Abstract: A pair of annular coil units for a stepping motor in which each of the coil units has three coil terminals and the ends of the lead wires connected thereto encapsulated by a synthetic resin thereby forming outwardly extending projections. Recesses are found between the projections so that the lead wires of one of the coil units can be laid out in the recesses between the terminals of the other coil unit.

Abstract: The rough ground rear surface 13b of a semiconductor wafer 11 is mirror-polished by localized irradiation with a focused laser beam 21. The wafer is moved relative to the beam, and the melt puddle formed by the beam thereafter recrystallizes at its trailing edge 24 to leave a mirror smooth rear surface 13c.

Abstract: A dynamic RAM with static column function comprising a predecoder for predecoding both the row address and the column address to output intermediate signals, a row decoder composed of NOR circuits for selecting one row in response to said intermediate signals, a column decoder composed of NAND circuits for selecting one column in response to said intermediate signals, and a logic inversion circuit for matching the logics for the intermediate signal between the row decoder and the column decoder.

Abstract: A drive apparatus for auxiliary equipment is disclosed which has a planetary cone reduction gear housed within a pulley which belt drives auxiliary equipment including a charging generator. An adjusting mechanism for adjusting the reduction ratio of the speed change gear is controlled by an electrical control circuit which is responsive to the rotational speed of the pulley. The voltage induced at the output terminal for one of the phases of a charging generator driven by the pulley is used as an electrical signal indicating the speed of the pulley.

Abstract: A curved escalator comprising a plurality of segment steps having step axles connected to an inner and an outer endless loop of step chains so that the steps circulate along the endless loops, and inner and outer sprocket wheels having different diameters for turning around the step axles along a conical surface in turn-around portions of the loop in engagement with the inner and outer endless chain loops, the bottom surfaces of the teeth being engageable with the step axles of the inner and outer sprocket wheels having sloped surfaces that are parallel to the axis of the step axles in the turn-around portion, and the teeth having the same pitch circle. Since the bottom surfaces of the teeth engaging the step axles have sloped surfaces that are parallel to the axis of the step axles in the turn-around portion, and since the pitch circles of the teeth are the same, the driving force is transmitted to the step axles and the step chain, and the steps are smoothly turned around to provide a better ride.

Abstract: A scroll-type apparatus having a main journal bearing which journals the drive shaft of the apparatus and is capable of pivoting by small angles with two degrees of freedom. The main journal bearing comprises three or more arcuate pads whose inner surfaces journal the drive shaft and which are pivotably supported by a stationary main bearing housing. In a preferred embodiment, each of the pads has a spherical protrusion and two rotation-preventing pins secured to its back surface. The protrusions contact the inner surface of the main bearing housing and pivotably support the pads, while the rotation-preventing pins are inserted into grooves formed on the inner surface of the main bearing housing.

Abstract: A boost signal generating circuit providing a higher boosted voltage in a shortened time period but with minimum power consumption. The boost signal generating circuit includes a boosting circuit including first and second MOS transistors, a capacitor and a charging device, a dynamic inverter circuit including third and fourth MOS transistors, a boost potential generator circuit, and a fifth MOS transistor having a source serving as a boost signal source. The fifth MOS transistor is turned on by a charging current supplied by the charging device to thus raise its source potential, while simultaneously the dynamic inverter circuit is actuated to actuate a boostrap circuit, thereby to raise its output voltage and hence reduce the on resistance of the fifth MOS transistor, resulting in a boosted signal at a potential near the output voltage of the boost potential generator circuit.

Abstract: In a wire electrode discharge machining method the breaking of the wire electrode is positively detected by detecting a discharge signal between the wire electrode and the workpiece over a predetermined unit period of time, and then monitoring the average value of high frequency components included in the spectrum of the discharge signal which are independent of the vibration of the wire electrode. When the average value of the high frequency components is found to exceed a predetermined level, countermeasures are taken to avoid the breaking of the wire electrode.

Abstract: A drive apparatus for engine auxiliary equipment comprises a drive pulley mounted on the crank shaft of an engine. The rotation of the axle of the drive pulley by the crank shaft is transmitted to the grooved body of the drive pulley by a planetary cone-type reduction gear. An output ring of the reduction gear can be moved along the surface of the planetary cones of the reduction gear by an hydraulic ram to change the reduction ratio. A pump driven by the rotation of the drive pulley pumps transmission oil sealed within the housing of the pulley to drive the hydraulic ram. The oil pressure applied to the ram is determined by the opening and closing of a solenoid valve, which is controlled by a controller in accordance with the operating conditions of the engine and the auxiliary equipment driven by the drive pulley. The reduction gear, the pump, the hydraulic ram, and the solenoid valve are housed within the drive pulley which is the same size as a conventional drive pulley.

