Abstract: A guide rail for use in drilling, cutting and grinding tools has two first and second pairs of guide surfaces (1, 2, 3, 4) arranged opposite one another relative to a first axis of symmetry (S1). Each pair of first and second guide surfaces are V-shaped and are laterally spaced apart and extend in the direction of a central axis of the guide rail. A second axis of symmetry (S2) extends perpendicularly to the first axis of symmetry (S1). An additional third pair of guide surfaces are disposed on opposite sides of the second axis of symmetry (S2) and have a flattened arrowhead-like sloping roof-shaped configuration and extend in the direction of the central axis.

Abstract: An array of M.times.N thin film actuated mirrors for use in an optical projection system, comprises an active matrix, an array of M.times.N actuating structures, an array of M.times.N mirror layers and an array of M.times.N supporting members. Each of the actuating structures includes a first and a second identically structured actuating parts, each of the first and second actuating parts having at least a thin film layer of a motion-inducing material, a first and a second electrodes. The first electrodes from each of the first and second actuating parts are physically joined, thereby serving as the common bias electrode, and the second electrodes function as the signal electrode. Furthermore, each of the mirror layers is divided into a first and a second reflectors. Each of the reflectors is provided with a first surface, a second opposing surface and a central tab portion therebetween.

Abstract: An alternator for use in an automobile comprises a first frame, a second frame, a stator, a shaft, a rotor, a current supply system and fans. The shaft is rotatably coupled to the first frame and the second frame, and extends outwardly beyond the first frame. The current supply system has a pair of slip rings, a pair of brushes and a brush holder. The slip rings are fixed to the shaft, and are electrically connected to a coil of the rotor. The brushes are urged against and in slidable contact with the slip rings, respectively. The brush holder is fixed to the first frame for retaining the brushes; and has a slip ring shield portion for covering and protecting the slip rings. The slip ring shield portion has openings which allow dust produced by the wearing of the brushes to be blown by the action of fans.

Abstract: A friction pump having individual components designed to form simultaneously essential parts of a magnetic bearing assembly for supporting the pump rotor, and essential parts adapted to fulfill essential functions of a friction pump.

Abstract: Guide bars (24, 32, 34) with thread guides (26, 36, 38) are arranged above the knitting needles (4). At least one group (G1 to G7) of at least two guide bars (36, 38) which are arranged one above the other is provided to increase the number of possible guide bars and/or to improve the accessibility of the guide bar region. This arrangement is effected in such a way that the thread guides of the guide bars (32, 34) arranged one above the other do not intersect.

Abstract: A method operating a pickling installation for pickling rolled strips comprises several consecutively disposed pickling basins filled with a pickling agent containing acid, through which the strip 4 is passed. A pickling agent containing acid is injected through injection nozzles disposed at least on the sides of the basin. A flexible adaptation to the respective pickling task with the aim of a reduced pickling time period is made possible if the nozzle injections on the sides are actuated variably. The pickling installation is provided for this purpose on both sides of the plurality of the basins, with injection nozzles above and below the strip traveling plane and upstream or downstream of base slide pads located in the basin.

Abstract: An assembly conveyor including two conveyor bands displaceable in opposite directions and defining oppositely arranged assembly work stations, and a substantially transversely displaceable elevation table provided at a discharge end of one of the two conveyor bands for transferring an assembly object from the one of the two conveyor bands to another of the two conveyor bands, with the elevation table including an element for rotating the assembly object during a linear displacement thereof from the one conveyor band to the other conveyor band.

Abstract: A polyester film having excellent heat resistance and insulation property is produced by the inventive process which comprises: melt-extruding a polyester resin into a sheet, extending the sheet to shape it into a film and treating the film thermally to heat-set, wherein the polyester resin has an intrinsic viscosity of 0.7 to 0.75 dl/g and other portions which satisfy formula (1) and the thermal treatment is carried out so that formula (2) is satisfied:[COOH]/[IV]<50 (1)1.0<S/D<1.2 (2)wherein:[COOH] represents the content (meq/10.sup.6) of terminal carboxyl groups in the polyester resin;[IV] represents the intrinsic viscosity (dl/g) of the polyester resin;S represents the X-ray crystal size (.ANG.) of the heat-set polyester film; andD represents the degree of crystallinity (%) of the heat-set polyester film.

