Abstract: The present invention pertains to a system of sized bricks for lining spherical bottoms, especially of metallurgical vessels, wherein the individual sized bricks are defined by six, essentially flat surfaces, namely, the fire-side surface, the cold-side surface, the two lateral surfaces, as well as the inner and outer surfaces, and the said sized bricks are intended for arrangement in concentric rings wherein the sized bricks within each of these rings join each other with their lateral surfaces, and wherein the outer surfaces of the sized bricks of one ring border on the inner surfaces of the sized bricks of the next ring.

Abstract: The present invention pertains to a binding and plasticizing agent for preparing refractory materials, in which the binding agent contains a synthetic resin, a phosphate, and a surface-active agent.

Abstract: A hand-held breaker tool for adjusting the length of the side rails of frames that support hanging file folders in a drawer. The tool is used to break off an unwanted excess length portion of the side rails. A method of adjusting and assembling a frame for holding and supporting hanging file folders and inserting the frame into a drawer of a desk or file cabinet.

Abstract: In a railroad auto rack car having an array of side panels with horizontal air gaps between vertically adjacent panels, a strip of continuous flexible resilient plastic material, preferably vinyl having a white color, is fitted onto and adhesively secured to horizontal flanges of vertically adjacent upper and lower side panels to function both as a seal to close the horizontal air gap against swirling road dirt and also as a protective bumper to protect the automobiles from damage from being bumped during loading and unloading of the rack car. The bumper seal in preferred form has upper and lower legs each having a channel which faces the center axis of the bumper for receiving the vertical flanges found along the horizontal edges of the side panels of the rack car. The portion of the bumper seal along the center axis is designed to provide a spring action to accommodate for variations in the width of the air gaps.

Abstract: The present invention pertains to a gas purging plug for metallurgical vessels with a gas connection pipe at the gas inlet-side, lower end.

Abstract: The present invention pertains to a pin-and-socket connector for accommodating and electrically contacting the strip conductors of a flat conductor flat cable with corresponding plug contacts via the intermediary of an electrical component.The component is connected directly to one of the strip conductors of the flat conductor flat cable.

Abstract: Lead frames for microchips and other integrated circuit dies are produced by a continuous manufacturing method and apparatus in which silver spot plating is done prior to etching away unwanted portions of the lead frame substrate. A flexible substrate of a metal alloy is fed continuously from a reel, then spot plated with silver, coated with a photosensitive material, and exposed to intensive light in an exposure chamber using a photoresist or masking tool of predetermined design. The exposed photosensitive material is developed chemically, etched in acid, and placed in a chemical solution to remove any remaining unwanted material. The strip is then dried, cut to predetermined lengths and boxed for shipment. If necessary, the strip is downset and taped before packaging. In a presently preferred process, the metal alloy substrate is 42 alloy (Fe+Ni), and the selective spot plating is silver 100 to 150 microinches thick.

Abstract: The present invention pertains to a gas purging plug with integrated electrode for use in electric-arc furnaces.

Abstract: A FRP laminate composed of synthetic resin material, which contains spheres, and short strands of chopped fibers mixed into the resin/sphere blend in criss-cross, hodge-podge fashion, the sphere members and high application pressure combining to force down any upstanding chopped fibers and to make the chopped fibers lie flat in the resin layer and to knock air out of the resin layer, said sphere members comprising a plurality of high density spheres. A method of making a FRP laminate for a boat hull or the like includes spraying into a mold a synthetic resin liquid containing spheres while simultaneously applying chopped glass fibers into the fan-shaped stream of resin/sphere blend with the chopped fibers being randomly distributed in the resin layer in a hodge-podge fashion.

Abstract: An easily-assembled, heat-resistant connector for releasably joining end portions of two capillary tubes in end-to-end fashion for use in chromatography without interrupting fluid flow or interfering with chromatographic results, comprises a cylindrical sleeve which has a bore which tapers toward a center point to form press-fit seals with the tips of two capillary tubes. A first ferrule is mounted on the end portion of a first capillary tube, and a second ferrule is mounted on the end portion of a second capillary tube. A jacket surrounds and contains the sleeve, and a first adjustment screw mounted on the jacket pushes against the first ferrule to deform the ferrule into sealing contact with the outside surface of the first capillary tube and with the inside surface of the sleeve. A second adjustment screw mounted on the jacket pushes against the second ferrule to deform the ferrule into sealing contact with the outside surface of the second capillary tube and with the inside surface of the sleeve.

