Abstract: An improved ingot shape which when rolled to sheet or plate does not form laminated edges which must be trimmed. The narrow faces of the generally rectangularly shaped ingot have recesses along the length of the upper and lower portions thereof. The land area between the two recesses on each narrow face extends outwardly beyond the top and bottom edges of the ingot.

Abstract: In an automatic tape assembly process an IC chip is bonded to the finger pattern created in a metal assembly tape. Then the housing is applied to encapsulate the IC during assembly. An insulating strip is then applied to the metal fingers that will ultimately become the packaged device loads. The strip is located just inside that point where the fingers will be excised from the tape so that after excision the strip will hold the leads in position for testing and handling.

Abstract: An extruded section bar member for use as a vertical support in furniture, particularly in industrial and office furniture, comprising a cross section corresponding to an elongated rectangle with rounded edges and including T-grooves recessed into its long sides for receiving fastening elements.

Abstract: The method and apparatus for forming flanged holes and a resulting plate and tube assembly of the type used in fluid-to-fluid, such as gas-to-gas, liquid-to-liquid and liquid-to-gas, heat exchangers. A depression is formed with the aid of a punch in a plastically deformable metal sheet such as steel, aluminum, copper and the like, while applying controlled counterpressure with the aid of a larger counterpunch so that material displaced from the space between the punches is laid upon the inner bore of a constraining die. Thus the wall of the depression is formed by purely compressive means. The base of the depression may then be removed to provide deep flanges of controlled dimensions free of cracks or splits.

Abstract: A protective ring cover for cooking element stove rings. It comprises an annular body shaped to conform to the upper shape of a cooking element stove ring, which is to be covered. The annular body in cross-section is of inverted substantially U-shape with an outwardly directed flange at the outer leg of the U-shape. The cover is made of non-inflammable material (e.g. aluminum) and is adapted to fit removably onto a cooking element stove ring.

Abstract: A thin sheet of metal is drawn in progressive steps to form a hollow body having a closed end tubular portion integrally connected to an outwardly projecting cup-shaped flange portion. A section of the tubular portion is crimped inwardly against a threaded mandrel to form helical threads and diametrically opposed and outwardly projecting double wall rib portions. The mandrel is unthreaded to form a sheet metal insert which is adapted to be supported within a mold cavity by a cylindrical support pin during injection of a plastics material into the cavity and around the insert. The threads and rib portions positively secure the sheet metal insert within the molded plastics article or part for receiving a threaded fastener. The insert may also be used in a metal part or casting or in a wood article, wherever threads are required or desirable.

Abstract: To permit direct bonding of a composite electric contact-and-bonding material to a carrier, such as a reed, magnetic strip, or the like, by thermo-electric heating, the side of the contact-and-bonding material is formed with projections, preferably projecting ridges, ribs, or beads, and a bonding or solder material in wire form is adhered, by rolling on to the valley between the projecting ridges, the bonding or soldering material leaving space free between adjacent ridges or ribs and not filling the entire recess, but projecting outwardly at least as far as the projections or ridges, and preferably slightly therebeyond. The soldering or bonding wire may have round or polygonal, preferably triangular cross section with a pointed tip extending outwardly to provide for concentration of heat upon resistance heating the contact material against the carrier strip.

Abstract: A structural member comprising a flat strip of web of material having a plurality of slots formed at spaced intervals along each edge of the strip, the inner portion of each slot being of greater dimension than the outer portion and formed to the desired degree of curvature in the plane of the strip.

Abstract: Compensation is provided in a welded structure formed from dissimilar metals e.g. carbon steel and stainless steel for knife-line corrosion occurring at the interface between the dissimilar metals by making the length of the path along which knife-line corrosion is liable to occur between the metals towards the load bearing area of the weld exceed the expected extent of knife-line corrosion over the design life of the structure. The interface exposed to the corrosive environment may be displaced from the load bearing region of the weld by providing a layer of metal e.g. the weld metal over, and fused to the surface of the one of the components with which the metal of the layer forms a knife-line corrodable combination. That surface may include the surface of an appendage integral with or welded to the component.

Abstract: In an automatic assembly tape for semiconductor device assembly a continuous tape includes a plurality of sequential metal finger patterns. Each pattern includes a plurality of fingers that extend inwardly to form an array that mates with the bonding pads on a semiconductor device chip. The fingers are bonded to the chip pads so that the chip is then associated with the tape and therefore emenable to further assembly on high speed machines on a reel-to-reel tape handling basis. Each finger pattern includes an inner tear strip ring that initially holds the fingers together in a unitary structure. The fingers are joined to the ring via intermediate weakened regions. After the fingers are bonded to the chip pads, the ring is torn away so as to separate at the weakened regions. Prior to bonding, the fingers are held in precise location and in a common plane. This allows close spaced complex finger patterns and avoids bent fingers which can cause bond failure and possibly clogging of the auto assembly machines.

