Abstract: This tire electrical resistance measurement device is provided with an inner circumferential-side probe and an outer circumferential-side probe. The inner circumferential-side probe is disposed on the inner circumferential side of a tire and is capable of coming into contact with the inner circumference of the tire. The outer circumferential-side probe is disposed on the outer circumferential side of the tire and is capable of coming into contact with a tread portion of the tire by moving relative to the tire in a radial direction of the tire. The outer circumferential-side probe extends in the width direction of the tire and is deformable in the radial direction so as to follow a protrusion-recess shape of the tread portion in the width direction. The outer circumferential-side probe is electrically conductive at least at a contact surface that comes into contact with the tread portion.

Abstract: A master disk which simulates a tire and is used at the time of confirmation or correction of measurement accuracy of a geometry measuring device for measuring the surface shape of a tire, of a tire testing machine, includes: a simulated tire section simulating a tire; a lower tubular section having a cylindrical shape, in which the tip side thereof is connected to the lower end side of the simulated tire section so as to be coaxial with the simulated tire section and a guide surface inclined in a tapered shape so as to have a larger diameter toward the base end side is formed on the base end side of an inner peripheral surface; and a neck section and a flange section which are provided on the upper end side of the simulated tire section and detachably engaged with test rim moving and exchanging means of a tire holding device of the tire testing machine.

Abstract: A master disk which simulates a tire and is used at the time of confirmation or correction of measurement accuracy of a geometry measuring device for measuring the surface shape of a tire, of a tire testing machine, includes: a simulated tire section simulating a tire; a lower tubular section having a cylindrical shape, in which the tip side thereof is connected to the lower end side of the simulated tire section so as to be coaxial with the simulated tire section and a guide surface inclined in a tapered shape so as to have a larger diameter toward the base end side is formed on the base end side of an inner peripheral surface; and a neck section and a flange section which are provided on the upper end side of the simulated tire section and detachably engaged with test rim moving and exchanging means of a tire holding device of the tire testing machine.

Abstract: A master disk which simulates a tire and is used at the time of confirmation or correction of measurement accuracy of a geometry measuring device for measuring the surface shape of a tire, of a tire testing machine, includes: a simulated tire section simulating a tire; a lower tubular section having a cylindrical shape, in which the tip side thereof is connected to the lower end side of the simulated tire section so as to be coaxial with the simulated tire section and a guide surface inclined in a tapered shape so as to have a larger diameter toward the base end side is formed on the base end side of an inner peripheral surface; and a neck section and a flange section which are provided on the upper end side of the simulated tire section and detachably engaged with test rim moving and exchanging means of a tire holding device of the tire testing machine.

Abstract: Provided is a pressure vessel having a weld portion structure of a plate material in which a plate receiving a pressure or a load is attached by welding to a wall surface member such as a shell or a head. In the pressure vessel, a stress concentration on the weld portion structure is alleviated and an increase in welding amount and plate thickness of the wall surface member are suppressed. The pressure vessel includes a weld structure portion in which an end of a bolster plate (22) attached so as to partition an inside of a container body and receiving a pressure or a load is attached by welding to a wall surface member (30) of the container body, the weld structure portion having at least two sections including a weld portion (40), i.e., shape displacement points of the weld portion (40) and a stepped portion (50).

Abstract: Provided is a pressure vessel having a weld portion structure of a plate material in which a plate receiving a pressure or a load is attached by welding to a wall surface member such as a shell or a head. In the pressure vessel, a stress concentration on the weld portion structure is alleviated and an increase in welding amount and plate thickness of the wall surface member are suppressed. The pressure vessel includes a weld structure portion in which an end of a bolster plate (22) attached so as to partition an inside of a container body and receiving a pressure or a load is attached by welding to a wall surface member (30) of the container body, the weld structure portion having at least two sections including a weld portion (40), i.e., shape displacement points of the weld portion (40) and a stepped portion (50).

Abstract: A dust seal structure of an internal mixer including a casing having a mixing chamber defined therein, and a rotor rotating in the mixing chamber for kneading a material, which is charged into the mixing chamber to be kneaded there, comprises a ring-shaped cylinder fitted to a rotor shaft of the rotor and mounted on a peripheral edge of an opening portion of the casing through which the rotor shaft passes, the cylinder being located at the peripheral edge of the opening portion of the casing, and being adapted to urge a ring-shaped sealing member fitted on the rotor shaft in a direction of the rotor shaft to inhibit leakage of the kneading material from the mixing chamber.

Abstract: The present invention relates to toner comprising: toner particles containing a binder resin and a colorant; and organic fine particles admixed with the toner particles, the organic fine particles having a volume average particle size of 0.1 to 20 &mgr;m and containing alkyl carboxylic acid having a number average molecular weight of 300 to 1000. The organic fine particles may be specified by an average number of carbon atoms of 20 to 70.

