Abstract: Disclosed is a bearing unit which can be used in a drainage pump operated without supply of clean water or a hydraulic pump, which exhibits excellent wear resistance against water containing earth and sand and satisfactory assembling facility, and a method of manufacturing the bearing unit.The contact surface of a bearing made of stainless steel and/or that of a sleeve is applied with a sprayed coating, the main component of which is WC, and which contains one or more elements selected from a group consisting of nickel, chromium and cobalt as a binder material thereof, or a sprayed coating, the main component of which is Cr.sub.3 C.sub.2, and which contains NiCr as a binder material, after the sprayed coating has been formed, heating at from 300.degree. C. to 550.degree. C. is performed for one hour or longer so that hardness and wear resistance equivalent to those of a WC-12% sintered article is attained.

Abstract: The invention provides a control valve wherein a restrictor can be formed simply in an oil passage for introducing pressure oil on the downstream side of an orifice into a pressure chamber. The control valve is generally constructed such that pressure oil on the downstream side of the orifice is introduced into the pressure chamber through the oil path and a spool is moved by an action of a pressure difference on the opposite sides of the orifice whereas an excessive flow mount of oil escapes to a tank port. A groove is formed along an insertion hole of a connector or on a tubular portion of an orifice member which overlaps with the insertion hole. Such groove may otherwise be formed both along the insertion hole and on the tubular portion. When the orifice member is inserted into a connector, a restrictor which makes part of the oil path is formed from the groove simultaneously.

Abstract: A rotary damper for stabilization of a damping and temperature characteristic without impairing a temperature compensation function and facilitates a lubricating operation. The damper includes a bore for a damping force generating mechanism as a single communication flowpassage and a bore for a temperature compensation mechanism arranged in a line in a casing. The damping force generating mechanism is divided into two sets of damping elements with damping valves and return valves, arranged in series in the communication flowpassage with back surfaces of the damping valves and are oppositely positioned. A portion of the communication flowpassage between the damping valves is communicated with an oil chamber of a temperature compensation mechanism by an oil passage. A side panel is provided with a lubricating port toward the oil chamber of the temperature compensation mechanism.

Abstract: An ultrafine particle film which has excellent anti-staining properties, is effective for the prevention of electrostatic charge and reflection of visible light and can be applied to a large area at low cost, and an image display plate such as the one adapted to a Braun tube to which the ultrafine particle film is applied, and a process for producing the ultrafine particle film which comprises attaching a coating solution bath 22 to a surface of a Braun tube 21, filling the bath with a coating solution 23 containing antistatic SnO.sub.

Abstract: The present invention provides an improved hydrogen storage alloy of Ti--V--Ni system having a body-centered cubic structure. The alloy is of the general formula Ti.sub.x (V.sub.a Cr.sub.1-a).sub.1-x M.sub.b Ni.sub.c, wherein M represents at least one element of La and Ce or a mischmetal, and wherein 0.5.ltoreq.a.ltoreq.0.95, 0.01.ltoreq.b.ltoreq.0.1, 0.1.ltoreq.c.ltoreq.0.6, and 0.2.ltoreq.x.ltoreq.0.4; or Ti.sub.x V.sub.y M.sub.z Ni.sub.1-x-y-z, wherein M represents at least one element selected from the group consisting of Co, Fe, Cu, and Ag, and wherein 0.2.ltoreq.x.ltoreq.0.4, 0.3.ltoreq.y.ltoreq.0.7, 0.1.ltoreq.z.ltoreq.0.3, and 0.6.ltoreq.x+y+z.ltoreq.0.95.

Abstract: The present invention provides a cyclohexanediurea derivative, inclusive of its salt, represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and they each represent a straight-chain or branched alkyl group having at least 3 carbons, a cycloalkyl group, a cycloalkyl group having a bridge head, a furyl group, a furyl lower alkyl group or an aralkyl group, A.sub.1 and A.sub.2 are the same or different and they each represent a phenyl, pyridyl, quinolyl, isoquinolyl or indolyl group which may have substituents; a process for production thereof; an intermediate thereof; pharmaceutical use, a method for treatment and use thereof.

