Abstract: Method of repairing a steam generator tube by means of a liner, in which the mechanical deformation (19) of the liner (15), by expansion in its end part opposite the expanded end (16) inside the tube plate (11), is located at a limited height, and the parameters of the mechanical deformation (19) are calculated in accordance with the welding parameters subsequently applied. These parameters are determined in accordance with the parameters of the initial mechanical deformation (19) so as to obtain relief of the stresses more particularly in the critical zones (19a, 19b) of the mechanical deformation.

Abstract: A link-band cover for guideways and moving parts of machine tools, as well as for other structural elements of machine tools that could lead to accidents. The cover includes individual rigid strips that can be sequentially arranged in a plane. Each strip has long sides, with adjacent long sides of adjacent ones of the strips each being provided with a respective slot that is open toward the adjacent strip and has an undercut base. Hinge members in the form of hinge eyes are disposed between each two adjacent strips to pivotably interconnect the same, with each hinge eye being anchored in one of the slots of the strips. Hinge eyes between two adjacent strips are aligned on a pivot shaft, with adjacent hinge eyes being anchored in the slots of different strips.

Abstract: A system is described for the production of rapidly solidified powder. The system contains elements for casting rapidly solidified ribbon, an in-line knife mill or a hammer mill for fracturing the rapidly solidified ribbon into shard, and either an in-line fluid energy mill, or an in-line centrifugal mill for reducing the shard to powder. The system can effectively reduce ribbon to powder in an in-line operation, and produce a powder with a particle size of -31 35 mesh. A method employing the system is also described.

Abstract: A lead frame assembly comprises a stamped and formed lead frame having spaced pairs of electrical terminals and other contact sections. Severable sections initially interconnect potential electrical circuit sections of the lead frame separating the lead frame into separate metal members defining discrete electrical circuits if severed. A dielectric covering is molded over the lead frame exposing the pairs of terminals and other contact sections for termination or electrical engagement. Openings are formed in the housing exposing the severable sections of the lead frame for severing, to be selectively severed creating separate electrical circuit sections, or to be retained unsevered, as desired. After the molding of the covering over the lead frame, the article thus fabricated can be customized by selective severing and connecting of components as desired. Thus a method has been described for making a customizable lead frame assembly.

Abstract: For adjustment of the relative positions of two machine parts, at least one of the machine parts is provided with projections outwardly formed by stamping, the projections having contact surfaces which lie against the other machine part. The adjustment is performed by setting the projections back under the influence of a pressing force according to requirements. By this operation a relatively large contact surface can be provided. The deformation process takes place exclusively in the transition region between the projection and the rest of the machine part. The restoring forces are relatively small and relatively constant over the entire restoring range.

Abstract: A method and apparatus for securing straight tubes between two tube sheets in a pressure-tight manner, especially in the manufacture of heat exchangers. Tubes are inserted, with play, in bores of the tube sheets. One end of each tube is hydraulically expanded via a pressure medium to thereby press this one end against the associated tube sheet. The one end is secured to the associated tube sheet, preferably by being welded thereto. Each tube is heated in conformity with a prescribed prestress that is to be produced in secured ones of the tube to take into account subsequent operating conditions to push a portion of the non-secured other end of the tube out of its associated tube sheet until a predetermined difference in length between the cold and heated-up states of the tube is pushed out.

Abstract: Method of fabricating and assembling metal catalytic converter catalyst substrates by sequentially laying strips of foil of predetermined widths onto a strip of sheet metal as the latter is formed into a single seam tube about the layers of foil to contain and restrain same, seam welding the tube along its length, and cross cutting the tube and contained layers of foil into predetermined lengths to form catalyst substrate units.

Abstract: An apparatus for holding a slider includes a holder body defining a space for receiving a pull tab, and a slider support having a first seat and a bore below the first seat. A locking lever is pivotally disposed in the space and has a locking projection. A supporting arm is angularly movable between an inclined position in which its second seat is positioned remotely from the first seat and it presses the locking lever so that the projection is retracted into the bore, and an upright position in which the second seat is positioned adjacent to the first seat. As the arm is angularly moved from the inclined position to the upright position, the locking lever is allowed to turn so that the projection projects through the bore for engagement with the slider's pull tab.

Abstract: The invention relates to a press roll arranged to interact with a second roll in the wet end of a paper or paper board machine for forming a nip between the rolls. In the press roll a surface is arranged to be pressed against the second roll and is made of an elastic material for extending the nip. In order to provide a simple and versatile structure, the surface made of an elastic material is formed by a separate shell portion which surrounds a body of the press roll and is positioned over its entire length at a distance from the body. The shell portion is supported to be stationary with respect to the body by means of end flanges provided in the ends of the body, so that the shell portion is able to yield over the entire length thereof radially inwards towards the body locally at the nip point.

Abstract: A method for manufacturing a rolling piston rotary compressor in which a cylinder block is adjusted during manufacture to provide a desired vane slot width. The cylinder block is provided with a thin walled section located radially out from the vane slot. The thin walled section is plastically deformed during manufacture to provide a desired vane slot width for receiving a previously finished blade having a known thickness.

Abstract: A mineral breaker including at least one breaker drum carrying a plurality of breaker teeth projecting radially therefrom, at least one breaker tooth comprising a tooth core projecting radially outwardly of the drum and having leading and trailing faces, an open sided tooth sheath including a leading wall and a trailing wall connected to one another at one end by a connecting wall which forms the terminal end of the tooth, the inner surfaces of the leading and trailing walls of the tooth sheath having flat faces which abuts against opposed flat faces on the tooth core.

