Abstract: A process provides an improved seat cushion for use in upholstered chairs or the like having a smooth, uniform shape and which eliminates unsightly underlines. A thick foam block is attached to a thin, rigid base and the assembly is placed in a mold whereby a thin foam cover is adhered to the foam block and to the outer edges of the base to produce a precisely contoured cushion which can be upholstered and fitted into a desired chair frame.

Abstract: In a coating machine for coating of strip with a lining which is wider than the strip, a method and a device for filling up the space between the strip and the outer edges of the lining with edge strip, wherein the edge strip is passed inside a bent and folded transport channel, a first bent part of which coincides with the longitudinal direction of the strip.

Abstract: A veneer profile wrapping process employs a water-base polyvinylacetate glue system which is activated before application with an acid catalyst. The glue is applied to the veneer by a roller applicator. The veneer is transported on a vacuum belt which prevents the veneer from warping while the glue is dried with fans and infrared radiation. The process employs a porous substrate, such as particle board, which is heated by infrared radiation on all sides. Polyvinylacetate glue is applied to the surface of the substrate, which will be wrapped with veneer and the heat of the substrate plus additional infrared radiation and fans evaporates and dries the glue. The glue on the substrate is dried for approximately 60 to 90 seconds and on the veneer for approximately 10-15 seconds on cross feed drying lines. The veneer is inverted on a side belt changer and forced into intimate contact with the substrate by heated metal rollers.

Abstract: A method and apparatus for forming a plastic film-protected external siding board in a molding press having an upper normally closed heating box open at its lower end, and a support system below the upper box which supports a board core with a plastic film disposed over it to project beyond its side and end edges. The upper box and film are brought into engagement to close the heating chamber with the film which is then billowed upwardly in the heating chamber to prevent it from sagging while heat is applied to raise the film to molding temperature. A differential pressure is then applied to the film to mold it to the core.

Abstract: To apply a reinforcing element (9) only at the position of an index tab (7) on stock material, in which the position of the index tab, for example alphabetically, shifts from stock material to stock material, the stock material (2) is passed through a groove (27, 27a . . . 27f) extending axially along a cylinder or drum (22), the reinforcements being derived upon cutting a ribbon (15) which is folded longitudinally, and inserted into a groove (27e) of the cylinder while the reinforcement at the opposite side of the cylinder is being applied on the stock material, slid into the groove by a transport system. For application, heated tines press, from the top and bottom, against the reinforcement, by passing through circumferential grooves (69) of the drum or cylinder (22). A movable stop system (17) longitudinally positions the stock material (2) for staggered application of the reinforcements.

Abstract: A device and method for applying a length of pressure-sensitive adhesive tape to an object that is moved along a path past the device is described. The device includes a frame and a mechanism for applying the length of tape to the periphery of the object that is attached to the frame. The mechanism for applying the length of tape is movable between a first tape dispensing position and a second tape dispensing position and wherein the mechanism dispenses the tape along a forward and a rearward portion of the object while in the first position and dispenses tape at the second position between the forward and rearward portions of the object. A retaining mechanism restricts movement of the means for applying toward the object while in the second position.

Abstract: An apparatus and method for taping closed the open edge of a composite newspaper is provided which includes a tape applicator for applying a portion of tape to one side of a newspaper, and a moving member presenting a surface moving downstream with the newspaper but at a greater speed relative thereto, whereby a remainder portion of the tape not adhered to the one side may be wrapped around the open end by temporarily adhering a portion of the remainder of the tape to the moving surface and transferring the tape thus temporarily adhered from the moving surface to the other side of the newspaper as the moving surface passes thereby in close adjacency.

Abstract: A controlled bladder wrap tool system and method are disclosed for edge wrapping a substrate in a tool with consistent process control. An expandable bladder or bladder diaphragm is mounted in the tool adjacent a cavity where it expands when inflated to fill the cavity and to bend, fold or wrap an overhanging portion of pliable material onto a substrate which are mounted in the tool.

