Abstract: A rubber composition for the manufacture of automotive vehicle tires suitably as a bead filler therefor. The composition comprises specified proportions of carbonblack, a modified novolak phenolic resin, hexamethylenetetramine and a polymeric cardanol based on a starting rubber component such that the resulting rubber composition has a relatively low rigidity prior to vulcanization and a relatively high dynamic modulus after vulcanization.

Abstract: A device for driving optical units for scanning manuscript and provides that movement of the optical units during scanning is achieved by a first pulse motor exhibiting low-noise and high-torque characteristics within a motor speed range suitable for achieving a desired scanning travel speed. Return movement of the optical units is achieved by a second pulse motor exhibiting low-noise and high-torque characteristics within revolving a motor speed range suitable for achieving a higher desired return travel speed. Not only are the optical units moved in both directions, but also noise generated during such movement is reduced as much as possible.

Abstract: In a feed roller for mixing a developer and feeding it to a developing roller, a first mixing wing parallel to a rotating shaft is provided, a second spiral-shape mixing wing is diagonally provided in a manner to cross the first wing, and a spiral-shape groove for feeding a powder is formed on the one side located on the forward section with respect to rotating direction and being the powder scraping-up side of the both sides of said second mixing wing, along said second mixing wing, so as to enhance the feed performance, lateral-mixing performance and lateral-feed performance of the feed roller.

Abstract: An image reading device including a contact glass on which an original sheet is set, an exposure lamp for irradiating a face of the original sheet on the contact glass to scan it, a photosensitive element provided below the contact glass, a first mirror for reflecting the light reflected by the original sheet in parallel with an original scanning direction, a second mirror for reflecting the light from the first mirror, a third mirror for reflecting the light from the second mirror, a lens for imaging the light from the third mirror on the photosensitive element, a first moving frame mounting the exposure lamp and first mirror and movable in the original scanning direction, a second moving frame mounting the second and third mirrors and movable following the first moving frame, first and second motors for shifting the first and second moving frames, respectively, and a controller for controlling a driving velocity of the second motor to keep the optical length from the face of the original sheet to be exposed

Abstract: A motor with a decelerating apparatus includes a motor, a gear box connected to the motor, a pinion gear attached to an end of an output shaft of the motor, two or more decelerating gears engaging with the pinion gear, a rotation shaft connected to each of the decelerating gears as a unity, a bearing for supporting the rotation shaft of each of the decelerating gears provided in the gear box, and a mounting unit for fixing the gear box to a load, an output terminal of the rotation shaft of each of the decelerating gears being connected to a rotating load, the gear box comprising a bearing for supporting a rotation shaft of a first decelerating gear which engages with the pinion gear and a bearing for supporting a rotation shaft of a second decelerating gear which engages with the pinion gear and is different from the first decelerating gear in the number of teeth, the mounting unit connecting the output terminal of the rotation shaft of either of the first and second decelerating gears to the rotating load, a

Abstract: Disclosed is a sintered ceramic body with high strength, excellent refractoriness (heat-resistance) and machinability characterized by comprising a composition of CaO-SiO.sub.2 -MgO as surrounded by the points 1, 2, 3, 4, 5, 6 and 7 in FIG. 1.Also disclosed is a method of manufacturing a sintered ceramic body with excellent refractoriness (heat-resistance) and machinability characterized by preparing a raw material composition which consists of CaO, SiO.sub.2 and MgO as surrounded by the points, 1, 2, 3, 4, 5, 6 and 7 in FIG. 1 and then firing the composition at a temperature higher than 1200.degree. C. and up to 1350.degree. C.

Abstract: To accurately move a pickup 31 along a radial line of an optical disc in an optical disc apparatus for recording signals on both sides of the disc or reproducing the signals from the both sides, the pickup 31 is mounted on a support base 30 coupled to transport means and movable by being guided by a U-shaped guide assembly 5 which is fixedly and accurately positioned on a chassis carrying a disc drive motor. The guide assembly 5 comprises a pair of straight travel guide portions disposed in parallel to each other on opposite sides of the plane of rotation of the disc, and a circular-arc guide portion interconnecting the two guide portions. When reproducing the recorded signals, the pickup 31 accurately reciprocatingly moves on the disc radial line along the straight travel guide portions, and when the reproduction position is changed from one side of the disc to the other side, the pickup quickly moves upward or downward along the circular-arc guide portion.

Abstract: To accurately move a pickup 31 along a radial line of an optical disc in an optical disc apparatus for recording signals on both sides of the disc or reproducing the signals from the both sides, the pickup 31 is mounted on a support base 30 coupled to transport means and movable by being guided by a U-shaped guide assembly 5 which is fixedly and accurately positioned on a chassis carrying a disc drive motor. The guide assembly 5 comprises a pair of straight travel guide portions disposed in parallel to each other on opposite sides of the plane of rotation of the disc, and a circular-arc guide portion interconnecting the two guide portions. When reproducing the recorded signals, the pickup 31 accurately reciprocatingly moves on the disc radial line along the straight travel guide portions, and when the reproduction position is changed from one side of the disc to the other side, the pickup quickly moves upward or downward along the circular-arc guide portion.