Abstract: A method for manufacturing a metallic carrier base material having a multi-layer structure, if desired accommodated in a cylindrical case, for maintaining a catalyst for exhaust gas purification, wherein a multi-layer body having a number of screen-like vent holes in an axial direction is formed by piling up alternatively a planar band material and a corrugated band material made of thin nickel-plated steel strips, to furnish the contact portion. After inserting the multi-layer body into a cylindrical case, if desired, the multi-layer body or thus obtained composite is treated by immersion processing in a molten aluminum bath.

Abstract: A temperature-sensitive fan-coupling apparatus is provided with a driving side and a driven side. The driving side comprises a tightly sealed housing. The driven side comprises a rotary member from which fan blades extend. The rotary member includes a following disc disposed in the housing with a torque transmission gap existing between the following disc and the housing. A partition plate is mounted to the rotary member to define an oil reservoir therebetween. An aperture extends through the partition plate to provide communication between the oil reservoir and the torque transmission gap. A temperature-sensitive member is mounted external to the driven end of the apparatus and to one end of a connecting rod which extends through the rotary member and into the oil reservoir.

Abstract: A structure comprising two interconnected metal tubes used for supplying oil or air. The first tube inserted in the second tube has a tubular wall at its one end and an outwardly swelling circumferential wall formed inside the tubular wall. The second tube has plural slots arranged circumferentially. A seal member is sandwiched between both tubes. A binding band is wound around the slots to compress the portion having the slots, for fastening the tubes together.

Abstract: Multilayered coated corrosion resistant steel material having a galvanized layer on one surface thereof, an electro-deposited layer on said galvanized layer formed from a zinc-based alloy containing nickel and having a thickness of one to six microns; and a resin layer on said electrodeposited layer.

Abstract: Each blade of a high speed propeller fan extended radially outwardly from a member connected to a rotating body has a coarsened surface at least part of its suction side. The coarsened surface has a coarsened density or depth which gradually increases from the rear edge of the blade to its front edge.

Abstract: Herein disclosed is a valve actuator which is to be used with a slide exhaust brake system. The valve actuator includes a cylinder casing which is constructed of: a shortened cyclinder body having a length substantially equal to the sliding distance of a piston member fitted therein; and a cylindrical wall fixed on the inner side of the bottom wall of the cylinder body such that the cylinder body has its lower end merging around its circumference into the circumference of the upper end of the cylindrical wall. The heat to be transferred from the exhaust brake system to the actuator is effectively reduced by a thermal impulse at the fixing portion between the cylinder body and the cylindrical wall to exert less thermal influences upon the packing of the piston member.

Abstract: An improved fixing arrangement includes a planar flange having a mounting hole formed through an axial portion thereof, a radially expanded portion being formed in a portion of the peripheral surface of the mounting hole for receiving an annular resilient sealing member; and a pipe having one end provided with an pipe-diameter portion and a radially expanding annular portion. The radially expanding annular portion is engaged with the peripheral edge of the mounting hole which is formed on the back side of the flange to insert the pipe-diameter portion into the mounting hole. In addition, within the mounting hole, the end of the pipe-diameter portion is enlarged or a part of the pipe-diameter portion is radially expanded to press the resilient sealing member and to clamp the radially inwardly projecting peripheral edge of the mounting hole between the radially expanded portion and the enlarged end or radially expanded end portion, thereby fixedly connecting the flange and the pipe.

Abstract: Herein disclosed is a slide type exhaust brake system. In this system, a plate valve member having an exhaust pressure regulating port extending through its surface is fitted in an exhaust brake body housing having a valve member reciprocation passage extending generally at a right angle from and communicating with an exhaust flow passage having exhaust pipe joint walls projecting at its two side end portions.

Abstract: A thin flexible metal tube comprising two flexible bendable portions having low corrugations and a straight flexible portion having higher corrugations easy to absorb vibrations and disposed between both the bendable portions.

Abstract: A structure in which a small-diameter thin metal pipe is connected at one end to a flange coupling. The pipe has an end portion and an outer turned-up portion formed at the end of the end portion of the pipe. The structure includes a metal sleeve inserted at one end between the end portion and turned-up portion of the pipe. The sleeve is longer than the turned-up portion. The metal sleeve and the end portion and turned-up portion of the pipe as they are inserted into a hole in the flange coupling and fixedly welded together along at least the edge of the hole.

Abstract: An apparatus for bending a metal pipe having a small diameter includes a pipe retaining mechanism and bending units. The pipe retaining mechanism comprises a pair of chucks consisting of a split pattern provided on a support. One of the chucks is fixed and the other is mounted on the distal end of a piston rod of a cylinder device in such a manner that it opposes the one of the chucks. The bending units are provided on the support on two sides of the pipe retaining mechanism in the crosswise direction thereof, and has forming rolls supported to fixtures on the support on two sides of the extension of the axis of the pipe retaining mechanism, as well as press rolls which are pivotal about the forming rolls. The support is fixed to the upper end of a drive shaft rotated in cooperation with a piston rod of a cylinder device on a base, so that the bending apparatus on the support can be pivoted on the plane of the support during bending process.

