Abstract: A novel 4,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R1 is CF.sub.2 X (X is Cl or Br), R.sub.2 is a C.sub.1 -C.sub.8 alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group, etc., R3 is a halogen atom, SH, NH.sub.2, etc., and R4 is a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.6 alkyl group, etc., is a herbicide having excellent activities.

Abstract: A shape memory alloy pipe coupling in the present invention for joining two pipes, the pipe coupling comprising a tube of a shape memory alloy, and a cover of stainless steel having a sufficient thickness and having high corrosion resistance for covering the tube. The shape memory alloy is enclosed by the cover of high corrosion-resistant stainless steel, by which high-temperature water can be prevented from making the shape memory alloy brittle and from corroding and damaging the shape memory alloy particularly through galvanic corrosion even in the case where such high-temperature water exists in the inside or outside of the pipes.

Abstract: An air-conditioning apparatus for vehicle use which can obtain sufficient heater capacity even in a cold-climate region, can utilize an existing heater unit, can combine a combustion type heater with a simple assembly operation, and can utilize exhaust heat of a motor for travel use of an automobile for heating a passenger compartment. The air-conditioning apparatus includes a refrigeration cycle connecting a refrigerant compressor, a refrigerant/water heat exchanger, a first pressure-reducer, and an exterior heat exchanger in an annular configuration. Further, a hot-water cycle connects the refrigerant/water heat exchanger, a hot-water heater core, an exhaust-heat cooler, and a water pump in an annular configuration and connects a combustion type heater in parallel with the refrigerant/water heat exchanger.

Abstract: A semiconductor device is disclosed which has an input terminal, an input protective device, a first stage circuit connected between the input terminal and an internal circuit, and a ground line system including a plurality of ground lines divided for noise suppression. Ground nodes of the protective circuit and the first stage circuit are connected with each other and to a common first ground line, while the ground nodes of the internal circuit are connected to second and third ground lines. The parasitic resistance formed between the ground nodes for the protective device and for the first stage circuit is reduced, thereby providing a surge voltage not higher than a clamp voltage of the protective device to protect the first stage circuit against electrostatic discharge-induced failure.

Abstract: Disclosed is a refrigerator oil composition for compressors using hydrofluorocarbons as a refrigerant, comprising (a) a base oil component of a dibasic acid diester and/or a carboxylate of a polyhydric alcohol, and optionally a mineral oil and/or an alkylbenzene, and (b) a phosphate and/or a phosphite, the content of which is from 5.0 to 90.0% by mass of a dibasic acid diester and/or a carboxylate of a polyhydric alcohol in the base oil component. The composition is used as a lubricating oil in refrigerators using, as a refrigerant, hydrofluorocarbons which are substitutes for halogen-containing refrigerants. Using the composition, formation of sludge in high temperature parts may be prevented. The composition is free from wear and has good compatibility with refrigerants, and it is used for a long period of time under high-temperature and high-pressure conditions.

Abstract: A substituted benzoyl derivative of the formula: ##STR1## ps wherein R is a lower alkyl group, or a phenyl group unsubstituted or substituted by a lower alkyl group, halogen atom or a lower alkoxy group;n is an integer of 2 0r 3;m is an integer of from 0 to 6, and when m is an integer of from 2 to 6, the plurality of R may be the same or different fron one another;l is an integer of 0, 1 or 2;X is a halogen atom, a nitro group, a cyano group, a lower alkyl group, a lower alkoxy group, or a lower haloalkyl group;Y is a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group unsubstituted or substituted by a halogen atom or a lower alkoxy group, a lower alkoxy group, or a lower alkoxy carbonyl group; andZ is a halogen atom, a nitro group, a cyano group, a trifluoromethyl group, a lower alkoxy group, a lower alkylthio group, a lower haloalkylthio group, a lower alkylsulfinyl group, a lower haloalkylsulfinyl group, a lower alkylsulfonyl group, or a lower haloalkylsulfonyl group.

Abstract: A substituted benzoyl derivative of the formula: ##STR1## wherein R is a lower alkyl group, or a phenyl group unsubstituted or substituted by a lower alkyl group, halogen atom or a lower alkoxy group;n is an integer of 2 or 3;m is an integer of from 0 to 6, and when m is an integer of from 2 to 6, the plurality of R may be the same or different from one another;l is an integer of 0, 1 or 2;X is a halogen atom, a nitro group, a cyano group, a lower alkyl group, a lower alkoxy group, or a lower haloalkyl group;Y is a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group unsubstituted or substituted by a halogen atom or a lower alkoxy group, a lower alkoxy group, or a lower alkoxy carbonyl group; andZ is a halogen atom, a nitro group, a cyano group, a trifluoromethyl group, a lower alkoxy group, a lower alkylthio group, a lower haloalkylthio group, a lower alkylsulfinyl group, a lower haloalkylsulfinyl group, a lower alkylsulfonyl group, or a lower haloalkylsulfonyl group.

