivot between two rigidly interconnected spherical surfaces along the generated surfaces thereof. The outer of the two interlocking spherical surfaces of the dual shell holder is embodied in the form of an assembly cap. Its inner surface is fitted out as a carrier for a device with a motor and a set of gears engaging with the gearing that moves radially to engage with the inner area of the device carrier along a generatrix of the inner generated surface of the hollow area.

Abstract: The device of the invention for filtering fluids conveyed at high pressure is easy to service and withstands very high pressures whilst having an appreciably larger filter area than conventional high-pressure filters.

Abstract: A smoothly operating tilting device (11) for a support plate (12) of a motor-adjustable motor vehicle exterior mirror is disclosed. The plate (12) has an articulating joint to a housing (13), for a rigid mounting. A drive motor (17) is furnished, for each of the both, orthogonal to each other (although arrangeable in any special disposition) tilting directions, which are connected to, at least in parts, flexible positioning rods (18). The above run in an arched guide (22) and are turned from the plane disposed parallel to the plate (12) in to the transverse direction, in order to bridge the mounting gap and connect with an articulated joint to the face of the back side, or the interior of the plate (12), for the transfer of pushing or pulling movements.

Abstract: The invention relates to a swiveling device (11) of the support panel (12) of an exterior automobile mirror that can be adjusted by means of a motor. Said device functions in a stable manner. The panel (12) is fixed on a housing (13) in such a way that it can swivel, by means of four threaded rods (18—18.18′—18′). Said housing is to be mounted in a fixed position. A geared motor (17, 17′) is provided in said housing for each of the two swiveling directions (11), which are orthogonal in relation to each other. Said geared motors are kinematically connected to two threaded rods (24—24) by a toothed wheel (19, 19′) and by threaded bushings (24—24) which are also toothed on the outside. Said threaded rods (18—18) are diametrically opposite each other in relation to the coaxial axes of rotation of the wheels (19, 19′) and can be moved in opposite directions to each other.

Abstract: The invention relates to a motor-driven pivoting device for a support plate that can cooperate with a positioning motor and be pivoted kinematically in relation to a holder, which is fixed to the object. In order to receive a mirror, the plate is provided with a fixed hollow spherical area on its rear side, which is directed away from the mirror, for stable mounting with a compact inbuilt part-turn actuator, mounted with the ability to pivot between two rigidly interconnected spherical surfaces along the generated surfaces thereof. The outer of the two interlocking spherical surfaces of the dual shell holder is embodied in the form of an assembly cap. Its inner surface is fitted out as a carrier for a device with a motor and a set of gears engaging with the gearing that moves radially to engage with the inner area of the device carrier along a generatrix of the inner generated surface of the hollow area.

Abstract: The star-shaped internal geared wheel (15) of a harmonic drive (12) consists of individual tappets (21) which are displaceably interconnected by a retainer ring (28) which circles them at approximately half the height of the tappet shaft, so that they form a single part that can be handled. The inner front end (28) of the tappet shaft, which is thermally dimensionally stable, is provided with a guiding shoe or at least provided with a slide-resistant coating opposite a radially elastically compressible head (26). The internal geared wheel (15) is produced as a one-part plastic injection-moulded element in a multiple component method, with a thermally dimensionally stable foot (23), support ring arms (28) which are elastically moulded onto the respective dimensionally stable and extremely resistant tappet shaft and head walls (27,32) consisting of different plastics.

Abstract: The invention relates to a smoothly operating tilting device (11), in particular, for the support plate (12) of a motor-adjustable motor vehicle exterior mirror, whereby the plate (12) has an articulating joint to a housing (13), for a rigid mounting. A drive motor (17) is provided, for each of the both, orthogonal to each other (although arrangeable in any relative spatial disposition) tilting directions, which are connected to, at least in parts, flexible positioning rods (18). The above run in an arched guide (22) and are turned from the plane parallel to the plate (12) in to the transverse direction, in order to bridge the mounting gap and connect with an articulated joint to the face of the back side, or the interior of the plate (12), for the transfer of pushing or pulling movements.

Abstract: The invention relates to a swiveling device (11) of the support panel (12) of an exterior automobile mirror that can be adjusted by means of a motor. Said device functions in a stable manner. The panel (12) is fixed on a housing (13) in such a way that it can swivel, by means of four threaded rods (18-18.18′-18′). Said housing is to be mounted in a fixed position. A geared motor (17, 17′) is provided in said housing for each of the two swiveling directions (11), which are orthogonal in relation to each other. Said geared motors are kinematically connected to two threaded rods (24-24) by a toothed wheel (19, 19′) and by threaded bushings (24-24) which are also toothed on the outside. Said threaded rods (18-18) are diametrically opposite each other in relation to the in opposite directions to each other.