Abstract: An ultrafine particle film which is effective for the prevention of electrostatic charge and reflection of visible light and can be applied to a large area at low cost, an image display plate such as the one adapted to a Braun tube to which the ultrafine particle film is applied, and a process for producing the ultrafine particle film which comprises attaching a coating solution bath 22 to a surface of a Braun tube 21, filling the bath with a coating solution 23 containing the antistatic SnO.sub.2 ultrafine particles so that the surface of the Braun tube 21 is covered with the coating solution, and then exposing the coated Braun tube surface at a predetermined rate to form an electrically conductive film on the Braun tube surface, the above process being repeated by using a coating solution containing the visible light anti-reflection ultrafine particles to form a visible light anti-reflection film on the electrically conductive film.

Abstract: An ultrafine particle film which is effective for the prevention of an electrostatic charge and reflection and can be applied to a large area at a low cost, a cathode ray tube to which the ultrafine particle film is applied, and image display plate to which the ultrafine particles is applied, and a process for producing the ultrafine particle film which comprises attaching a coating solution bath to a Braun tube surface and the like, introducing a containing solution containing anti-reflection SiO.sub.2 ultrafine particles and antistatic SnO.sub.2 ultrafine particles, and elevating up or down on the Braun tube surface and the like at a constant rate.

Abstract: Disclosed is a bearing unit which can be used in a drainage pump operated without supply of clean water or a hydraulic pump, which exhibits excellent wear resistance against water containing earth and sand and satisfactory assembling facility, and a method of manufacturing the bearing unit.The contact surface of a bearing made of stainless steel and/or that of a sleeve is applied with a sprayed coating, the main component of which is WC, and which contains one or more elements selected from a group consisting of nickel, chromium and cobalt as a binder material thereof, or a sprayed coating, the main component of which is Cr.sub.3 C.sub.2, and which contains NiCr as a binder material, after the sprayed coating has been formed, heating at from 300.degree. C. to 550.degree. C. is performed for one hour or longer so that hardness and wear resistance equivalent to those of a WC-12% sintered article is attained.

Abstract: Disclosed is a bearing unit which can be used in a drainage pump operated without supply of clean water or a hydraulic pump, which exhibits excellent wear resistance against water containing earth and sand and satisfactory assembling facility, and a method of manufacturing the bearing unit.The contact surface of a bearing made of stainless steel and/or that of a sleeve is applied with a sprayed coating, the main component of which is WC, and which contains one or more elements selected from a group consisting of nickel, chromium and cobalt as a binder material thereof, or a sprayed coating, the main component of which is Cr.sub.3 C.sub.2, and which contains NiCr as a binder material, after the sprayed coating has been formed, heating at from 300.degree. C. to 550.degree. C. is performed for one hour or longer so that hardness and wear resistance equivalent to those of a WC - 12% sintered article is attained.

Abstract: A screw-type rotary fluid machine such as a compressor or a vacuum pump has male and female rotors which rotate within a casing, with or without mutual contact. At least one of the male and female rotors being surface-treated to have a treated surface structure. The treated surface structure is a multi-layered structures composed of a plurality of layers including a non-electrolytic Ni plating layer and at least one covering layer of organic resin. The organic resin may be one or more kinds selected from a group of engineering plastics, so as to improve mechanical strength.

Abstract: A hermetic compressor system includes a compressor and an electric drive resiliently supported in a closed housing. A metallic cylinder head is secured to the compressor and defines an insertion hole. The cylinder head has a suction chamber, which communicates with the insertion hole, and a discharge chamber integrally formed with and adjacent to the suction chamber. A suction muffler made of a synthetic resin or equivalent material of low thermal conductivity has a communicating duct extending through the insertion hole and partially disposed within the suction chamber. An opening is formed in the end of the communicating duct disposed within the suction chamber in a position facing a suction port leading a refrigerant gas into the compressor.

Abstract: A magnetic disk unit comprising a one-piece carriage structure having a small thermal off-tracking amount, with the carriage structure including a rotary shaft; guide arms integrally supported on a guide-arm retainer at their proximal ends and extending independently and parallely; bearing retainers formed on both ends of the guide-arm retainer; and bearings fixed on the bearing retainers rotatably connecting the guide-arm retainer to the rotary shaft. A center line in a direction of thickness of the outermost guide arm is located outside of that of the bearing in a direction of height thereof, and a concave portion is continuously formed on the bearing retainer. Thermal coefficients of expansion of the guide arms and the guide-arm retainer are substantially equal, with the carriage structure being fashioned of an alloy mainly containing Al and Si, eutectic crystal Si particles in the guide arm and/or the guide-arm retainer. The average value of the longest eutectic crystal Si particles therein is 1.6 .mu.