Abstract: A process for producing a temperature and moisture sensitive element, which comprises a step of forming a first coating layer by applying a composition comprising a polymerized organo-silicon compound and an inorganic material onto a substrate, a step of forming a second coating layer apart from the first coating layer by applying the same composition as defined above onto the substrate, a step of heat-treating the first coating layer to form a moisture sensitive section, and a step of treating the second coating layer to form a temperature sensitive section by a treatment different from the heat treatment of the first coating layer.

Abstract: An optical signal reading device comprising a laser light source (101), an objective (107) slidable in the direction of the optical axis which is at right angles to the disc surface of a disc-like record carrier, a light detector (110) for receiving the reflected light coming from the disc surface via the objective, and a beam splitter (104) comprised of a single optical part disposed between the light source (101), light detector (110), and objective (107). The splitter has a pair of reflecting surfaces disposed approximately parallel to each other to ensure that the incident light from the light source (101) and the reflected light guided to the light detector (110) are parallel and opposite to each other.

Abstract: A scroll-type apparatus having an improved radial seal and a method for the assembly thereof is disclosed. The spiral wrap of a moving scroll and a stationary scroll are provided with gap adjusting means for providing a gap of a desired size between the top surface of the spiral wrap of each scroll and the top surface of the base plate of the opposing scroll. The gap adjustment means comprises a spiral-shaped elastic element which fits into a groove formed in the top surface of a spiral wrap or on top of a protrusion formed on the top surface of the spiral wrap, to form a nonpressurized seal. The elastic element is supported by the spiral wrap by friction, bonding, or solvent welding.

Abstract: A receiver for a digital communication apparatus which utilizes a time division multiplexed signal of a single or a plurality of pulse width modulation signal(s) and a synchronous signal or of a plurality of pulse width modulation signals, includes: a signal separation circuit including flip-flops and logic gates for separating each said pulse width modulation signal and said synchronous signal or separating each said pulse width modulation signal, from said time division multiplexed signal.

Abstract: According to the present invention, a method for forming a metal silicide electrode in contact with a doped region of a silicon substrate through a contact hole which is opened through an insulator film over said substrate, comprises the steps of: covering not only the contact hole area but also the insulator film with a metal film; injecting silicon ions into a predetermined area of the metal film covering the insulator portion adjacent the contact hole area; forming a continuous metal siliside film by annealing only on both the hole area and the ion-injected area; removing the metal film to leave the metal silicide film as an electrode which extends laterally to cover the hole area and the adjacent insulator portion. According to another aspect of the present invention, silicon ions are implanted into the area of the indulating film adjacent the contact hole area prior to a conformal deposition of metal. An annealing hep is carried out to form silicide.

Abstract: A gas insulated electrical apparatus comprising a hermetic sheath filled with an electrically insulating gas having a plurality of electrically conductive sheath sections including hermetically fastened flanged ends. A high voltage conductor is electrically insulatably supported within the sheath by an electrically insulating spacer which is hermetically and securely held at its outer periphery between the flanged ends of the sheath sections. An electrically conductive trap ring is inserted between at least one of the flanged ends of the sheath sections and the outer periphery of the spacer. The trap ring defines, between the trap ring and the spacer, a low electric field particle trap in which a low electric field is formed and in which electrically conductive particles can be trapped and retained.

Abstract: A semiconductor memory device comprises a data input switching circuit (20) connected between the output side of a write check bit generating circuit (2) and the input side of a check bit memory cell array (32), a data output switching circuit (30) connected to the input side of an address decoder (9), and an address switching circuit (10) connected to the output side of the address decoder (9). When a test mode is entered, the data input switching circuit (2), data output switching circuit (30) and address switching circuit (10) connect a data input signal line (l), data output signal line (m) and address signal line (n), respectively, to the check bit memory cell array (32), enabling the check bit memory cell array (32) to be accessed from the outside.

Abstract: A variable group delay equalizer comprises a delay portion and an amplitude correcting portion. In the delay portion, a group delay frequency response of an input signal is controlled. In the amplitude correcting portion, an amplitude distortion of the input signal caused in a delay portion can be corrected. A variable group delay equalizer with a wider variable range can be obtained by combining a fixed group delay equalizer.

Abstract: A thickness measuring apparatus of a sheet-like product, wherein the sheet to be measured is supported by being partly rounded around a shaft while an light shading plate is positioned so as to form a slit between the shaft and the shaft side edge of the light shading plate, is able to measure the sheet thickness directly by scanning the slit width with a light beam or indirectly by comparing the scanned results of the light beam of this slit with that of a reference slit provided at the light shading plate so that, for instance, the thickness of magnetic material coated on a magnetic tape can be measured continuously in the production line thereof.

Abstract: A differential actuator including a pair of unit actuators enclosed in a housing is provided. Rotational shafts of the unit actuators support bevel gears in opposed relation to each other. These bevel gears constitute a differential mechanism conjointly with two differential gears which are interconnected rotatably. Rotation of the differential gears around the axis of the bevel gears is taken out to the exterior as an output of the actuator.