Abstract: The outer surface of the base of a heated C channel is brought to bear against the surface of a laminate to be bent about and adhered to the curved edge of a substrate by pivoting a frame pivotally attached to a substrate supporting platform. A torque tube supports the C channel to inhibit bending and twisting of the C channel. A plurality of pairs of pneumatic cylinders extend from the frame to urge the torque tube and attached C channel toward the curved edge and to maintain the base of the C channel in progressive tangential contact with the point of attachment of the laminate to the curved edge while minimizing sliding movement between the base of the C channel and the laminate.

Abstract: Apparatus is provided for forming an envelope capable of containing sheet material therein having a width equal to the width of the envelope by performing the steps of: feeding a sheet having a width and a length from a tray in a predetermined direction; folding the sheet across its width into a single fold to form first and second flaps, each flap having a width equal to the width of the sheet; pressing the first and second flaps together; and applying an adhesive tape over ends of the sheet to secure the first and second flaps together to form an envelope having an internal width at least the same as the width of the sheet, the adhesive tape completely forming the ends of the envelope.

Abstract: In an improved embodiment, film cassettes comprising a substantially cylindrical casing, a film mouth of an upper lip and lower lip extending over the width of the casing, a film spool and end caps, the upper lip and lower lip of the film mouth being provided with sealing strips, contain the sealing strips for the lower lip bonded to the metal in such a way that the edge zones of the sealing strip on the narrow sides and the edge zones of the sealing strip on the longitudinal side are completely bonded to the metal on the lower lip while the edge zone of the sealing strip on the longitudinal side is completely or partly bonded to the metal inside the cassette and all or part of the inner region of the surface of the sealing strip is not bonded to the metal, so that 10 to 60% of the total surface area of the sealing strip is not bonded to the metal strip.

Abstract: An adjustable seat assembly bladder for altering the surface contour of a seat and an associated bladder sealing method is provided. The seat assembly bladder comprises a pair of inflatable chambers, each having inner and outer chamber walls. At least a portion of the inner walls of the chambers are joined and an opening is provided at a point at which such walls are joined to establish fluid communications between the chambers. The walls of the chambers are fabricated from a laminated material having a plurality of layers, and air or gas is prevented from escaping through the laminated inner walls by sealing selected edge portions of the inner walls.

Abstract: A bundling tape has two rows of perforations extending from one end of the tape to the other; the perforations are arranged inward of and substantially parallel to the edges. A first band is formed between one edge and a first row of perforations, and a second band is formed between the other edge and the second row or perforations; between the two rows of perforations is a center band tear strip. The bands have co-planar upper and lower surfaces. Adhesive is applied only to the bottom surfaces of the first and second band; there is no adhesive on the center band. Bundles of material, such as wallboard, are fastened together by adhering the bottom surface of the first band to the uppermost sheet of material, and by adhering the bottom portion of the second band to the lowermost sheet.

Abstract: An improvement in a process for manufacture of an article comprising a core body covered with an embossed flexible plastic sheet employing an apparatus which comprises a male mold having a protruded portion and a female mold comprising a vacuum chamber and a depressed portion arranged thereon is disclosed. The apparatus is characteristic in that an embossed porous bottom surface is provided in the depressed portion and passages of pressurized gas are arranged on the wall of the depressed portion. An edge or rim of a reverse surface of the core body is neatly covered with an embossed plastic sheet by means fo the passage of pressurized gas attached to the female mold in the process of the manufacture of the covered article.

Abstract: Device for applying a protective film to a board consisting of two flat cover panels (2 and 3), coupled by partitions (4) integral with the panels, forming longitudinal cavities (5) comprising means for depositing a film of flexible material (7) on a first surface according to the longest dimensions of the board, so as to form a fold (71) at least over one of the ends onto which the cavities (5) open so as to cover the cavities with the fold.

Abstract: A flexible, thermoformable sheet material is bonded to a three-dimensional substrate to form a protective and decorative surface having the appearance of a basecoat-clearcoat automotive finish by a method which includes sequentially thermoforming a thermoplastic paint-coated basecoat sheet and a thermoplastic clearcoat sheet onto the substrate.

