Abstract: An impregnating composition for warp free laminates, is made from the diluted reaction mixture of: a phenolic component selected from at least one of phenol, resol, xylenol, resorcinol, naphthol; alkyl substituted phenol, where alkyl contains from 4 to 13 carbon atoms; and aldehyde.

Abstract: A structural composite beam that extends along an arc is disclosed. The beam has a core in which web and flange portions are unitary and made by filament winding. A method is disclosed in which a plurality of these beams are made during a single layup, cure and cutting operation.

Abstract: A superimposed foil embossing method using both opaque foils and transparent pastel foils. A first flat stamping die transfers a first foil, which can be either an opaque foil or a transparent foil, from a first carrier ribbon to the paper stock. The first foil is transferred by the application of heat and pressure. A second flat stamping die transfers a transparent foil from a second carrier ribbon to the stock so that it is superimposed over the first foil. Since each foil is only transferred from the ribbon to the paper in the areas where the die touches the paper, the pastel foil can be applied directly to the paper and also superimposed over areas of the first foil. Thus, if the first foil is an opaque foil, the color combinations possible include the paper stock color, the first foil color, the altered color of the paper having the transparent foil thereon, and the altered color of the first foil with the transparent pastel foil embossed thereon.

Abstract: A display panel comprising a plurality of printing ink layers having the same patterns one another being formed on the surface of a transparent substrate by means of transferring operation and a semi-opaque layer existing among the printing ink layers adjacent to each other; a display panel obtained by forming a pattern involving arbitrary characters, figures or pictures on the surface of a substrate by means of transferring technique; and a process for forming such pattern.

Abstract: A reconstituted leather product and a method of manufacturing this reconstituted leather product is disclosed in which leather (preferably scrap leather) is ground or shredded into a fibrous state. The fibrous leather is mixed with a binder, such as natural rubber dissolved in an evaporatable solvent (e.g., naphtha), so as to form a paste-like mix. The mix is then extruded (or otherwise formed) into sheets or webs and is cured so as to drive off excess solvent. A reinforcing mesh web may be adhered to the back face of the sheet or may be sandwiched between layers of the fibrous leather and binder. The cured reconstituted leather may be finished to have any desired surface finish or color in a manner similar to real leather. The resulting reconstituted leather closely resembles real leather in feel, color, finish, odor, strength, flexibility, and appearance, but is of much lower cost.

Abstract: Prior art methods of transporting sheets of paper such as letterhead sheets through tractor-feed printers have included the use of glue, and of vacuum, to hold the sheet onto a carrier. (The carrier has a series of holes along each of its edges characteristic of the tractor-feed system.) Pockets formed by folding the carrier have also been proposed. Disclosed is an improved carrier where the pockets are formed simply and inexpensively by the double thickness band caused by the overlapping of pieces of the carrier. This manner of forming the pockets lends itself to the provision of an endless-loop type of carrier, since the final joint between pieces can be made after the carrier has been fed through the tractor rollers of a tractor-feed printer. The pieces of the carrier may be plastic or paper and may be disposable after use or re-usable depending on the type of adhesive used.

Abstract: The invention is directed to a process for printing floor tile. The transfer sheet containing the design to be placed upon the floor tile is utilized as the carrier for the floor tile as it passes through the processing operation. The floor tile is positioned upon the transfer sheet in register with the design on the transfer sheet. The tile is held in position on the transfer sheet by static electricity and is fed between laminated rolls which laminate the transfer sheet to the floor tile. Subsequent removal of the transfer sheet from the floor tile leaves the design of the transfer sheet on the surface of the floor tile.

Abstract: A copper-clad laminate having special utility in the production of high resolution printed circuit patterns by either subtractive or semi-additive processing is made by vapor depositing a film of zinc on a copper film on a silica-coated aluminum carrier sheet, vapor depositing a silica film on the resulting zinc-copper foil, bonding the resulting body to a substrate and then stripping the silica-coated aluminum carrier sheet from the copper-clad laminate.