Abstract: An air conditioning system includes one outdoor unit and at least one indoor unit connected to each other. The outdoor unit has a variable capacity compressor, a four-way valve, an outdoor heat exchanger, and a refrigerant heater, while the indoor unit has an indoor heat exchanger. A saturation temperature calculator computes the saturation temperature at the refrigerant heater outlet pressure. A refrigerant heater outlet temperature detection circuit detects the refrigerant temperature near the refrigerant heater outlet. A superheating calculator calculates refrigerant superheating at the refrigerant heater outlet based on values supplied thereto from the refrigerant heater outlet temperature detection circuit and saturation temperature calculator. A compressor frequency control circuit then adjusts the compressor frequency so that the calculated refrigerant superheating is maintained at a specific level.

Abstract: A multi-room air conditioning system includes an outdoor unit and a plurality of indoor units connected in parallel to the outdoor unit. A compressor frequency and combustion control calculator reads a load level for each indoor unit from a load coefficient table using a differential temperature calculated by a differential temperature calculator and a rated capacity stored in a rated capacity memory. The compressor frequency and combustion control calculator then multiplies a sum of the load levels by a predetermined constant and adds a compensation value thereto to obtain a frequency value. This value is used to control the compressor. The compressor frequency and combustion control calculator also sets a target combustion level using the frequency value for control of a refrigerant heater mounted in the outdoor unit.

Abstract: A toner is provided for electrostatic latent image developing which exhibits desirable smearing, offset and filming characteristics during copying, and which has excellent toner flow characteristics and chargeability properties. The toner of the present invention contains at least a binder resin containing polyethylene wax, and at least polypropylene wax, and colorant. The toner of the present invention is made by a process whereby polyethylene wax is added to a binder resin to form a mixture. The mixture is then added or mixed with a colorant and polypropylene wax.

Abstract: This invention aims to provide more comfortable air-conditioning and save energy by exerting capacity of an air-conditioning system responsive to requested capacities from plural rooms through the following process: first, establish a refrigerating cycle for a multi-room air-conditioning system, second, obtain data from differential temperature calculation means, capacity storing means, ON-OFF recognition means and load constant storing means, then calculate a compressor's capacity at a predetermined cycle, and provide compressor capacity control means which controls the capacity of variable capacity compressor based on the calculation result, and also provide operating unit recognition means which recognizes a number of operating units through the ON-OFF recognition means, finally, change a method of controlling the compressor capacity depending on the number of operating units.

Abstract: In the present invention, in carrying out reversal development of an electrostatic latent image formed on a positively charged amorphous silicon type photoreceptor, a developer including positively charged toner particles containing binder resin and a colorant, first inorganic fine particles having a number-average particle diameter of 0.1 to 3 .mu.m, and second inorganic fine particles subjected to surface treatment by a hydrophobic agent and having an average primary particle diameter of 0.005 to 0.02 .mu.m is used.

Abstract: The present invention relates to toners for developing electrostatically charged images which contains polyethylene fine particles and polypropylene fine particles as wax, which have a specific particle size. By incorporating such polyethylene and polypropylene fine particles into toners the prevention of smear, offset, filming, and improvement of fluidity and chargeability of the toners can be achieved.

Abstract: A toner for two-component developing agent is provided which can prevent smearing and offsetting during copying operation, and which is not liable to fluidity decrease and chargeability deterioration. The toner contains polyethylene and polypropylene as toner waxes and incorporates a magnetic powder having a certain BET specific surface area.

Abstract: A developer for developing an electrostatic latent image comprising: (a) a positively chargeable toner particle comprising a binder resin which comprises a styrene-type copolymer having an acid value of 1 to 10 KOHmg/g and a colorant; and (b) a hydrophobic silica adhered to the surface of said toner particle, said hydrophobic silica being treated by a hydrophobic property imparting agent and having a pH of 6.5 to 9.0.

Abstract: A toner produced by pulverizing and classifying a melt and kneaded mixture comprising a binder resin, a colorant and an offset preventing agent, said binder resin comprising a styrene-type copolymer and said offset preventing agent comprising a polypropylene having a softening point of 135.degree. to 155.degree. C. and a polyethylene having a softening point of 100.degree. to 150.degree. C., wherein a total amount of said polypropylene and said polyethylene is 2 to 10 parts by weight per 100 parts by weight of the binder resin and a weight ratio of said polypropylene to said polyethylene is 1:3 to 1:1, and said pulverizing and classifying carried out by a pulverizer and classifier which impart mechanical impact on a particle to be treated.