Abstract: The catalyst support is a spiral formed by winding a single strip of metal upon itself. Indentations in the strip maintain a uniform spacing between the layers in the spiral. The indentations are displayed along the strip in at least two different patterns. Different patterns are wound onto successive layers in the spiral so that the indentations in successive layers cannot coincide and nest together.

Abstract: PCT No. PCT/SE 78/00023 Sec. 371 Date Apr. 2, 1979 Sec. 102(e) Date Mar. 15, 1979 PCT Filed Jul. 15, 1978 PCT Pub. No. WO79/00079 PCT Pub. Date Feb. 22, 1979Blank for pipe manufacture, intended to be wound helically so that a joint is formed between adjacent turns in the helically wound blank thereby, that a portion on the lateral edge (11) of the blank in a turn is fitted into a portion of the remaining lateral edge (12) of the blank in an adjacent turn.A portion (13) located between said two portions on the lateral edges of the blank has an outward bulge enclosing a cavity. Said bulge is of such a shape that the surface (18) of the cavity enclosed in a section through the transverse direction of the blank is substantially greater than the surface (21) in said section between the two adjacent edges (19,20) on the blank, which are the places of attachment for the bulge.

Abstract: The disclosure relates to a housing in which any one of a plurality of steam trap valve assemblies may be installed and which may be machined to accommodate a plurality of different inlet and outlet conduit configurations. The housing includes a main body through which a central cylindrical passage extends. Flanges extend radially outward from the main body at opposite ends of this passage and serve to connect the main body with the top and bottom members. The main body also includes a pair of additional passages which are parallel to the central cylindrical passage and a pair of bosses which extend radially outward. The top and bottom are made from identical castings and each comprises a circular portion adapted to mate with a flange on the main body and a boss extending diametrically from the perimeter of the flanges across at least past its center. The bosses on both the main body and the top and bottom may be machined to provide a plurality of different fluid flow paths and inlet and outlet connections.

Abstract: A laminated pack comprises a plurality of uniform, closely adjacent superposed sheets and a mechanical interconnection for said sheets holding them together which comprises the pinching of a portion of the sheets themselves against one another. The interconnection is effected by slitting the sheets in areas to form teeth on each side of a hole formed through the sheet or along an edge of the sheet and by subsequently deflecting the teeth in a stacked set of sheets so that adjacent ones of the teeth move into recesses vacated by similarly deflected teeth of the next adjacent sheet and fit into the area with a pinching interengagement. The pack is formed by feeding prestamped sheets along a feed path and separating and stacking individual sheets therefrom in a direction perpendicular to the advance direction of the strip and also pinching the sheet so that teeth formations of superposed sheets bear into the next adjacent sheet to hold them together.

Abstract: A blank for a stone setting comprising a base and prongs extending radially therefrom, said blank having a planar lower side and a notched upper side, the notches at the upper side defining at the junctions of the prongs with the base hinges which enable bending the prongs upwardly relative to the base to form a stone cage and at the distal ends thereof a seat for the stone and tangs for fixing the stone against the seat. A method of making a setting including making the blank by striking it from malleable sheet metal, removing parts of the sheet metal from around the bank, stripping the blank from the sheet metal, using a punch to force it into a die for bending the prongs and tangs at their notched areas to shape it into a cage. A further method of setting a stone by seating a stone against the seat at the top of the cage and bending the tangs against the stone.

Abstract: A powdered metal part is provided with a side recess or notch which is shaped to receive a threaded member or screw. The part is made from powdered metal formed under high pressure by punches and a die and the part is then sintered. The threaded member is threaded into the notch in a direction which is transverse to the direction in which the punches and die are brought together to form the part. The recess or notch has generally parallel side walls extending between opposite surfaces of the part with the side walls having V-shaped ridges and grooves. The ridges are opposite the grooves to threadedly receive a machine screw or the like which is turned into the open end of the notch.

Abstract: An arm for holding the impact stylus of a high speed dot matrix printer is fabricated from a single stamping which when properly folded defines two members having C-shaped cross-sections joined by a thin web. The web is folded around the stylus to bring the 4 legs of the two C-shaped members into overlapping relationship to define a hollow elongated and tapered arm having the stylus substantially wholey encircled by the web whereby after brazing the stylus is securely held.

Abstract: A welded aluminum die cast article and method for making. Two or more die cast pieces are welded together to form a single part. The welding takes place along a welding seam characterized by formation of a relatively deep molten pool of metal within the weld seam during the welding operation.

Abstract: The catalyst support is a spiral formed by winding a single strip of metal upon itself. Indentations in the strip maintain a uniform spacing between the layers in the spiral. Heretofore this uniform spacing has been obtained only by winding a double layer of two strips, one flat and one corrugated.

Abstract: Clamping means for workpieces of different shape, includes a clamping member firmly connected to at least one workpiece and being receivable and clampable in a clamping device, the clamping member being integral with the at least one workpiece and being formed of narrow web-like bridges, and three support cams disposed at extremities of the bridges outside the at least one workpiece, the support cams being located at respective vertices of an imaginary triangle.