Abstract: To insulate a window, the bottoms, the ends and a portion of the tops near the ends of a plurality of relatively-thick, relatively-stiff polyurethane strips are cemented to a flexible fabric by an elastomer. The maximum width of the polyurethane strips increases with their position along the fabric as the square root of a function of the stretching ability of the elastomeric cement and the radius from the center of the roller to the strip. That function includes the difference between the square of a first quantity and a second quantity, the first quantity being the sum of the radius of the particular rolled end and the stretching ability of the elastomer at the edge of the strip and the second quantity being the radius squared. The uppermost polyurethane strip forms a sealing engagement with the sill, the two sides of the backing and the ends of the strips ride in sealing tracks and the bottom strip rests on the sill to form a compartment with the window.

Abstract: A method of making a sign is described which comprises taking a transfer material and a temporary support sheet, the transfer material comprising a transparent or translucent carrier sheet bearing on one side a plurality of transferable indicia, which are either sufficiently adhesive as such to enable their transfer to the support sheet or which bear a layer of adhesive on their face remote from the carrier sheet, or which are non adhesive but transferable by virtue of a coating of adhesive on the temporary support sheet, the adhesive if present being adapted to adhere the indicia to the temporary support sheet more strongly than they adhere to the carrier sheet, and wherein the material of the indicia is adhesive under the application of heat and pressure, transferring indicia from the transfer material to the temporary support sheet in the desired order to build up the desired legend for the sign, and applying the transferred indicia under heat and pressure to the surface of a transparent or translucent she

Abstract: The invention relates to a method and to an apparatus for the production of stamp or photo album leaves with slip-in pockets for the stamps. Two transparent sheets in web form are linearly bonded to one another, and slip-in pockets are stamped out of the bonded sheet material to form double sheet pockets joined along a linear edge. The slip-in pockets are stamped out of the double sheet web by a stamping tool assembly in a predetermined arrangement corresponding to the pocket placement intended for the album leaf, and holds them firmly in this arrangement by a partial vacuum. In the meantime, an adhesive has been applied to the album leaf in the places provided for the slip-in pockets. The album leaf is then brought into contact with the slip-in pockets held fast by partial vacuum on the stamping tool so that the pockets are secured to the album leaf.

Abstract: A flat-panel display is constructed by sealing a metal flange to a frame on a glass pane, then mounting an electrode structure against the pane within the frame, then placing an impervious malleable sheet over the electrode structure, then sealing the sheet to the flange, and then pumping air from the space between the sheet and the glass pane, and backfilling as required.

Abstract: A method of making flying surfaces is disclosed which employs a panel of foam plastic to form a one piece frame. A plurality of apertures are die cut in the panel to establish the desired interior shape of the frame. One side of the panel is coated with an adhesive. A sheet of thin plastic film material is applied over the adhesive to cover the surface of the panel. Shapes in the form of the desired outline of the flying surface are cut out of the panel. The size of the panel is chosen so that a multitude of flying surfaces may be produced simultaneously.

Abstract: A large poster apparatus for a back-lighted signboard and a method of constructing same from a plurality of smaller poster sections, including improving the translucent quality of the poster material, aligning respective adjacent sections for exact image continuity, laminating a clear film over a first poster layer, laminating a second poster layer over the clear film, and applying heat and pressure to create a composite laminated poster apparatus having registered images throughout.

Abstract: Composite building structures, such as foam core panels or the like. The panels comprise one or more foam core sections, preferably cores which include fire retardant additives. The exterior sheathing for the foam cores is a multiple laminate containing an inorganic filler material, such as glass fibers or ground carbonaceous or siliceous material; the filler is bound in place by a fire retardant, furan-based resin. The method includes forming a plurality of layers by depositing the resin and the filler alternately in a mold, thereafter placing boards or like core structures thereover and covering the exposed surfaces by multi-ply laminates of the fire retardant furan-based resin containing the glass fiber, carbonaceous or siliceous fillers. The method is also applicable to cover existing foam core installations used in building structures.

