Abstract: A flat belt transmission has two spaced flat pulleys and a flat belt reeved around the flat pulleys. Each pulley can have a plurality of crowns arranged in the width direction of the outer periphery thereof. The flat belt can be a plurality of belts with a narrow width, one for each of the crowns. The flat belt can be a single belt with a part extending in the longitudinal direction of the belt in its inner periphery. The flat belt can be used with the flat pulley of the above construction or a flat pulley having a single crown of its outer periphery. In addition, the plurality of crowns are formed on the outer periphery of the flat pulley so as to be spaced at the same distance from the center of rotation of the pulley, or the outer periphery of the flat pulley can be in the form of a circular arc to change height of the crowns.

Abstract: An optical system featuring a semiconductor laser for oscillating a beam which has, in a far field pattern, two lobes in the direction aligned with a pn junction interface of the semiconductor laser. The optical system is provided with a total reflection mirror for reflecting part of the beam in such a manner that one of the two lobes is separated as a result of the reflection of part of the beam from the other, and with a polarization beam splitter having a junction for synthesizing rays in such a manner that the lobes which have been separated by the total reflection mirror are superimposed. The apparatus is thus capable of forming a single beam spot at which the two lobes are superimposed.

Abstract: A method of bonding fibers to hydrogenated nitrile rubber which comprises:the first step of treating fibers with an activating agent selected from the group consisting of polyisocyanates, epoxy compounds and silane coupling agents;the second step of dipping the fibers into a resorcinol/formalin/latex solution;the third step of treating the fibers with an adhesive composition which comprises (a) 1-90% by weight of polymers, based on the composition, the polymers containing halogens in amounts of 25-70% by weight based on the polymers, and (b) 10-99% by weight of polyisocyanates, aromatic polynitroso compounds or polyepoxy compounds; andthe fourth step of placing the fibers in close contact with hydrogenated nitrile rubber and vulcanizing the rubber together with the fibers.The resultant composites have large strength and high resistance to fatigue from repeated flexure.

Abstract: In the accumulator fuel injection system according to the present invention, a leak passage is formed in an accumulator in which a fuel supply pressure from a fuel injection pump is temporarily stored, and a control valve adapted to be opened and closed by the energization of a solenoid so as to pen and close this leak passage is provided. In order to secure a predetermined fuel injection quantity, the pressure in the accumulator is reduced suddenly by an operation of the control valve to a level not higher than a needle valve closing pressure to shorten the fuel injection time and increase the pressure in the accumulator to a high level, whereby a fuel injection rate is increased. A pressure chamber having a relief valve therein is further provided in the portion of the leak passage which is on the downstream side of the control valve.

Abstract: The poor electrical conduction at an electrical switch contact caused by organopolysiloxane gas can be prevented by providing that a nitrogenous base gas be simultaneously present with the organopolysiloxane gas. Nitrogeneous base gases can be aliphatic amines or aromatic amines.

Abstract: A rack for processing a photosensitive material includes a roller transport mechanism composed of a plurality of transport rollers for transporting the photosensitive material to dip the photosensitive material in a processing solution contained in a processing tank. The plurality of transport rollers includes two pairs of generally opposed rollers, the two pairs being disposed adjacent to each other along a path of transport of the photosensitive material. The rollers of each pair of rollers between which the photosensitive material passes is spaced from each other by a distance greater than the thickness of the photosensitive material. A shutter mechanism is provided for covering the surface of the processing solution. The shutter mechanism is disposed between the two pairs of rollers.

Abstract: A semiconductor device having an air bridge wiring structure comprising a first layer of conductors disposed on a semiconductor substrate, a plurality of bridges posts disposed on widened portions of the first layer of conductors, and bridge plates disposed straddling a plurality of bridge posts, the widened portions of the first layer of conductors being disposed at positions which are not in straight lines but are shifted with respect to each other.

Abstract: An optical information recording and reproducing apparatus comprises, an optical head for recording and reproducing information on and from a card-shaped optical recording medium, first means for relatively reciprocally moving said optical head to said card-shaped optical recording medium, and control means for controlling a relative speed between said optical head and said optical recording medium, said control means keeping a constant relative speed between said optical head and said optical recording medium in a record area of said optical recording medium and changing the relative speed between said optical head and said optical recording medium and reversing the direction of the relative movement between said optical head and said optical recording medium in areas outside of the record area.

Abstract: The upper parts of the cylinder liners and the cylinder head are formed integral in one piece, and a water jacket is provided around the outer peripheries of the upper parts of the cylinder walls, with no water jacket provided to the cylinder body. This eliminates the use of the core for the water jacket in molding the cylinder body, which in turn reduces the engine weight, brings about a significant cost reduction and makes machining operations easy. Because the piston head is made of a heat insulating material and a water jacket is not provided to the cylinder body, the heat is prevented from flowing down to the cylinder liners. Furthermore, the cylinder liners are made of a ceramic material to improve an anti-galling characteristic during sliding motions at high temperatures. Also, since the water jacket is provided only to the cylinder head, the water jacket can be made simple and small in structure, reducing the cooling water flow resistance.

Abstract: Method and apparatus for recording information on a card-shaped optical information recording medium with a light beam and/or for reproducing information recorded on the medium. The apparatus includes a device for irradiating the medium with a light beam, a device for causing relative reciprocal movement between the medium and the light beam, and a device for terminating or displacing the light beam on the medium, after the lapse of a predetermined period of time from a moment when the relative speed of the medium and the light beam is reduced below a predetermined speed. The method includes the steps carried out by the apparatus.