Abstract: A saddle tee connector assembly for making a tee connection to a copper tube comprises a saddle tee connector with a bottom clamping portion, a top clamping portion with an outwardly extending boss which has a bore, an annular chamber in the bottom of the bore, a cutting pin positioned in the bore, and a drive nut which is rotated to move the cutting pin downwardly in the bore to cut a hole in the tube and is rotated in the opposite direction to retract the cutting pin from the hole in the tube. The drive nut and pin are removed to permit the attachment of a tube to the boss to form a tee connection. A method is provided for using the saddle tee connector assembly to make a tee connection to a tube.

Abstract: A ribbon cartridge for a printer is provided with a take-up arm that is thin enough to fit into an extremely tight space of the printer, and has a support stub which supports the lower edge of the ribbon, an upper guide finger which guides the upper edge of the ribbon, and a lower guide finger which guides the lower edge of the ribbon.

Abstract: A boat hull includes a stern section known as a transom which comprises an outer transom wall, an inner transom wall spaced apart from the outer transom wall, and a core of syntactic foam comprising a plurality of microspheres encapsulated in a resin inserted between the outer transom wall and the inner transom wall.

Abstract: Highly filled materials are disclosed. The material is formed from a composition of at least 4% by weight of a defined polar thermoplastic polymer, a plasticizer for the polymer and at least 90% by weight of an inorganic composition, including in elemental form. The compositions have a flexural modulus of less than 100 MPa. Preferably, the material provides attenuation against energy of greater than 0.1 keV that is equivalent to at least 0.1 mm of lead. The material may be used for containers, in apparel and other end-uses for protection against e.g. x-rays and gamma rays.

Abstract: A process and apparatus for the commercial sterilization of thin-walled, high-profile plastic containers, which are hermetically sealed with an easy-peel aluminum foil/plastic-coated lid stock material. The apparatus is a rack of molds, each mold having a recessed groove to support the lip of the plastic container and a mold lid having a rigid portion covering the lid and a resilient portion inside the rigid portion to permit the lid of the plastic container to expand in a controlled manner during sterilization. The rigid portion of the mold lid can be angled to fit the contour of the expanded container lid.

Abstract: A faucet comprises a base, a spout having a first free end portion for emitting fluid and a second end portion for insertion into a hole of the base, and a sealing and locking device formed at the second end portion. The sealing and locking device includes a tapered portion at the second end portion of the spout, the tapered portion having a tapered outer diameter that decreases toward the second end portion of the spout. The sealing and locking device may further include a groove formed in the spout at the second end portion, and an O-ring adapted to be seated in the groove. Alternatively, the sealing and locking device includes a groove formed in a spout, the groove having a tapered portion with a tapered outer diameter that increases toward the second end portion of the spout, and an O-ring adapted to be seated in the groove. In the alternative embodiment, the exterior surface of the spout at its second end portion, except at the tapered groove, may be straight and untapered.

Abstract: A two-phase mixture of at least two fluids which is supplied with subsonic velocity through associated feed lines (4, 3) is accelerated to sound velocity by means of a nozzle (2). Upon the exit from the narrowest cross-sectional area (6) of the nozzle (2) the two-phase mixture is expanded in an expansion chamber (10) to supersonic velocity. The two-phase mixture expanded to supersonic velocity is thereafter brought to ambient pressure substantially as a one-phase mixture after flowing off through a diffuser passage (9) by means of a shock wave built up in an outlet channel (8). The outlet channel (8) has a constant cross-sectional area the hydraulic diameter of which is as great as the hydraulic diameter of the narrowest cross-sectional area (6) of the nozzle (2) or amounts to up to the three-fold of this hydraulic diameter. An outlet (11) provided with a relief valve (22) is connected to the expansion chamber (10).

Abstract: A slitter machine for slitting a film sheet wound on a core in a roll to obtain desired widths of film sheet for laminating onto metallic substrates of semiconductor devices comprises a main frame, notches on the main frame for rotatably supporting the roll on the frame, a rotatable knife blade for slitting the roll sheet into a strip of desired width, a tiltable knife blade mounting plate on the frame for mounting the knife blade on the frame, guide tracks adjusting the lateral position of the knife blade to adjust the width of the strip being cut, an air cylinder for pressing the knife blade into the rolled sheet to cut the sheet into strips of the desired width, and a sensing roller for limiting the depth of the cut.