Abstract: A laminated fiber optic ribbon cable, and method of manufacturing same, is disclosed. The cable comprises top and bottom sheath layers, at least two elongate reinforcement members each located along respective sides of the bottom sheath layer, and a plurality of spaced apart and parallel waveguides positioned upon the bottom sheath layer between the two reinforcement members. Subsequent to the introduction of insulary filler material between the sheath layers, longitudinal edge portions of the sheath layers are bonded together at each side of the cable, with longitudinal gaps being thereby defined along each side of the cable between the bonded sheath edge portions and the two cable reinforcement members. Preparation of the cable for termination may thereby be effectuated by cutting into the longitudinal gaps and peeling back the top sheath layer to access the waveguides and strength members therebeneath.

Abstract: A carrier is coated with a suitable adhesive. That surface of the adhesive which is to be placed in contact with the support for the membrane is united with an assembly consisting of a film, and a sheet of material which does not bond to the film. The sheet is impermeable to the hot adhesive, and both film and sheet have perforations which are in substantial alignment. The sheet is positioned on the outside of the assembly, facing toward the support. The adhesive is exposed through the aligned perforations and provides continuity of material throughout the membrane. The imperforated portions of film and sheet can slide relative to each other, thus providing a so-called "limited-slip sheet" for the membrane. Preferably, the impermeable sheet is preperforated, while the perforations in the film are created by the heat of the adhesive, as both film and sheet are applied simultaneously with the coatings of the carrier by the adhesive.

Abstract: A solar panel in which interconnected photovoltaic cells are maintained in light-receiving position by electrically conductive clips secured to the base of the panel. When the cells and clips are encapsulated in a protective resin, a vacuum is drawn during encapsulation to remove air bubbles trapped beneath the cells.

Abstract: The photovoltaic cells (6) are retained and protected by a transparent elastomer layer (12) extruded when hot prior to vulcanization and applied against the cells with a slight pressure to cause it to go into the spaces between cells, and vulcanized by heating, for example at 110.degree. C. or at 180.degree. C., thanks to the presence of incorporated peroxides.Application in the production of electricity from solar energy.

Abstract: A veneer sheet and an adhesive coated sheet are placed on a piling table. Two vertically arranged conveyors each independently conveys one veneer sheet and stops at predetermined position, pressing member presses two sheets simultaneously vertically downwards onto the piling table where the sheets are placed.

Abstract: An improved approach to printshop paste-up operations involves a vacuum table having a grid of closely spaced air passage apertures in the top surface, a mounting member for receiving sheets carrying text and illustrative material comprising a sheet apertured to match the grid of said top surface having an imperforated border facilitating vacuum positioning on said top surfaces with apertures aligned, arranging and rearranging sheets of text and illustrative material on said mounting member while preventing unintended movement thereof by the vacuum effect at apertures covered thereby until desired composition is achieved, and then bonding a transparent plastic sheet over the mounting member and arranged sheets of text and illustrative material to provide an assemblage which is durable for transport, printshop use and extended storage.

Abstract: Several flat cable embodiments (10, 10',10",10"',10"") are disclosed, as are methods and apparatus (30) for the selective manufacture and connectorization of same. In accordance with one preferred flat cable embodiment (10), adapted for telephone under carpet applications, two precisely offset arrays of rectangularly shaped conductors (13, 14) are separated by a center film (16), with each array being adhesively bonded through an associated adhesive coating (21 or 22) to only the respectively adjacent one of two outer films (18 or 19).

Abstract: Gummed labels having outlines corresponding to top and bottom views of integrated circuit packages include numbered lead locations as seen from both the top and bottom of a particular integrated circuit package. A simplified schematic diagram located on the portion of a label corresponding to the integrated circuit package body indicates connection of an integrated circuit to the respective leads. Part numbers and brief descriptions and commercial integrated circuits are printed on the labels. A plurality of unused labels are removably attached to a backing sheet, and are peeled off and placed on a working sheet to enable an engineer or technician to easily make diagrams or printed circuit board layouts without having to refer to a manufacturer's catalog.

Abstract: A laminated spacer plate (10) for engines, pumps and the like comprises a plurality of metallic sheets (11-14), each having openings (15,16,17,24,40) preformed therethrough and secured together. The preforming of the openings through the individual sheets facilitates intercommunication of certain of the openings with passages formed within the spacer plate and eliminates the need for costly machining and related manufacturing operations normally required for the fabrication of a one-piece spacer plate.

