Abstract: A dynamic balancing device for a press having a crankshaft, a connecting rod mounted on an eccentric portion of the crankshaft and connected to a slide at its free end. The balancing device has links mounted on the eccentric portion of the crankshaft and extending in the direction opposite the direction in which the connecting rod extends, a pair of balancing weights provided on opposite sides of the crankshaft and vertically movable; and a pair of levers having their one ends pivotally attached to the upper ends of corresponding balancing weights and having the other ends of corresponding balancing weights and having the other ends overlapped and pivotally connected with the links, the levers being pivoted on the press at their respective mid-portions.

Abstract: A dynamic balancing device for a press is provided for balancing the inertia forces generated by the reciprocating parts of the press using balancing weights. A connecting rod is mounted around the crank of the drive shaft and has one end pivotally connected to the slide and the other end pivotally connected to a link. The link is connected to a pair of levers extending in opposite directions. The levers are used to move a respective pair of balancing weights 17 in opposite directions to the direction of movement of the reciprocating members of the press. The balancing weights are guided by guide pins 18 received in bores extending through the balancing weights.

Abstract: A slide guide for a press comprises a pair of sliding surfaces for slide side and frame side arranged at four corners at the left and right sides as well as the front and rear sides of the press slide to maintain the set clearance constant and each slide's side sliding surface is provided with acclivities, parallel faces and declivities alternately in the sliding directions which produces a wedge-shaped oil film thereon and the effect of the wedging action of the oil film is heightened by properly setting a wedge angle formed by the acclivities and declivities in accordance with the slide's ascending/descending speeds so that the oil film generates a separating force to wedge off the slide side and frame side sliding surfaces, thereby enabling the slide's high speed motions to remain highly accurate without producing oil film breakdown even when the clearance is set minimal.

Abstract: A balancing device for a press of the type in which a slide moves up and down with respect to a bolster, the balancing device having an upward urging device mounted on the press and engageable with the slide to urge the slide upwardly when the die height clearance is adjusted and to be disengageable from the slide when the slide is moving up and down during operation of the press.

Abstract: A press having a slide adjusting device and which has a press crown, a crank shaft mounted on the crown and having an eccentric portion, a connecting rod mounted on the eccentric portion, a slide adjusting screw connected to the connecting rod, a worm wheel mounted on the outer periphery of the slide adjusting screw for rotating the slide adjusting screw with the worm wheel and for relative axial sliding movement of the slide adjusting screw and the worm wheel, a crown engaging the worm wheel for holding the worm wheel fixed against movement in the vertical direction relative to the press crown, whereby the slide adjusting screw is moved in the rotational direction by rotation of the worm wheel and is slidable in the vertical direction in the worm wheel.

Abstract: A control system for a semiconductor substrate process line comprises a process line having processing units for processing a semiconductor wafer in accordance with preset data, a plurality of cassettes each for storing a plurality of semiconductor wafers and having an identification member on a surface thereof consisting of a plurality of projections arranged in a row, a non-contact type number reader provided at an entrance side of the processing unit for reading the cassette number designated by the identification member and generating a signal corresponding to the number, and a control unit in which processing conditions are input corresponding to the semiconductor wafers stored in the cassettes and which identifies the signal from the reader and controls the processing unit under processing conditions corresponding to the identified number.

Abstract: During press operation, the die gap is adjusted by adjustment members extending between the crown and the bed of the press, which adjustment members act in direction to move the two parts apart.The adjustment members have a hydraulic fluid piston-cylinder means therein, and the distance between the dies is adjusted by expanding or contracting the adjustment members in the axial direction by supplying hydraulic fluid pressure thereto, thereby improving the operation of the press, and making it quite easy to deal with die gap variation during operation of the press and to restore the press to normal operation after a so-called "sticking" condition occurs.

Abstract: In a balance device for a mechanical press, a press body or frame rotatably mounts a crankshaft. A slide is supported from the crankshaft by connecting rods so that it reciprocates transverse to the axial direction of the crankshaft as the shaft is rotated. To avoid the development of an oscillating effect in the press body during operation a first gear is positioned on the crankshaft. Balancing gears are supported on the press body in meshed engagement with the first gear. Each of the first gear and the balancing gears has a balance weight for counteracting the tendency of the slide to cause oscillation and vibrations in the press body.

Abstract: A coil-winding machine is disclosed in which an annular member on which wire is to be wound is inserted into a traveling ring and a shuttle and held in position. A predetermined length of wire is stored in the shuttle. The trialing end of the wire stored in the shuttle is fixed on the annular member. The shuttle is rotated in the direction of storage, while at the same time rotating the traveling ring in the direction of storage by the tension of the wire or a turning effort transmitted from a driving system, thus winding the wire on the annular member in the direction of storage. After forming a crossover wire, the wire is fixed on the annular member. The traveling ring is rotated in the direction opposite to that of storage.

Abstract: A metallized plastic molding comprises a plastic substrate, a primer layer having a gel percentage of at least 80% and a swelling degree of 20% or less deposited on said substrate and a metallic film deposited on the primer layer. The metallized plastic molding is prepared by coating a plastic substrate with a primer forming material containing at least one compound having a molecular weight of 150 - 2000 and containing at least two polymerizable unsaturated groups in one molecule, curing the primer forming material so that it has a gel percentage of at least 80% and a swelling degree of 20% or less to form a primer layer and then depositing a metallic film layer by a dry type method on the primer layer.

Abstract: An acrylic resin composition containing a thermoplastic acrylic polymer in combination with a specific ethylenically unsaturated diacrylate such as diacrylate of hydroxypivalyl hydroxypivalate is found to be cured by irradiation of active rays in an aqueous medium in the presence of a photo-sensitizer to form a cured film with excellent properties. This composition is especially suitable for coating a plastic tile.

Abstract: Liquid developers for use in developing electrostatic latent image which contain at least one member selected from the following Group A and at least one member selected from the following Group B.Group A: Cumarone indene resin, rosin modified phenol resin, rosin modified maleic acid resin, rosin modified pentaerythritol resin, alkylphenol modified xylene resin, styrene-vinyltoluene copolymer, and resin acid calcium salt.Group B: Low molecular polyethylene, ethylene-ethylacrylate copolymer, ethylene-vinylacetate copolymer, low molecular polypropylene, chlorinated paraffin (degree of chlorination, 40 to 70%), polybutene resin, .beta.-pinene resin, polyterpene resin, and alkylphenol formaldehyde resin.

Abstract: A rotary switch of sliding contact type for use in a torque converter of an automotive vehicle comprises a base in the surface of which a plurality of stationary contact plates are molded, a cover plate for the base plate suitably secured to the latter with a space for movably enclosing a rotary contact arm between the cover plate and the base plate, and a rotatable shaft fixedly received in the hub of the rotary contact arm. The hub is rotatably held between edges of corresponding openings formed in the base plate and the cover plate, so that, upon rotation of the shaft, contacts of the rotary contact arm slide across the stationary contact plates and can be stopped at positions precisely corresponding to predetermined angles of rotation of the shaft.