Abstract: A workpiece machining system for simultaneously machining the opposite surfaces of workpieces such as discs for disc brakes includes at least two machining apparatus disposed on a workpiece transfer path between a first workpiece inlet conveyor line and a second workpiece outlet conveyor line, for machining respective workpieces while holding and rotating the workpieces in the same attitude as that in which they are conveyed along the first and second conveyor lines. The workpiece machining system also includes a transfer apparatus for transferring the workpieces from the first conveyor line through the machining apparatus to the second conveyor line while maintaining the workpieces in the same attitude.

Abstract: A compound roll for a metal rolling mill having both excellent resistance to a thermal shock crack and excellent wear resistance includes a core shaft made of low alloy steel and an outer layer consisting of high speed tool steel having a composition, by weight percent, essentially of 0.5 to 1.5% of C, 0.5 to 3.0% of Si, 1.5% or less of Mn, 2 to 7% of Cr, 1 to 5% of Mo, 0.5 to 2.0% of V, up to 2.0% of W and balance essentially Fe. The outer layer is formed on the outer surface of the core shaft by an electro-slag method. The outer layer is subjected to a water jet spray quenching and tempering at 300.degree. C. or higher, preferably 450.degree. C. to 550.degree. C.

Abstract: A pyrazole derivative of the formula I ##STR1## wherein A is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl; B is hydrogen, C.sub.1 -C.sub.3 alkyl, halogen, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.2 -C.sub.4 alkylthioalkyl or C.sub.2 -C.sub.4 alkoxycarbonyl; X is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, nitro, cyano, etc.; Y is --OR.sup.1 (wherein R.sup.1 is C.sub.3 -C.sub.8 cycloalkyl, etc), --O--L--O--R.sup.1 (wherein L is C.sub.1 -C.sub.6 alkylene which may be substituted by C.sub.1 -C.sub.3 alkyl), --O--L--OH, --O--L--O--L--O--R.sup.2 (wherein R.sup.2 is hydrogen, C.sub.1 -C.sub.6 alkyl group, etc.), --O--L--R.sup.3 (wherein R.sup.3 is phenyl which may be substituted by C.sub.1 -C.sub.3 alkyl, etc.), --O--M (wherein M is a 3- to 6-membered alicyclic group), --O--L--M, --O--L--NR.sup.4 R.sup.5 (wherein each of R.sup.4 and R.sup.5 is hydrogen or C.sub.1 -C.sub.6 alkyl, or R.sup.

Abstract: Disclosed are pyrimidine derivatives of the formula (I) and optical isomers thereof and a herbicide containing one or more of them as an active ingredient. ##STR1## where W is O or S; X is a lower alkyl group or a lower alkoxycarbonyl group; R is H, an optionally substituted lower alkyl group, an optionally substituted lower alkenyl group, an optionally substituted lower alkynyl group, an alkyali metal, an alkaline earth metal or an optionally substituted ammonium cation; R.sup.1 and R.sup.2 each are a halogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkoxy group; n is 3 to 5; m is 0 to 2; and is a single bond or a double bond.

Abstract: A fluid dispersal device has a fluid inlet port, a nozzle, a fluid jet passage and an outlet throat provided in a housing and arranged from the upstream side thereof in order. The sidewalls defining the fluid jet passage are composed of deflection walls, turn walls and branch walls arranged in order from the upstream side thereof. The deflection walls are parallel walls symmetric with respect to the center line of said nozzle, each of the turn walls continues from the downstream end of each of the deflection walls and is formed into a rectangular concave wall, the distance between the opposed rectangular concave walls is larger than that between the deflection walls. The branch walls continue from the downstream ends of the turn walls and project in opposite directions. The outlet throat is defined by the oppositely projecting branch walls. The fluid jet jetted from the nozzle is rightward of leftward deflected due to the interaction between the fluid jet and the deflection walls.