Abstract: A diaper tape tab includes a backing web having a first pattern of adhesive on one surface thereof and a release coating covering a portion of the other surface with a tape segment secured to the release coating and the exposed portion of the other surface by a second pattern of adhesive. The two adhesive patterns are spaced parallel strips of adhesive that are spaced from each other by a dimension which is less than the width of the strips and the outside strips are spaced inwardly of the lateral edges so that the adhesive is not exposed during storage.

Abstract: A method for manufacturing model statues or profile pictures wherein a base shape or body and various components are made from a flexible material, such as synthetic resins, clay, gypsum, wood or rubber. The various components are glued in place on the body. A thin covering of cloth or paper is then placed over the body with the glued components to apply an even finish to the surface of the body.

Abstract: Disclosed is a coated sheet material comprising a release medium having thereon a gluable coating for use in making a decorative heat-and-pressure consolidated laminate. The gluable coating is transferred during the consolidation step from the release medium to the back side of the laminate, and the laminate can then be glued to a reinforcing substrate with conventional glues and without sanding the back of the laminate. The transferable gluable coating comprises a linear copolymer of (A) maleic anhydride or maleic acid or maleic acid salt and (B) ethylene or a vinyl monomer having a side chain of an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.

Abstract: A weighted belt for securing to the leg of a swimmer for exercising purposes. The belt is constructed using an elastic latex strip. Lead weights are positioned on the strip, covered by a layer of gauze, which is then covered by the latex material to provide a sealed one-piece structure. The weights have holes therein such that the latex covering material fills the holes to firmly secure the weights to the belt. The ends of the belt are secured by molded buttons on one end engaging openings in the other end.

Abstract: Personal identification documents are fabricated by liquid developing an electrostatic image on a photoconductive insulating member to form a high resolution toner image which includes a visually verifiable feature of the authorized document holder and thermally transferring such image from the photoconductor to a core substrate having general authenticating data or to a cover sheet which is subsequently laminated to such a core substrate.

Abstract: An assembly comprising a plurality of solar cells arrayed on and adhesively bonded to a sheet of non-woven heat-actuatable fabric is provided which offers significant advantages in the fabrication of solar cell panels, particularly fabrication of panels by vacuum lamination techniques.

Abstract: Two sheets of an air impermeable plastic coated fabric are placed horizontally, with a core of a resilient open cell foam material positioned between the two sheets. Heated platens are applied to this layup, followed by applying a vacuum to the interior, cooling the assembly, and then moderately pressurizing the then bonded assembly.

Abstract: Method of constructing a large poster for a back-lighted signboard from a plurality of smaller poster sections including improving the translucent quality of the poster material, aligning respective adjacent sections for exact image continuity, laminating a clear film over a first poster layer, laminating a second poster layer over the clear film, and applying heat and pressure to create a composite laminated poster having registered images throughout.

Abstract: A prefabricated laminating packet is provided having two laminating sheets thereon with a pull tab detachably attached thereto adapted for use in laminating machines. In accordance with a preferred embodiment of the invention, the pull tab has a series of notches therein which serve to locate the packet within a laminating machine and also which enable the machine to work only with packets designed for that particular machine.

Abstract: A flexible carpet web having a plurality of spaced apart pressure sensitive adhesive segments disposed in a patterned relationship on the backing thereof, and in which the same are preferably patterned according to certain given parameters involving the relation of the total area of the adhesive segments to the weight and/or the area of the carpet web, the spacing between adhesive segment centers as related to the area of the adhesive segments, and/or the spacing apart of the adhesive segments in relation to the configuration thereof; and a method of manufacture of a carpet web having adhesive segments applied to the backing thereof for facile installation thereof.

Abstract: A process for mounting electronic parts of very small size on electronic circuit boards or substrates, in which the substrates are maintained in predetermined relative positions, and a dispenser unit dispensing a bonding material for bonding the electronic parts to each of the substrates, a mounting unit mounting the electronic parts on each of the substrates, and/or an inspecting unit inspecting the position and/or the electrical properties of the electronic parts mounted on each of the substrates are disposed in the same relative positions as those of the substrates to carry out their individual functions on the associated substrates, so that the electronic parts can be efficiently and rationally mounted on the substrates.

