摘要:
A magnetic levitation conveyor apparatus has levitation electromagnets, linear motors, and displacement sensors which are disposed outside of a tunnel, and a carriage of simple structure which is movable in the tunnel. The carriage is of canned structure for preventing gases from being generated. The carriage of canned structure allows the tunnel to have a reduced cross-sectional area and to be filled with a highly purified atmosphere such as of a high vacuum. The tunnel has substantially orthogonal branches at a branched point. In the branched point, the carriage can move, while being lifted out of contact with the tunnel partition, with a directional change from a main conveyor passage into a branched conveyor passage. The magnetic levitation conveyor apparatus is highly practical as it can control the carriage to be lifted and moved as described above.
摘要:
A workpiece such as a semiconductor wafer is positioned between a turntable and a top ring and polished by an abrasive cloth on the turntable while the top ring is being pressed against the turntable. The top ring has a retaining ring for preventing the workpiece from deviating from the lower surface of the top ring, and the retaining ring has an inside diameter larger than an outside diameter of the workpiece. The rotation of the turntable imparts a pressing force in a direction parallel to the upper surface of the turntable to the workpiece so that an outer periphery of the workpiece contacts an inner periphery of the retaining ring, and the rotation of the retaining ring imparts a rotational force to the workpiece so that the workpiece performs a planetary motion relative to the top ring in the retaining ring.
摘要:
A surveillance camera system includes a surveillance camera having pan/tilt capability, a display for displaying images picked-up by the surveillance camera thereon, a pointing device for indicating the movement of the surveillance camera in a visual field direction, and a remote-controlled monitoring device including a control unit for displaying the images on the display and for displaying a pointer thereon indicating the coordinate position of the pointing device so as to overlap with the images, and when the pointer is moved from a first point to a second point on the images, the control unit transmits a predetermined control signal from the remote-controlled monitoring device to the surveillance camera, and by the control signal, the control unit moves the surveillance camera in the moving direction of the pointer at a speed proportional to the length between the first point and the second point.
摘要:
A torque sensor 1 is provided with two shafts 3, 4 (input shaft 3 and output shaft 4) which constitute a shaft member 2, which is a torque detection object, an elastic member 5 which connects the shafts 3 and 4 coaxially, and a torsion angle of the elastic member 5 is detected as a torque which affects on the shaft member 2. The torque sensor 1 is provided with a hard magnetic member 6 which generates a magnetic flux therearound, a pair of first soft magnetic members 7, 8 which constitute a first magnetic circuit H1 together with the hard magnetic member 6 to change a reluctance by torsion of the elastic member 5, a pair of second soft magnetic members 9, 10 which constitute a second magnetic circuit H2 together with the hard magnetic member 6 to keep the reluctance constant, and a flux detection means 12 which detects a flux density of the second magnetic circuit H2 that varies in accordance with a torsion angle of the elastic member 5.
摘要:
A suction unit comprises reciprocating change-over suction device 1 including tubular body 1a having with passage 2 and two branch passages 2a and 2b bifurcated from passage 2 connected to a suction apparatus. Cylinder 1b is movable in body 1a and has ventilation passages 4 and 5 and actuation plates 8 and 9 fixed to ends of cylinder 1b. Chambers 6 and 7 are connected to the end portions of body 1a with closing members closing openings of the chambers. Elastic containers 10 and 11 are contained in chambers 6 and 7, openings of these containers being fixed to inner surfaces of closing members 14 and 15. Closed valves 12 and 13 are on chambers 6 and 7 and suction tubes 18a and 18b are connected to inflow passages 16a and 16b of members 14 and 15 and, at another end, are connected to common suction tube 18. Discharging tubes 19a and 19b are connected to outflow passages 17a and 17b of members 14 and 15 and, at another end, to storage container 20.