Abstract: A method treating a surface of rotors in a screw-type rotary fluid machine, with the method comprising the steps of: conducting a non-electrolytic Ni plating on the surface of each rotor so as to form a first layer of non-electrolytic Ni plating layer; heating the rotor having the first layer at a temperature not lower than 500.degree. C.; and forming, at least, a second layer of an organic resin so as to cover the first layer.

Abstract: A heat transfer member has a heat transfer unit mounted on a mounting sheet. The heat transfer unit comprises a plurality of layers of wire mesh laminated and bonded together and to the mounting sheet. The spaces between the wires of the mesh layers of the heat transfer unit permit liquid to pass through the heat transfer unit so as to conduct heat. A semiconductor element (IC chip) is mounted on the mounting sheet, and to a base. The resulting assembly is immersed in a liquid. Preferably, the planes of the mesh layers are generally perpendicular to the mounting sheet and the semiconductor element and the material of the mounting sheet chosen to have a thermal expansion coefficient between that of the semiconductor element and the heat transfer unit to reduce thermal stresses. The wires of the mesh layers are preferably of copper as this is inexpensive and provides satisfactory heat conduction.

Abstract: A control system for a vehicle engine coupled with an automatic transmission, which comprises a controller operative to control a controllable subject, such as ignition timing, in the vehicle engine, in accordance with a controlled variable determined for the controllable subject, for varying an engine output of the vehicle engine in response to an operating condition of the vehicle engine and further for reducing the engine output so as to suppress torque shock resulting from a speed change operation carried out in the automatic transmission, a controlled variable setting device for determining the controlled variable in accordance with the operating condition of the vehicle engine and an operating condition of the automatic transmission, and a controlled variable revising device for varying the controlled variable so as to restrict variation in the controllable subject when the speed change operation is carried out in the automatic transmission under a condition in which the controllable subject is controll

Abstract: A magnet pump has a magnet coupling for magnetically coupling an inner ring yoke and an outer ring yoke so as to magnetically transmit a torque from driving part to driven part of the pump to rotate the driven part. The magnet pump comprises magnetized magnet pieces bonded to the outer peripheral surface of the inner ring yoke and magnetized magnet pieces bonded to the inner peripheral surface of the outer ring yoke; non-magnetic cylindrical covers covering the surface of the inner ring yoke carrying the magnet pieces and the surface of the outer ring yoke carrying the magnet pieces, respectively; and mold resin parts filling the gap between the surface of the inner ring yoke and the associated non-magnetic cylindrical cover and the gap between the surface of the outer yoke ring and the associated non-magnetic cylindrical cover.

Abstract: Flexible cooling paths are connected to semiconductor elements which are heated members. A cooling apparatus comprises cooling blocks connected to cooling blocks, coolant flow paths through which the coolant flows, coolant branching mechanisms provided in the coolant flow paths and connecting mechanism for connecting the branching mechanism and the cooling blocks through O-rings. A part of coolant flowing through the cooling flow paths is introduced into the cooling blocks for the respective heated chips in order.

Abstract: In a method for forming a cast article by slip casting through casting of a slip of powders of ceramics, etc. as disporsed in a solvent such as water, etc. into a solvent-absorbable, porous casting mold of gypsum, etc., the casting mold as made is heated to considerably lower the strength of the casting mold in a shape-maintainable range, the slip is cast into the cavity of the casting mold and after solidification of the slip into a green body the casting mold is removed to obtain a defect-free green body. The casting mold can be removed with much ease.

Abstract: In a sealed structure consisting of ceramic members opposing each other and a frame coupled to the ceramic members and defining an He-tight chamber with the ceramic members, the melting point of a joint member for bonding one of the ceramic members to the frame is lower than the melting point of another joint member for bonding the other of the ceramic members to the frame so that rebonding can be made.