Abstract: The star-shaped internal geared wheel (15) of a harmonic drive (12) consists of individual tappets (21) which are displaceably interconnected by a retainer ring (28) which circles them at approximately half the height of the tappet shaft, so that they form a single part that can be handled. The inner front end (28) of the tappet shaft, which is thermally dimensionally stable, is provided with a guiding shoe or at least provided with a slide-resistant coating opposite a radially elastically compressible head (26). The internal geared wheel (15) is produced as a one-part plastic injection-moulded element in a multiple component method, with a thermally dimensionally stable foot (23), support ring arms (28) which are elastically moulded onto the respective dimensionally stable and extremely resistant tappet shaft and head walls (27,32) consisting of different plastics.

Abstract: A shoulder rest for a stringed musical instrument has a carrier for a shoulder-engaging cushion and for two clamping devices which can engage opposite sides of the body of an instrument. One of the clamping devices is adjustably coupled to the carrier for movement toward and away from the other clamping device. The coupling comprises an elongated arm which is provided on the one clamping device and extends longitudinally of the carrier, two annular stops on the carrier, an elastically deformable sleeve-like self-locking bearing between the stops, and an affixing element adjacent the bearing and also located between the stops. The arm extends through the stops, through the bearing and through the affixing element, and the arm can be shifted longitudinally of the carrier by overcoming the resistance of the bearing. Once the arm assumes a desired position, a screw of the affixing element is caused to engage the arm and to fixedly retain it in the selected position.

Abstract: The leg of a cello, a double bass or an analogous relatively large bowed stringed musical instrument is prevented from directly contacting and scuffing and/or otherwise damaging the floor by an attachment which has a carrier member separably connectable to the leg and a supporting member which is permanently or separably connected to the carrier member and permanently or separably supports a hemispherical or conical floor contacting element of soft elastomeric material, preferably a material which contains or consists of silicone. The carrier member and/or the supporting member can be made of a metallic material.

Abstract: The invention proposes a chin rest for a string instrument, e.g. a violin or fiddle, that is equipped, in its chin rest plate, with an opening that enables a better conformance of the chin rest to the human contour and that is possibly held in pivotable fashion to the body of the string instrument and, therewith, can follow the pivoting motions of the head of the person using the instrument. Furthermore, the chin rest is combined with a so-called damper support.

Abstract: A boring unit comprises a rotary spindle and a tool support mounted therein. The tool supports includes a rearwardly extending headbolt and a rearwardly extending supporting arm. The supporting arm engages an inclined wedge surface, the latter being movable by a connecting rod so that the wedge surface imparts rotary movement to the supporting arm and to the tool support about an axis of adjustment which is oriented perpendicular to the axis of rotation of the spindle, thereby moving the tool in a radial direction. The headbolt of the tool support is retained within a chucking cage. The chucking cage is movable to a position for releasing the headbolt by means of the movable connecting rod.

Abstract: A shoulder rest (1) for a string instrument having a support plate (2) including a belt-like strip (7) and a padding plate (6) is disclosed. A support bracket (3) extends along the longitudinal axis of the support plate (2) and is attached at one end (8) to the support plate (2). The other end of the support bracket (3) is connected with the support plate (2) only by means of a spacing adjustment mechanism (21, 22, 23, 24) acting along the longitudinal axis. A height adjustable clamping device (5) is mounted on the fixed end of the support bracket (3), and a second height adjustable clamping device (4) is mounted on the free end of the support bracket (3) by means of a longitudinally extending, sliding support arm (18) telescopically contained within a casing (19).

Abstract: The invention herein disclosed is directed to novel magnetic cores, particularly magnetic tape-wound cores, and to a new, novel and less expensive method of manufacture. The alloys employed in the manufacture of these cores employ smaller quantities of expensive metals such as nickel and, accordingly, result in substantial savings. The cores are exceptionally useful because of their high available flux-density change and high pulse permeability. Generally, the alloys employed contain nickel contents of from about 49 to 56 percent by weight of the alloy, and the remainder is substantially iron and small quantities of additives. The magnetic core is heat treated in a hydrogen atmosphere for several hours, cooled to room temperature, then reheated above the Curie Point and then cooled in a transverse magnetic field. Alternatively, it is possible to cool to just above the Curie Point, and omit the room temperature cooling and subsequent reheating.

Abstract: Odorless benzoic acid is prepared by treating benzoic acid, after crystallization, with an inert gas at temperatures in the range of 50.degree.-100.degree. C. The process is best carried out using benzoic acid crystals or particles having a particle size of less than 1 mm in a moving or fluidized bed.

Abstract: A process for purifying benzoic acid, especially benzoic acid obtained by the catalytic oxidation of toluene in the liquid phase which can be contaminated with impurities such as diphenyl, methyldiphenyl, a phenyl-benzoic acid, benzaldehyde, benzyl benzoate, succinic anhydride, phthalic anhydride, formic acid or formaldehyde, by contacting the benzoic acid with an amine of the formulaH.sub.2 N -- Rwherein R is hydrogen, a straight or branched chain alkyl radical of 1 to 4 carbon atoms or a cycloalkyl radical of 5 or 6 carbon atoms or a salt thereof and benzoic acid is distilled off or sublimed from the resultant reaction mixture. The benzoic acid so obtained can be reacted with sodium hydroxide solution and highly pure sodium benzoate can be removed by extraction with toluene or steam distillation.