Abstract: A protective covering for the protection of surface seals against mechanical damage in building constructions and other civil engineering constructions which comprises a composite of an elastic, waterproof thermoplastic synthetic resin film sheet and/or synthetic resin layer and a lattice-like fabric having knot couplings or points of intersection of the threads that yield under the effect of a load.

Abstract: A method for making a multi-chambered flotation bag for helicopters or the like comprises forming two outer panels and at least one internal panel to substantially identical contour from flat/rubberized fabric sheet, forming at least two internal transverse wall members formed from flat rubberized fabric sheet, disposing adhesion strips for tapes along selected areas adjacent the peripheries of selected panels and wall members, and adhering the panels and wall members together to form the flotation bag structure.

Abstract: Improved wire reinforced paper products are disclosed in which a plurality of parallel spaced wires serve to strengthen and reinforce the paper structure. The improved paper structure includes a first paper layer having a plurality of parallel spaced channels formed on the surface of one face, a plurality of wires, and a second paper layer. The spaced channels are of a depth less than the thickness of the first paper layer. The plurality of wires are set in the channels of the first paper layer, and the second paper layer is adhesively secured to the surface of the first paper layer which has the channels formed thereon to firmly hold the plurality of wires in place. A method of manufacturing such wire reinforced paper products is also disclosed.

Abstract: This invention relates to press polishing transparencies for lightweight aircraft comprising at least one exterior sheet of acrylic resin involving the use of a polycarbonate pressing plate against the acrylic resin sheet. Both the polycarbonate pressing plate and as many sheets of acrylic resin as are included in the laminate may be press polished while flat by pressurized engagement against a smoothly surfaced flat glass pressing mold. Then, the polycarbonate pressing plate and as many sheets of acrylic resin as are included in the transparency are sag bent to conforming shapes with optional vacuum forming. The polycarbonate pressing plate so shaped is used directly against an acrylic resin surface without any parting material therebetween to press polish the outward facing surface of the acrylic resin sheet(s) so shaped and simultaneously laminate the shaped acrylic resin sheets when the latter are assembled with one or more layers of flexible interlayer material.

Abstract: A method characterized by the steps of positioning a plurality of uniformly dimensioned photovoltaic cells in registered relation with a plurality of openings formed in a planar tool for affording access to the P contact surface of each of the cells, connecting the N contact surface of alternate cells to the P contact surface of the cells interposed therebetween, removing therefrom residue of solder flux, applying to the N contact surfaces of the cells a transparent adhesive, placing a common transparent cover plate in engaged relation with the adhesive, placing a film over the circular openings for hermetically sealing the openings, and establishing a vacuum between the film and the cover plate for thus simultaneously forcing the cells into vacuum bonded relation with the cover plate.

Abstract: A substrate to be laminated is passed from a feed and brush table through an adhesive spreader, which spreader applies a pattern of adhesive along the top and bottom surfaces of the substrate. An index table, having a plurality of supporting rollers, supports a bottom laminate to be adhered to the bottom of the substrate at a predetermined indexed location. The substrate is transported onto the indexing table to a predetermined indexed location while being supported along its longitudinal edges by cone-shaped rollers to maintain undisturbed the pattern of adhesive. At the indexed location, the substrate drops onto the underlying laminate in predetermined relationship thereto. A top laminate to be adhered to the top surface of the substrate is positionally indexed on the index table and lowered onto the substrate.

Abstract: Two sheets of an air impermeable plastic coated fabric are placed horizontally, with a core of a resilient open cell foam material positioned between the two sheets. Heated platens are applied to this layup, followed by applying a vacuum to the interior, cooling the assembly, and then moderately pressurizing the then bonded assembly.

