Abstract: Methods and apparatus for aiding a photographer in determining, coordinating and adjusting numerous variables which bear on the quality of a stereoscopic picture employing a lenticular screen. The variables may include, depending upon the photographic method employed and the scene to be photographed, the desired size of the stereoscopic picture, the resolving power and lenticule width of the lenticular screen, the number and size of two-dimensional picture negatives which are taken and included in the stereoscopic picture, the distance between adjacent camera vantage points from which the negatives are taken, the camera focal length, the distance from the camera to the nearest element or object of the photographed scene, the distance from the camera to the farthest element or object of the scene, and the distance from the camera to an element or object -- the "key subject matter" -- in the scene which is to lie in the plane of the stereoscopic picture.

Abstract: The invention relates to a process and an apparatus for the production of wound sandwich structures, wherein the inner shell, made of a galss-reinforced plastic, is prepared in a known way, then solid core elements are wound onto the inner shell, and finally an outer shell, made of a glass-reinforced plastic, is formed on the wound core. Thus rigid articles (e.g. containers), consisting of inner and outer shells of glass-reinforced plastic and a core of wound core elements, are obtained. The core elements are wound up by forwarding the individual elements directly one after another onto a thread which carries the core elements, presses them onto the rotating mandrel, and is also wound up, or by forming a flexible band by adhesion, from the core elements and the carrier thread or band, and this flexible band is wound up. The inner and outer shells, and the surface of the core material are prepared preferably on a conventional winding machine, provided with auxiliary equipments according to the invention.

Abstract: A method of producing a hard wearing bearing surface on a component such as a cylinder or cylinder liner, by pressing an accurately screened hard powder in liquid medium into engagement with the surface and on a helical path, the pressure and powder size being such that oil retaining micro-grooves are formed and also that a great number of powder particles, which particles virtually constitute the bearing surface, are embedded.

Abstract: An inexpensive, lightweight reflective panel for solar-thermal collector modules of the type including a parabolic reflector for reflecting incident solar radiation onto a fluid carrying conduit positioned along the focal axis of the reflector. A rigid, waterproof, honeycomb panel formed from paper and having a uniform thickness of parabolic shape supports a reflective material. Glass fiber cloth adhered to the outer panel surfaces adds to the panel's strength and rigidity. An adjustable support system suspends the reflective panel from the fluid carrying conduit and provides a means of adjusting panel curvature to precisely obtain the required parabolic shape.Methods of forming the panels are described which permit the panels to be formed at or near the site of their installation to obviate shipping problems and expense.

Abstract: Thermoplastic adhesive and coating compositions which comprise (A) about 1 to 99 percent by weight of thermoplastic segmented copolyester elastomer consisting essentially of a multiplicity of recurring short chain ester units and long chain ester units joined through ester linkages, said short chain ester units amounting to about 15 to 75 percent by weight of said copolyester and being derived from aromatic dicarboxylic acid such as terephthalic acid, or a mixture of terephthalic and isophthalic acids, and an organic diol such as butanediol, and said long chain ester units amounting to about 25 to 85 percent by weight of said copolyester and being derived from aromatic dicarboxylic acid such as terephthalic acid, or a mixture of terephthalic and isophthalic acids, and a long chain glycol such as polytetramethylene ether glycol, said copolyester having a melt index of less than about 150 and a melting point of at least about 125.degree.C.

Abstract: A method and apparatus for bonding at least two films of resinous material such as polyester films to one another wherein at least a portion of one surface of one polyester film is placed contiguous with at least a portion of one surface of the other polyester films adjacent thereto. At least one layer of resinous material such as a layer of polyester is placed adjacent each of the other surfaces of the polyester films to be bonded and opposite the contiguous portions of the surfaces. The contiguous portions of the polyester films to be bonded are compressed against one another by pressure applied to the two outermost layers of polyester. The temperature of the contiguous portions along their interface is raised at least to a bonding temperature of the polyester by energy transmitted through the layers of polyester on each side of the two polyester films.

Abstract: An apparatus for gluing a stack of aligned sheets into a pad or book with a molten adhesive, comprising means for clamping said sheets with the aligned edges to be glued facing downwardly, a crucible for adhesive, means for melting said adhesive in said crucible, a glue applicator roll dipping into the molten adhesive in said crucible and extending above said adhesive, and means for effecting relative movement between said clamping means and said crucible with said applicator roll, whereby said applicator roll applies adhesive to the aligned edges of said sheets. The crucible and applicator roll, preferably with an upstream air blower, are desirably positioned between a pair of parallel endless chains which are moved below the stationary sheets.

Abstract: Method and apparatus for binding a stack of sheets whereby a binding member including a substrate material having at least one strip of heat activated adhesive is employed to form the desired book-like assembly. The binding member includes a low tack adhesive material extending longitudinally along the central portion of the substrate material and a high tack material extending longitudinally adjacent the low tack material and on either side thereof on the substrate material. The stack of sheets is transported into engagement with the binding member, the member being thus deformed so the low tack adhesive material is in contact with one edge of the sheets of the stack and the high tack adhesive material is in contact with the outer sheets of the stack. Heat is applied to the adhesive to cause the high tack material and low tack material to adhere to the portions of the stack in contact therewith.

Abstract: Apparatus for applying a piece of adhesive strip to a stack of sheets having a thickness within one of several thickness ranges, the width of the adhesive strip to be applied being dependent on the thickness range to which the thickness of the stack of sheets corresponds. The apparatus includes a pair of strip guides and means, responsive to the thickness of the stack of sheets, for moving the strip guides to initial positions, said means including linkage means. The apparatus also includes: bipartite clamping means; and means, coupled to the linkage means, for moving the clamping means into engagement with the stack of sheets and for stressing play out of said linkage means, thereby moving the strip guides into one of a set of several sets of positions, each set corresponding to one of the thickness ranges. Each set of positions is suitable for supporting a different one of a plurality of adhesive strips, each strip having a different but standard size width.

