Abstract: A rolling bearing with seal plate for transmission comprising: an inner race that has an inner ring raceway around its outer peripheral surface in the middle in the axial direction; an outer race that has an outer ring raceway around its inner peripheral surface in the middle in the axial direction; a plurality of rolling bodies that are located between the inner ring raceway and the outer ring raceway such that they rotate freely; and a seal plate that is made of synthetic resin and has one of the peripheral edges attached to part of one of the inner race and outer race, and the other of the peripheral edges made to come in sliding contact with a cylindrical surface of the other of the inner race and outer race therearound in parallel to the central axis thereof.

Abstract: A seal for sealing between the inner ring and outer ring of the clutch release bearing comprising a labyrinth seal section extending from one of the inner ring and outer ring and kept in a non-contact state with reference to the other ring, and a contact seal section comprising a lip portion and provided on the internal side of the labyrinth seal and kept in a contact state with reference to the other ring, and the lip portion acting to obstruct semi-fluidized foreign matter which enters through the labyrinth seal.

Abstract: A sleeve 2 is made from a composition of polyamnide resin and denatured, high-density polyethylene, wherein the polyethylene is denatured with unsaturated dicenboxylic acid or unsaturated dicarboxylic acid anhydride or both to have a molecular weight of 50,000 to 400,000 in average.

Abstract: A rolling bearing with seal plate for transmission comprising: an inner race that has an inner ring raceway around its outer peripheral surface in the middle in the axial direction; an outer race that has an outer ring raceway around its inner peripheral surface in the middle in the axial direction; a plurality of rolling bodies that are located between the inner ring raceway and the outer ring raceway such that they rotate freely; and a seal plate that is made of synthetic resin and has one of the peripheral edges attached to part of one of the inner race and outer race, and the other of the peripheral edges made to come in sliding contact with a cylindrical surface of the other of the inner race and outer race therearound in parallel to the central axis thereof.

Abstract: A seal for sealing between the inner ring and outer ring of the clutch release bearing comprising a labyrinth seal section extending from one of the inner ring and outer ring and kept in a non-contact state with reference to the other ring, and a contact seal section comprising a lip portion and provided on the internal side of the labyrinth seal and kept in a contact state with reference to the other ring, and the lip portion acting to obstruct semi-fluidized foreign matter which enters through the labyrinth seal.

Abstract: According to the device of the invention, measured values (V.sub.0 ', V') of an output V.sub.A of an opening sensor at two adjusted levels of throttle openings in both idling state and fast idling state and their ideal values (V.sub.0, V) are used. The value V.sub.0 ' in the idling state is subtracted from the output V.sub.A in a driving condition, (V.sub.A -V.sub.0 '), which is then multiplied by the ratio of ideal variation characteristics of the sensor output for a change of the throttle opening to those in the throttle valve product used, {(V-V.sub.0)/(V'-V.sub.0 ')}, to produce a correction signal T.sub.A matching the individual difference. Further, a reference value subtracted from the output V.sub.A in a driving condition is set as T.sub.AMIN which varies with the output V.sub.A, taking the difference of variation characteristics of the sensor output from ideal characteristics into account.

Abstract: A method and apparatus to minimize contamination in a furnace comprising placing a case to accommodate material to be heat treated in the furnace, forming a gas flow into the case from inside of the furnace, heating the work maintained in the case to evaporate organic matters contained in the work, evacuating the vapor containing the organic matter to the outside of the furnace through an internal evacuation duct provided through the furnace, liquefying the vapor containing the organic matters under reduced pressure by introducing same into a liquefying trap and thereafter continuously collecting these liquefied organic matters.

Abstract: A variable level converter comprising a first variable level converting unit, a second variable level converting unit and an amplifying transistor connected therebetween. Each of the first and second variable level converting units comprises an inverted L-type variable attenuator which includes a variable impedance element. Each variable impedance element is controlled by the same level control signal and has the same electric characteristics.

Abstract: Disclosed is a system for supervising the level of input applied to a level regulator using a pilot signal. According to the invention, an input level supervisory circuit is provided which utilizes a level adjusting variable element of the level regulator, or employs a particular variable element arranged to be driven by means of the control voltage for said level adjusting variable element simultaneously with the latter element and having characteristics equal thereto, and which has a transmission ratio in a reciprocal or inverse relationship to the alternating current transmission ratio of a main signal alternating current transmission line of the level regulator. The input level supervisory circuit is supplied with an input voltage or current from a direct current constant-voltage power source or a direct current constant-current power source to generate an output voltage by means of which supervision of the level of the pilot signal input to the level regulator is performed.

Abstract: A variable resistor comprises an insulation plate, conductors of a cermet material formed on the insulation plate, a resistor of a cermet material formed on the insulation plate in contact with the conductors, a slider member adapted to move slidably on the resistor and portions of the conductors, and coatings of a cermet resistance material formed on the conductors at the portions which are slidably wiped by the slider member.