Abstract: An industrial robot system comprising a single working machine, and a plurality of robots arranged so as to transfer a work to and from this working machine. The operation of these robots and the working machine is controlled by a single control unit, and the operation of all the robots is controlled in a realtime manner in synchronism with the operation of the working machine, thereby ensuring the smooth operation of the overall system while obviating waiting time of each robot and the working machine without using a conventional mutual interlock system.

Abstract: A heat transfer tube comprising an inner tube formed of copper or steel, an intermediate layer having a uniform thickness, mounted on the outer periphery of the inner tube and formed of a low melting point metal such as solder, tin or lead and an outer tube of lead or lead alloy mounted on the intermediate layer on the inner tube and metallurgically bonded with the intermediate layer when the low melting point metal is melted.

Abstract: An apparatus for heating fluid in a storage tank or transport pipe includes a elongated horizontally positioned tubular receiver having a cover plate at one end thereof through which an electric cartridge heater is inserted into a lower portion of the receiver. A vaporizable working fluid partially fills the lower portion of the receiver to a level sufficient to cover the heater and a temperature detector for controlling the heater is inserted through the cover plate into the receiver above the level of the fluid therein. A sealed tubular heat exchanger communicates with the receiver through a single passage through which vaporized working fluid enters the heat exchanger and condensed working fluid's returned to the receiver and the receiver and heat exchanger are evaculated of gasses. The heat exchanger may be disposed whithin a container holding fluid to be heated or constitute a jacket disposed around the container.

Abstract: A separate type heat exchanger characterized in that the evaporation section heated by the hot fluid is formed by fitting a plurality of the evaporation pipes horizontally between the vapor header pipe and the condensed liquid header pipe, the condensation section cooled by the cold fluid is formed above said evaporation section by fitting a plurality of the condensation pipes between the vapor header pipe and the condensed liquid header pipe, both vapor header pipes are connected through the vapor pipe and both condensed liquid header pipes are connected through the condensed liquid pipe to form a circulation path, and said path contains the working fluid is sealed within said path which circulates by evaporating at the evaporation section and condensing at the condensation section.

Abstract: A heat pipe heat sink for air cooling of semiconductor devices characterized by arranging heat pipes in a zigzag form toward the direction of air flow around the fin section in the heat sinks. A block for mounting the semiconductor device is fitted to the heat-in sections of the plural heat pipes arranged in parallel, and a large number of radiating fins crossing over the heat pipes are fitted to the heat-out sections of the heat pipes protruding from the block.

Abstract: This invention relates to a method for manufacturing a granular organic rubber composition which is useful for a vulcanizing agent, a vulcanization accelerator and antioxidant etc. by contacting an organic rubber chemical mixture comprising a rubber chemical, a liquid polybutene, a nonionic or anionic surface active agent and a water-soluble anionic macromolecule with an aqueous solution containing an alkaline earth metal salt and/or a zinc salt.

Abstract: This invention relates to an improvement in a heat exchanger of the type using heat pipes which permits reduction in size of the heat exchanger and enhancement in heat exchange efficiency and more particularly to a cylindrical heat exchanger principally comprising a cylindrical or polygonal tubular casing provided with openings in the middle parts of its upper and lower sides and in its circumferential side, a transverse partition plate which divides the inside of the casing into upper and lower parts and a group of vertical heat pipes arranged to pierce through the peripheral portion of the partition plate in an annular plan configuration as a whole.

Abstract: This invention relates to an improvement in a heat exchanger of the type using heat pipes which permits reduction in size of the heat exchanger and enhancement in heat exchange efficiency and more particularly to a cylindrical heat exchanger principally comprising a cylindrical or polygonal tubular casing provided with openings in the middle parts of its upper and lower sides and in its circumferential side, a transverse partition plate which divides the inside of the casing into upper and lower parts and a group of vertical heat pipes arranged to pierce through the peripheral portion of the partition plate in an annular plan configuration as a whole.

Abstract: Crude 2-mercaptobenzothiazole is purified by preparing a crude, liquid 2-mercaptobenzothiazole by reacting aniline, carbon disulfide and sulfur under elevated pressure at high temperatures; extracting said crude, liquid 2-mercaptobenzothiazole in the molten state with cold carbon disulfide by liquid-liquid extraction thereby forming a slurry of 2-mercaptobenzothiazole crystals; and filtering and drying said crystals.