Abstract: A flexible, self-biasing switching element is disclosed herein for closing a circuit by flexing the element from an initial non-contacting position to a second contacting position and for opening the circuit by releasing the element and permitting it to return to a non-contacting position from the contacting position. The element includes a flexible non-conductive substrate having on one side thereof a plurality of spaced conductive contacts or areas. A two-sided pressure sensitive adhesive film for mounting the element is die cut and applied to the substrate in a manner so as to surround the conductive contact areas. The adhesive film provides an insulating medium between the contact points so as to prevent transmission of current between the contact points.

Abstract: The laminate includes a partially cured, flexible acrylic face sheet having a primer layer on one surface thereof bonded to a binder layer having a layer of reflective glass beads embedded therein and protruding therefrom and a sealer layer on the exposed surfaces of the glass beads, the laminate being completed with a spacer layer bonded to the sealer layer and having a reflective mirror-like thin metal coating on the outer surface thereof. The binder layer, sealer layer and spacer layer, or films are all made from basically the same uncured polyvinyl butyral material. The method of forming the acrylic face layer, the use of soft rubber pressure rolls in bonding a glass bead carrying partial laminate to a preformed spacer film, and the method of making the laminate of the invention and the compositions used therein.

Abstract: A web with overlays for use in the document presentation device of a photographic copying machine has several sheet-like sections with overlapping portions which are separably coupled to each other by snap fasteners and carry overlays which are welded thereto by the application of heat and pressure. The overlays are applied to those sides of the sections which are coated with layers of photographic emulsion.

Abstract: At least one thermoplastic sheet is interposed between a pair of transparent thermoplastic cover sheets with a photograph interposed between the cover sheet and the thermoplastic sheet. The sheet assembly together with the photograph is pressed between a pair of flat electrodes of a high-frequency dielectric heating device. Then, the assembly is subjected to high-frequency dielectric heating.

Abstract: Improvements are disclosed in the conventional process for the laminated packaging of etched circuitry consisting of:(1) A unitized form tool which is produced by photomasking a metal plate, with the same pattern master transparency that is used for producing the photoetched circuitry, followed by chemical milling of the exposed areas to a depth equal to the thickness of the circuitry,(2) the manufacturer's low pressure dwell cycle in the press for prepreg containing epoxy resin or polyimide resin is for either resin changed to 210.+-. 15 secs. at 10.+-. 1 psi and 340.degree. F.

Abstract: A water bed mattress comprised of upper and lower flexible sheets which are provided with peripherally extending downwardly and upwardly struck flaps, respectively, at their outer peripheral ends. These flaps are sealed to each other in order to form a completely enclosed mattress. A tapered, angularly struck inner peripheral wall extends effectively between the upper and lower walls of the water bed mattress in such manner that the upper end of the inner peripheral wall extends to the outer peripheral margin of the upper wall and the lower end of the inner peripheral wall terminates inwardly of the outer peripheral margin of the lower wall. In this way, the inner peripheral wall operates in conjunction with the upper wall in order to form an inner water chamber which is essentially coextensive with the entire upper surface of the upper wall. An air chamber is formed by the other side of the inner peripheral wall, the outer wall and the lower wall.

Abstract: There is described a solar cell panel consisting of an outer rigid transparent faceply of glass or plastic material to which are applied at least two layers of plastic such as polyvinyl butyral between which are positioned a plurality of solar cell wafers. A thin flexible film of polyethylene terephthalate forms the other outer surface of the panel. The panel is manufactured by laminating the materials together and allowing the margins of the plastic film to extend beyond the polyvinyl butyral layers so that the film can be brought into direct contact and sealed to a rigid base plate, forming a fully encapsulating structure. The assembled structure is then evacuated to withdraw air and to squeeze the layers together to promote adhesion. The evacuated laminated structure is then placed in an oven for applying heat and pressure to the laminated structure for permanent bonding. After cooling, excess film is trimmed from around the edges of the rigid face plate.

Abstract: The disclosure concerns a correction label applying device for a portable label printing machine, which is used to correct the characters printed on price tags. The correction label applying device is detachably secured to the body of the portable label printing machine. The price tag holding device of the label applying device is provided with adjusting means in which the positions of stoppers which receive the tip edge portion of an inserted price tag and the positions of a pair of guides which guide both the side edges of the inserted price tag can be changed. A leaf spring gives elastic force to the price tag holder.