Abstract: An intake system for an internal combustion engine comprises: an intake passage having an intake port and an inertial supercharging intake pipe leading from the passage; a rotary valve in the intake pipe and rotatable for opening and closing the intake pipe; and timing adjusting means for changing the opening timing of the rotary valve in accordance with engine speed.

Abstract: There is provided a flexible composite hose constructed such that a plastics inner tube is covered with an outer tube of heat-shrinkable material, with the inner tube being compressed by the shrinkage force of the outer tube. It is produced by covering an inner tube with an outer tube having a slightly larger inside diameter than the outside diameter of the inner tube, and then heating the tube assembly at a proper temperature to effect heat shrinkage. It has good chemical resistance and pressure resistance.

Abstract: A thermal response type fluid fan coupling device which is constituted by a sealed chamber which is divided into an oil accumulating chamber and a torque transmission chamber, and which accommodates a driving disc, by a separating plate having an oil flow adjusting hole, in which a dam is provided in a circulated passage connecting the torque transmission chamber and the oil accumulating chamber, and a valve member for opening and closing the flow adjusting hole in accordance with change in ambient temperature is provided so as to control torque transmission from the driving side to the follower side by changing the effective oil contact area in a gap for transmitting torque between the driving disc and the case and the cover, wherein an idle oil accumulating chamber which is connected to an oil introducing gap which is connected to the torque transmission chamber is provided at the position outer than the dam in the radial direction, and oil introducing means for connecing the oil accummulating chamber and t

Abstract: A stationary clamping device for fast attachment of a tubular article such as a metallic tube, a resinous tube, or a wire harnessing member to a basal surface comprises a clamp proper formed of a platelike fitting wall possessing a fitting hole intended for union of the clamp proper and the basal surface and a socket member of a small length made of a thermally shrinking material and adapted to tack the engaging wall and the end part jointly in an enclosed state. The fast attachment is attained by setting the tubular article on the engaging wall, collectively tacking the set portion of the tubular article and the immediate vicinity thereof with a socket member of thermally shrinking material, and heating the socket member or the set components thereby causing thermal shrinkage of the socket, contraction of the tacked components, and immobilization of the tubular article.

Abstract: A seam welded steel pipe proofed against corrosion and prevented from oxidizing a fluid such as gasoline to be passed therethrough is produced by a process comprising forming an Ni layer by electroplating on at least one of the opposite surfaces of a steel strip, abutting the opposite edges of said steel strip in the direction of width with the Ni layer on the inside and fusing the abutted edges, subjecting the resultant steel pipe to a heat treatment in an oxidizing atmosphere thereby forming an oxide coating on the surface of the Ni layer, acid dipping the resultant steel pipe thereby removing the oxide coating from the portion of the skin of steel exposed in the neighborhood of a bead part in consequence of the fusion, and introducing a chemical Ni plating liquid through the interior of the steel pipe thereby coating the inner surface in the neighborhood of the bead part with a Ni alloy layer by chemical plating.

Abstract: A clamp for disposing and securing a metal pipe or a resin tube having a relatively small diameter is disclosed. The clamp has a gripping wall for clamping a pipe, the gripping wall being formed by bending the longitudinally central portion of a rectangular piece of plate in the shape of a cylinder which extends laterally, and flat support walls which are defined by two end portions, respectively, of the piece of plate which are contiguous with the gripping wall, the support walls being superposed one upon the other and provided with respective mounting bores which are disposed so as to align with each other when the clamp is secured to a base. The clamp is provided with a clamping wall defined by a projecting end portion of one of the support walls which projects beyond the edge of the other support wall.

Abstract: A thick-walled composite metal tubing comprising an inner tubular member made of a steel pipe and an outer tubular member made of a carbon steel pipe which are press-fitted together with integration bonding thereof involving disappearance of the boundary interface at least in part of the inner and outer tubular members, and process for producing the same.

Abstract: An assembly comprising a thin-walled metal tubing coupled to a flange. The tubing is used as a passage for supplying oil or air, and has a small diameter. A short metal cylinder having a wall thickness larger than that of the tubing is fitted over the tubing. The tubing and the cylinder are welded together at their front ends. The cylinder to which the tubing is welded is inserted in a hole formed in the flange. The outer surface of the cylinder is welded to the fringe of the hole.

Abstract: A fan blade which makes use of the difference in the thermal expansion coefficient to enable the angle of attack to be variable without a substantial change in the camber quantity and without the need to employ a temperature-sensitive fan clutch. The blade is provided with two plate-like members having a smaller thermal expansion coefficient than that of the blade in such a manner that one of the plate-like members is provided on the suction-side surface of the blade so as to extend from the forward edge portion at the distal end of the blade toward the rearward edge portion at the proximal end of the blade, and the other plate-like member is provided on the delivery-side surface of the blade so as to extend from the rearward edge portion at the distal end of the blade toward the forward edge portion at the proximal end of the blade, that is, the two plate-like members provided on the obverse and reverse surface, respectively, of the blade cross each other in a substantially X-shape.