Abstract: A window washer comprises a washer liquid jet nozzle provided under a windshield glass of a vehicle so as to be directed thereto for periodically deflecting the jetting direction of the washer liquid horizontally by the fluidic self-oscillating operation thereof, a pump provided in a washer liquid passage connecting the jet nozzle to a washer liquid tank for pressurizing the washer liquid and sending the pressurized washer liquid, a driving motor for driving the pump and a motor control circuit for applying a square pulse shaped voltage to the motor. The motor control circuit periodically operates the pump so that the discharge pressure thereof periodically changes. Consequently, the jetting direction of the washer liquid jetted from the jet nozzle is periodically deflected horizontally and vertically.

Abstract: An air conditioning/heating apparatus for an automobile, comprising an assembly which is located on a steering column cover of the automobile, the heater assembly comprising an air duct, a heating element arranged in the air duct for heating the air passing through the heating element, and an air outlet opening from which the air is blown out.

Abstract: This invention is in a method of manufacturing a composite steel ingot wherein a consumable electrode is inserted into an empty space positioned concentrically with said steel ingot, and electric power is fed to said consumable electrode to effect electroslag remelting under a slag bath and then to solidify the molten metal, while taking out an electric current through a plurality of collecting electrodes which are electrically connected to said steel ingot placed on a surface plate, the improvement in that a flow path of the electric current passing from said consumable electrode to said collecting electrodes is moved in the circumferential direction of said steel ingot during said electroslag remelting.

Abstract: An air heating apparatus comprises a auxillary PTC heating element in an air duct lying parallel to the length of the duct to define first and second air passages separated by the heating element. The PTC heating element has apertures through which passes air to be heated; the two air passages thereby communicating with each other by means of the apertures through the heating element. First and second valves are located at upstream and downstream ends of the first and second air passages for selectably closing and opening the upstream and downstream ends of the first and second air passages, respectively.

Abstract: An intake air throttling system for a diesel engine comprising an air intake passage. The system includes a throttling valve mounted in the air intake passage so as to selectively throttle air flow through it. This throttling valve can be positioned to at least a first position in which it substantially fully closes the air intake passage, a second position in which it partly throttles the air intake passage to a substantial extent but does not fully close it, and a third position in which it does not throttle the air intake passage to any substantial extent. The throttling valve is controlled by a control system, which positions it to the first position when the engine is being stopped, which positions it to the second position when the engine is being idled, and which positions it to the third position when the engine is being operated in non idling load bearing operational condition.

Abstract: A fluid composition comprised of a fluorocarbon refrigerant, a hydrocarbon oil, and an alkylene oxide additive compound represented by the general formula (I): ##STR1## wherein R is hydrogen or a lower alkyl group and R' is an alkyl group, wherein R and R' contain 6 or more carbon atoms. The additive improves the thermal resistance of the oil in the presence of the refrigerant.

Abstract: An electric heating apparatus for heating the passenger compartment of a motor vehicle, such as an automobile, having an internal combustion engine driving an electric power generator for charging a battery supplying power to electrical equipment on the vehicle includes a control system permitting actuation of the apparatus only when the engine reaches a predetermined rotational speed above which the generator is able to generate power. The air-fuel mixture supplied to the engine is regulated by a rotational speed control means in accordance with a control signal produced by a control circuit responsive to a temperature sensor detecting that the engine temperature is below a predetermined level and a voltage sensor detecting that the voltage produced at the neutral terminal of the power generator is higher than a predetermined value to increase the rotational speed of the engine and thereby the power generated by the power generator.

Abstract: A pyrazole derivative of the formula I ##STR1## wherein A is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl; B is hydrogen, C.sub.1 -C.sub.3 alkyl, halogen, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.2 -C.sub.4 alkylthioalkyl or C.sub.2 -C.sub.4 alkoxycarbonyl; X is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, nitro, cyano, etc.; Y is --OR.sup.1 (wherein R.sup.1 is C.sub.3 -C.sub.8 cycloalkyl, etc), --O--L--O--R.sup.1 (wherein L is C.sub.1 -C.sub.6 alkylene which may be substituted by C.sub.1 -C.sub.3 alkyl), --O--L--OH, --O--L--O--L--O--R.sup.2 (wherein R.sup.2 is hydrogen, C.sub.1 -C.sub.6 alkyl group, etc.), --O--L--R.sup.3 (wherein R.sup.3 is phenyl which may be substituted by C.sub.1 -C.sub.3 alkyl, etc.), --O--M (wherein M is a 3- to 6-membered alicyclic group), --O--L--M, --O--L--NR.sup.4 R.sup.5 (wherein each of R.sup.4 and R.sup.5 is hydrogen or C.sub.1 -C.sub.6 alkyl, or R.sup.