摘要:
The invention relates to a coated granular fertilizer having a film covering fertilizer granules. This film comprises a polyurethane resin prepared by a method comprising the steps of (a) reacting an aromatic polyisocyanate with a first polyol component (i.e., castor oil or a castor oil derivative), thereby to obtain a prepolymer having terminal isocyanate groups in the molecule; and (b) reacting the prepolymer with a second polyol component (i.e., castor oil or a castor oil derivative) and a third polyol component which is an amine having at least two hydroxyl groups in the molecule, thereby to cure the prepolymer and thus to prepare the polyurethane resin. The invention relates to another coated granular fertilizer having a film covering fertilizer granules. This film comprises a urethane resin and aqueous-fluid-absorbing particles having a particle diameter of from 1 to 200 &mgr;m. This urethane resin may be the above polyurethane resin. This coated granular fertilizer can be produced by a method comprising the steps of (a) applying an aromatic polyisocyanate, a polyol component (i.e., castor oil or a castor oil derivative), an amine, and the aqueous-fluid-absorbing particles, at the same time or separately in no special order, while the fertilizer granules are kept fluidized or rolled, thereby to form a precursory film on the fertilizer granules; and (b) curing the precursory film into the film. Each coated granular fertilizer is substantially superior in regulation of the release of plant nutrient elements therefrom.
摘要:
This invention relates to an air bag inflation gas generator and aims to surely retain the space between an igniter and an ignition agent of a gas generating agent pack and to surely caulk an end cap. This invention has a longitudinal cylindrical member having its both ends sealed by one end plate and the other end plate and a plurality of gas outlets formed in its outer periphery, a gas generating agent pack which is accommodated in the cylindrical member, accommodates a plurality of gas generating agents in the compiled state in the axial direction of a longitudinal cylindrical pack whose both ends are sealed with one end face and the other end face and has an ignition agent disposed close to the one end face, an igniter disposed at the one end plate of the cylindrical member, and an energizing member which is disposed between the other end plate of the cylindrical member and the other end face of the gas generating agent pack and energizes the gas generating agent pack toward the igniter side.
摘要:
The invention provides N-acyl-N-phenylmaleamic acid derivatives represented by the general formula I!, a method of producing the same, and a herbicide containing the same as the effective components, ##STR1## wherein X and Y each individually represent hydrogen atoms or halogen atoms, R.sup.1 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower alkoxyalkyl group or a lower alkoxycarbonylalkyl group, R.sup.2 represents a lower alkyl group, a halogenated lower alkyl group or a substituted or unsubstituted phenyl group, R.sup.3 represents a hydrogen atom or a lower alkyl group, and R.sup.4 represents a hydroxyl, a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group, a benzyloxy group or a lower alkoxycarbonylalkoxy group. This herbicide which is very useful can be widely applied to upland, paddy field, orchard, turf, forest, non-crop land, etc., and is not harmful to crops.
摘要:
An ultraviolet reactor for purifying a liquid, comprising a housing of circular or rectangular cross-sections, a multiplicity of ultraviolet lamps accommodated in the housing, an inlet and outlet for the liquid, which are provided at both ends, respectively, of the housing, and a plurality of mixing baffle plates provided inside the housing at a proper pitch along a longitudinal axis of the housing so that the liquid flows at right angles to the ultraviolet lamps.
摘要:
Ultrapure water of extremely high purity, i.e. a so-called ultra-ultrapure water is formed by the present system for purifying a pure water or ultrapure water, (1) the TOC component which was contained in pipes, etc. and which was subsequently dissolved in a pure water or ultrapure water to be treated, is decomposed and the pure water or ultrapure water is simultaneously sterilized, by the combined use of an oxidizing agent and ultraviolet irradiation, (2) the DO contained in the water to be treated and the DO derived from the addition of the oxidizing agent are decomposed into H.sub.2 O and simultaneous sterilization is effected, by the combined use of H.sub.2 gas and ultraviolet irradiation, (3) the remaining H.sub.2 gas is removed by a membrane degassing unit, and (4) the resulting water is subjected to an ion exchange treatment and an ultrafiltration treatment, in the above order, whereby the pure water or ultrapure water whose purity has been reduced by, for example, the dissolution of the impurities contained in pipes can be purified and converted to an ultrapure water of extremely high purity. The resulting ultrarapure water is particularly utilized as a rinsing water in the electronics industry where ultrahigh density integrated circuits (ULSI circuits) represented by 4 megabit dynamic memory are produced.