Abstract: A contact terminal for insertion into a plated through-hole of a printed circuit board is formed from thin metal stock of uniform thickness with a tubular compliant mounting section. A plurality of slits are spaced around the mounting section, and along one side of each slit are a pair of outward projections to engage the wall of the plated through-hole so that the metal on one side of each slit is deflected radially inwardly by the plated through-hole when the terminal is inserted, to mechanically secure the terminal therein. Outer edges of the projections along the slits penetrate the plating material during insertion. A method for making such a terminal includes piercing the mounting portion area of the blank, forming slits therein, forming projections along one side of each slit to extend out of the plane of the blank, and rolling at least that portion of the terminal into a tubular shape so that the pairs of projections extend radially outwardly.

Abstract: A carrier board has electronic circuit components mounted thereon which are conductively connected to carrier board connectors which are in turn interconnected to an interconnect board. The interconnect board has a plurality of first conductors and second conductors that are separated and positioned to intersect to form a plurality of intersections. The first and second conductors may be selectively placed into conductive contact at selected intersect points to thereby form a desired electronic circuit. The interconnect board specifically includes a deformable material between the first and second conductors which are conductively connectable alternately and selectively through the imposition of pressure and temperature.

Abstract: A method of mounting an LSI or IC on a wiring circuit substrate by hot-pressing which comprises the steps of placing the pins of the LSI or IC on a heat sealant printed over the circuit pattern of the substrate, placing a film sheet on the entire or partial surface of the LSI chip or IC chip including the pins of the chip, and carrying out a hot-pressing operation on the film sheet.

Abstract: A cylindrical brush is formed to have multiple interfitting and interconnected sections which may consist of synthetic resin; holes are controllably and automatically drilled in the sections in selected patterns so that bristles may be filled into certain holes to be retained by staples; other holes may be controllably drilled into the sections and shaped to supply fluid radially outwardly for cleaning bristles or for cleaning work, or drying or waxing same; holes may be formed at telescoping end extents of the sections; bristles may be anchored by staples with legs deflected by a mandrel or shaft; and staples may act to lock telescoping sections of a sleeve or core, assisted by bonding of the plastic sections.

Abstract: A method for manufacturing a multiple wire brush contact includes the steps of stamping a continuous strip of material so as to define a series of spaced blanks, each including a cross bar and a base mounting plate, separating side carrier portions, welding and soldering contact wires onto the cross bar portions, cutting and forming the contact wiper. The multiple wire brush contact assembly thus includes a base mounting plate that is separate from the cross bar and wire spring and that is used to handle and mount the assembly in a cooperating receiving space in a rotor or other element.

Abstract: An apparatus and method for temporarily sealing holes in printed circuit boards are disclosed. The apparatus comprises two major assemblies: a heater block assembly and a vacuum table assembly. The heater block assembly employs a temperature controlled, insulated heater block having a surrounding, movable vacuum collar. A flexible, thermally conductive vacuum skin is mounted on the movable vacuum collar and forms a vacuum chamber in cooperation with a movable vacuum table having a flat, thermally conductive porous plate whose upper surface is parallel to the vacuum table surface. A cooling block in contact with the thermally conductive porous plate cools the porous plate. A sandwich comprising a porous release sheet, the printed circuit board, a thermodeformable material and a thermally conductive cover sheet are positioned on the cooled porous plate. The vacuum table and sandwich are moved together so that the table forms a sealing relation with the flexible, thermally conductive vacuum skin.

Abstract: An apparatus and method used in making wire and similar elongate members, and wire made using same, are provided wherein rods are extruded using a filled billet technique which comprises disposing the rods in a can comprising the filled billet and additional steps are employed which comprise placing the rods in adjoining side-by-side relation to define a geometric pattern and fixing together at their ends those rods defining the periphery of the pattern to define a dense pack of the rods wherein the placing and fixing steps are achieved prior to the step of disposing the rods within the can, and wherein the dense pack and hence the rods are adapted to fit snugly within the can during the disposing step and separable filler means is added between and around the rods whereby the fixing step assures that during extrustion the rods are reduced in cross-sectional area in a better controlled manner.

Abstract: An installation tool for mounting a loadbreak reducing tap plug in a high voltage "T"-type connector of the type including a cable connector having a threaded opening, the plug having a threaded end adapted to be mounted in the threaded opening of the cable connector and a threaded bolt extending through the threaded end of the plug, the threaded bolt having a wrenching opening and being rotated by a wrenching tool for connecting the plug to a bushing, the installation tool comprising a shaft having a threaded end corresponding to the threaded opening in the connector and a threaded opening corresponding to the threaded bolt, whereby the threaded end of the installation tool can be mounted in the threaded opening in the connector, the threaded bolt can be mounted in the threaded opening in the installation tool, and the threaded end of the plug can be drawn into alignment with the threaded opening in the connector when the installation tool is backed out of the threaded opening in the connector.

Abstract: A piston-glide shoe combination for use in a zone-adjustable variable-crown roll comprising a stationary central axle and a cylindrical roll mantle rotatably mounted on the central axle, the glide shoes of the combinations being loaded by hydraulic fluid pressure against the inner surface of the roll mantle so as to control the distribution of nip pressure in a nip formed by the variable-crown roll and a counter-roll. The piston-glide shoe combination includes an auxiliary chamber arrangement into which the pressure fluid is passed from the lubrication chambers and/or glide surface regions of the glide shoe through ducts so that when the pressure in the lubrication chambers and/or on the glide surface regions of the glide shoe is reduced, the reduced pressure is transmitted through the duct to a particular auxiliary chamber or chambers so that a torque tending to stabilize the play at the glide surface of the glide shoe that causes the reduced pressure.