Abstract: A film processing device contains a film feed unit, a film developing unit, a film drying unit, and a film winding unit. The drying unit and the winding unit are integrally structured, and the feed unit, developing unit, and the drying/winding unit are independently arranged in the casing and are independently detachable. The film processing device can be further provided with an upper cover having processing rollers attached thereto, which is vertically movable with respect to the casing so that the rollers are dipped into the developing and washing liquids when the upper cover is lowered.

Abstract: A semiconductor integrated circuit device includes a plurality of transistors each comprising a source region, a drain region, and a gate region, the source regions of the transistors are commonly connected to each other via via-holes produced through the semiconductor substrate at positions corresponding to the source regions, the gate regions of the transistors are commonly connected to each other on the semiconductor substrate, and the via-holes of the semiconductor substrate are arranged dispersively in two-dimensional direction in the surface of the semiconductor substrate.

Abstract: An FRP pipe having threaded ends at both ends, such as casing, tubing, and coupling, is disclosed, which is characterized in that metal plating is formed on the surface of at least one of the threaded ends.

Abstract: A V belt for high load transmitting having at least one endless load carrier and a plurality of blocks engaged with the load carrier in the lengthwise direction of belt. The center of gravity of the block is situated near the tensile members of the load carrier. The block, in the straight running state, is so supported that it is substantially perpendicular to the load carrier. Also, the block has the surface of arcuate shape in cross section at least at a part of its side surface.

Abstract: A V-ribbed belt having a plurality of ribs on a belt base along the lengthwise direction of belt and a method of manufacturing such V-ribbed belt. The belt according to the present invention is used for driving of driers, auxiliary machines for motor cars, washing machines, etc. ribs of the belt are formed solely of rubber and are provided with a surface layer comprising a non-woven fabric at the outer surface thereof. The thickness and the weight per unit area of the non-woven fabric are in the range of between 0.01 and 0.3 mm and between 3 and 100 g/m.sup.2 respectively. The non-woven fabric can contain a coefficient of friction reducing agent, where necessary.

Abstract: In an information recording medium according to the present invention, marks for discriminating between information tracks and a mark indicative of the information concerning spacing from a position at which each of the marks is provided to the recording starting position are provided in an information block, and a plurality of such information blocks are continuously provided in the other area of the information tracks than the recording area. The specification also discloses an information recording and reproducing method and apparatus utilizing such a plurality of information blocks.

Abstract: The heat-insulating piston structure according to the present invention is formed by fixing a piston head, which consists of a material the coefficient of thermal expansion of which is substantially equal to that of a ceramic material, to a piston skirt, and setting a thin, flat plate portion of a ceramic material on the whole of the flat surface of the piston head which is on the side of a combustion chamber via a heat-insulating member. Accordingly, the piston can be formed so that it has excellent heat-insulating characteristics and high thermal resistance, deformation resistance and corrosion resistance. Especially, the thin plate portion of a ceramic material, which is exposed to a combustion gas, can be formed to the smallest possible thickness to reduce the thermal capacity thereof greatly. Therefore, the temperature of the wall of the combustion chamber varies easily with that of the combustion gas (in other words, the amplitude of the temperature of this wall becomes large).

Abstract: A laminated piezoelectric transducer, comprising a laminate of a plurality of piezoelectric plates with paste electrodes inserted therebetween and bonding the plates together. Rows of metal extrusions are made by electroless plating onto the paste electrodes on the peripheral outer surface of the laminate. Each row of the metal extrusions is formed onto and electrically connected to alternate paste electrodes, so that by electrically connecting each row of the metal extrusions, the laminate of the piezoelectric plates is electrically connected in parallel. This laminated piezoelectric transducer allows the formation of the paste electrodes on the entire or at least substantially the entire main surfaces of the piezoelectric plates, and eliminates the need for the usual metal plate electrodes inserted between the piezoelectric plates.

Abstract: The heat-insulating engine structure according to the invention comprises fitting a ceramic head liner for which a cylinder liner top and a head lower surface portion are unified structurally in a cylinder head, coating an outer surface of the cylinder liner top of the head liner with a heat insulating laminate with a metallic sheet and a heat insulating material with potassium titanate as a principal component wound spirally by turns with a compressive force exerted thereon, thus enhancing strength or pressure resistance, forming a wall of the head liner as thin as possible to minimize a thermal capacity of the head liner, thereby enhancing suction efficiency and cycle efficiency. Further, heat insulation efficiency is enhanced all the more by disposing the heat insulating laminate having air layers between the head liner and the cylinder head.

Abstract: An information memory apparatus includes: an endless belt which is driven forward and in reverse by a motor and reciprocates a recording medium such as an optical card; an optical head for reading out information from the recording medium which is being moved by the endless belt; a memory for temporarily storing the information read out by the optical head; a transfer apparatus for transferring the information read out of the memory to the outside; and a control circuit for changing the positions at which the information stored in the memory is read in accordance with the reading of the information upon the forward and returning operation of the recording medium. The control circuit also changes the reading directions of the information from the memory in accordance with the forward and returning operations of the recording medium. With this apparatus, the information reading efficiency is improved and the information is efficiently transferred by a simple constitution, while reducing the number of memories.