Abstract: A poly(arylene sulfide) surface is pretreated by contacting this surface with an agent selected from the group consisting of specifically defined halogenated hydrocarbons which are either unsubstituted or substituted with a hydroxy group, organic acids and alkali metal hypohalogenites, with the additional provision that when the poly(arylene) sulfide surface consists of unfilled poly(arylene sulfide), the treating agent is selected from the halogenated hydrocarbons and the organic acids and when the poly(arylene sulfide) surface consists of fiberglass-filled poly(arylene sulfide), this surface is treated with an agent selected from the alkali metal hypohalogenites. The pretreated surface is adhesive-bonded to a solid surface resulting in a bond exhibiting a lap shear strength which is increased as compared to a bond involving the same materials without a pretreatment of the poly(arylene sulfide) surface.

Abstract: A one-part thixotropic contact adhesive composition comprises a polychloroprene in an organic liquid which is a solvent and/or dispersing medium for it, and from 1 to 10 parts by weight, per 100 parts by weight of the composition, of a thixotropic agent being a solid saturated hydroxy-carboxylic acid or a solid ester of a saturated hydroxy-carboxylic acid.

Abstract: An improvement in vacuum presses for mounting and laminating graphic arts objects such as photographs and the like, the improvement consisting of providing a platen assembly comprising a flexible metal platen that is supported only at its edges and is engaged and heated by a flexible heater unit.

Abstract: The present invention relates to a method of and apparatus for manufacturing a net of non-woven threads, in which first and second laps of parallel threads, are drawn off, respectively, from a fixed creel and a rotary creel with the first lap longitudinal and the second lap transverse and wound about the first lap. The threads of the second laps are severed at each of two opposed longitudinal edges of the first lap and the net formed by part at least of the longitudinal threads of the first lap and those pieces of the transverse threads of the second lap which are situated on one and the same side of the first lap is collected and stabilized, while there is effected relative running ahead of the longitudinal threads which increases progressively from one thread to the next in relation to one of said edges, from the latter up to the other edge.

Abstract: A process for metallizing a ceramic green sheet having via holes or recessed grooves formed therein by depositing a mask forming material over the green sheet, the mask forming material being non-wettable by a composition, either conductive or nonconductive, to be subsequently deposited in the via holes or recessed grooves. After the depositing step, a metal paste is spread or wiped into the vias and grooves and then the sheets are laminated and fired to form a multi-layer ceramic interconnection package whereby the mask forming material is volatized and eliminated from the structure without the necessity of removing the mask forming material in the conventional etching or peeling away methods.

Abstract: The invention relates to apparatus for pressing a moving web of material against a supporting surface, specially to press a web of corrugated cardboard against a heating part in a corrugated cardboard production system, comprising a stationary supporting surface over which the web of material is moved, also comprising press members acting in operating position via a press surface upon the web of material and adjustment means which transfer the press members from the operative position into an inoperative position and vice versa.

Abstract: A segmented thermoplastic copolyester containing intralinear long chain and short chain ester units is bonded to a fiber-forming condensation polymer or regenerated cellulose by reaction with a polyisocyanate reaction product, having an available isocyanato group content of at least 2 percent, at elevated temperature and/or elevated pressure.

Abstract: This invention relates to a method for obtaining improved adhesion in the preparation of polyester laminates by treating the surface with an isocyanate containing ethylenic unsaturation and then applying a polyester adhesive containing a peroxide curing agent and to the said laminates.

Abstract: A telephone service cable which runs from a distribution cable to a subscriber's premises or to a pay station is another link in a buried communications system having a water-resisting capability. A spirally quaded core comprised of individually insulated conductors is advanced through a bath of a flame-retardant, water-resistant composition prior to enclosing the core with a jacket. The interstices in the core and between the core and an inner jacket are caused to be filled with the composition which comprises a liquid system and a solid system. The liquid system includes a chlorinated paraffin while the solid system includes a polyvinyl chloride resin and a chlorinated polyethylene. An epoxy stabilizer and a phosphite stabilizer may be added to prevent thermal degradation of the filling composition.

Abstract: A circuit plane or "board" includes a plurality of optical-micro-circuit device sockets with optical interface windows around the periphery of each socket. Each socket is adapted to receive a wafer or like component which comprises an electrical micro-circuit having optical input and output devices at the periphery of which register with the interface windows of the socket. The windows are optically interconnected with optical interface windows of other sockets or with optical terminals along the edge of the "board" by means of optical fibers embedded in a potting material typically sandwiched between two thermally and electrically conductive plates. Operating power for the circuits is applied to the conductive plates to which the micro-circuits are electrically coupled. A plurality of circuit boards so formed can be stacked on one another and optically coupled by means of light transmitting end connectors including optical fibers therein to form a complete data processing system.

Abstract: Improved forming method permits a flat laminate panel comprising a thin, deep vacuum formed thermoplastic face surface member bonded to a rigid backing member to be bent sharply so as to form the sides and front of a cabinet, for example, in one integral piece. The bends are accommodated by removing material from the back of the panel so as to form V-grooves whose included angles are equal to the angle of bends desired. The grooves extend through the entire thickness of the backing member and a portion of the plastic layer. A small bead of hot melt adhesive placed in the groove serves to soften the plastic so it can be bent without cracking. The panel sections adjacent the V-grooves are then brought into contact and immediately and permanently bonded together by the adhesive, thus eliminating the need for additional bracing while the adhesive sets.