Abstract: A method for adaptively selecting feature points according to motions of objects between the current frame and the previous frame, comprising the steps of: subtracting a pixel value of the previous frame from a pixel value of the current frame to thereby provide a differential pixel value; comparing the differential pixel value with a first threshold value TH1 and selecting processing regions having differential pixel values larger than the first threshold value TH1; detecting a motion vector for each pixel of the processing region in the previous frame; providing a pixel value of the current frame based on the motion vector for each pixel of the processing region in the previous frame; subtracting a pixel value of said each pixel of the processing region in the previous frame from the pixel value of the current frame to thereby provide an error pixel value; comparing the error pixel value with a second threshold value TH2 and selecting grid regions having error pixel values larger than the second threshold v

Abstract: A cylindrical astigmatic lens is used conventionally in detecting focussing errors in an optical pickup system. The inventive astigmatic lens is comprised of an orthorhombic base, made of a refractive material, provided with two parallel surfaces and a centerplane perpendicular thereto, and two sets of M pentahedrons, made of the same refractive material, placed on one of the two parallel surfaces thereof in such a way that each set of M pentahedrons is symmetric with respect to the centerplane. Each of the pentahedrons consists of three rectangular surfaces and two right angled triangular side surfaces, each of the triangular side surfaces being defined by a height H.sub.m, a base R.sub.m and an inclination. Since the height is the same in all of the triangular side surfaces in the M pentahedrons, the dimension of each pentahedron in the inventive astigmatic lens is defined by R.sub.m, R.sub.m being expressed as ##EQU1## wherein f represents the focus length and .lambda.

Abstract: A tool for insertion into a tool bit chuck in a manually operated tool used for chiseling and/or percussion drilling includes an axially extending chucking shank (1) with a locking 1groove (2) closed at its ends spaced apart in the axial direction. The chucking shank (1) has two rotary entrainment grooves (3) each with an entrainment side flank arranged so that the entrainment side flanks are located diametrically opposite one another. One of the rotary entrainment grooves (3) extends in the axial direction through a part of another locking groove (4) in such a way that the locking of the tool bit in a chuck is improved. To increase the transmission of torque, the chucking shank (1) has at least one additional axially extending groove (5). With this groove arrangement of the chucking shank (1) the tool bit is useful with a correspondingly shaped tool bit chuck as well as with different commercially available chucks.

Abstract: The invention is directed to a sound-producing reed for wind instruments which is made from fiber-reinforced plastic and is characterized in that the basic material of the plastic is stabilized by at least one unidirectional layer (27, 29) having fiber strands (31) extending in the longitudinal direction of the reed (7), some of these strands (33) having different material characteristics for the purpose of damping the vibrations of the reed (7).

Abstract: An array of M.times.N electrodisplacive actuators is prepared by:(1) forming a multilayered ceramic structure having M layers of a first conductive metallization and M+1 layers of an electrodisplacive material;(2) obtaining a composite ceramic wafer by slicing the multilayered ceramic structure in a direction normal to the layers of the first conductive metallization;(3) providing a plurality of regularly spaced horizontally directional trenches running parallel to each other wherein each of the trenches is located at an equidistance from two adjacent layers of the first conductive metallization;(4) depositing a second conductive metallization;(5) preparing N-1 regularly spaced vertically directional cuts on the composite ceramic wafer prepared using steps (3) and (4) to thereby obtain the array of M.times.N electrodisplacive actuators.

Abstract: The disclosed image sensing apparatus includes a first circuit for forming a first signal to control gains of various color signals included in the outputs of an image sensing device in accordance with the levels of the various color signals, a second circuit for forming a second signal to control the gains of the various color signals in accordance with a color temperature of an object to be photographed, and a gain control circuit for controlling and determining the gains of the various color signals by mixing the first and second signals formed by the first and second circuits, in which a high accurate white balance adjustment is effected and the variation of the color temperature of the object is followed.

Abstract: Inventive block copolymers are prepared, and their synthesis is described. These inventive block copolymers act as polymeric surfactants, especially as emulsifiers and surfactants, and as compounds having antistatic properties.

Abstract: A video cassette recorder operable in a plurality of picture search modes comprises a rotatable knob and a locking mechanism. The knob returns to an initial position thereof when an operational force applied thereto is released. Each of the picture search modes are selected in response to a respective angular displacement of the knob from the initial position. The locking mechanism has a locking arm urged to lock the knob while the video cassette recorder operates in one of the picture search modes.

Abstract: A golf club formed of a hollow golf shaft, a golf head having a through hole for receiving the hollow golf shaft, and an engaging member for securing the golf shaft in the golf head, and which is fixedly secured to an end surface of the golf shaft, and has a cross-sectional shape, which progressively changes from a non-circular to a circular, and a threaded hole formed at an end face remote from the golf shaft for receiving a bolt that fixes the engaging member with the golf shaft in the golf head.