Abstract: A fiber wallboard, or similar rigid or non-rigid substrate, is directed via a conveyor through a roll coater for providing an adhesive layer on one side of the substrate. Packages of continuous strands, such as textile yarns, are supported on a yarn creel, and drawn through expansion combs and underneath a nip roll for being press rolled into the adhesive coating layer. The pattern of lateral yarn separation established with the expansion combs creates a particular design on the finished face of the substrate, and may be varied. The substrate with applied strands is dried and trimmed. Marginal edge yarns are particularly located relative the substrate edges so that yarn gaps surround seams between adjacent panel substrates. Seaming tape with additional textile yarns supported thereon may be fitted in the gaps to hide such seams.

Abstract: Disclosed herein is a method of producing a trim board, which comprises by steps: (a) hot-pressing trimming and piercing a resin-impregnated substrate at the same time to produce a shaped substrate; (b) laying an outer skin member onto one surface of the shaped substrate with an interposal of a hot-melt sheet therebetween; (c) pressing the outer skin member against the shaped substrate while the shaped substrate is still hot, thereby to produce a skin covered unfinished trim board; (d) trimming and piercing the outer skin member at portions which correspond to the portions of the shaped substrate at which the trimming and piercing have been carried out at the step (a), the step (d) being so made that a peripheral portion of the outer skin member at which the trimming and piercing have been effected protrudes by a certain degree beyond a peripheral edge of the shaped substrate at which the trimming and piercing have been effected; and (e) turning back the protruding peripheral portion of the outer skin member

Abstract: A process for book binding in which a block of pages, one of whose sides constitutes a book spine, is adhered to a book cover through the applicaiton of a polyurethane hot melt adhesive to the book cover and not to the spine, together with parallel side strips of adhesive.

Abstract: A method of producing a laminated panel having a backside formed of a normally rigid substrate, such as a polymer/filler composition, in an essentially self-supporting thickness of typically between 1 and 10 mm and a frontside formed of a differentially segmented cover layer, e.g. having segments of differing materials and/or colors, bonded to said substrate by laminatingly interconnecting, typically at elevated temperatures and pressures, a layer of said substrate in a moldable, e.g.

Abstract: Cover folders for permanently binding a stack of paper sheets without the use of fasteners. The cover folder has a binder spline which contains a quick drying adhesive which is protected by a removable protective film. The film is removed just prior to use to expose the adhesive. The cover folder allows for quick permanent binding of the stack of paper sheets which are pressed into contact with the adhesive. In alternative embodiments the adhesive may be applied directly to the binder spline from a dispenser and the stack of sheets then inserted in the spline. The dispenser may be in the form of a squeezable tube or pouch positioned in the binder spline. As the tube or pouch is pulled it ruptures, releasing adhesive into the spline channel.

Abstract: An upholstery wrapping apparatus and method using a mold having a flexible lip around the open top of the mold cavity so that as a substrate and covering therefore are pushed down into the cavity, the lip deflects and then snaps back to force the flexible margin of the upholstery to wrap around to the back side of the substrate.

Abstract: Cover folders for permanently binding a stack of paper sheets without the use of fasteners. The cover folder has a binder spline which contains a quick drying adhesive which is protected by a removable protective film. The film is removed just prior to use to expose the adhesive. The cover folder allows for quick permanent binding of the stack of paper sheets which are pressed into contact with the adhesive. In alternative embodiments the adhesive may be applied directly to the binder spline from a dispenser and the stack of sheets then inserted in the spline.

Abstract: A method of manufacturing a decorative automobile roof cap by forming a flat composite of a thermoplastic cover member laminated to a core layer foam sheet, thermoforming the composite to the desired shape and forming the edges of the roof cap by removing a portion of the core layer from the cover member and then wrapping the excess cover member around the edges of the core layer and securing it to the underside of the core layer to form an edge covered with the cover member.

Abstract: A laminated continuous sheet which, when cut, forms individual disposable diapers is moved at high speed in the direction of the length thereof, whereby in an air zone of predetermined thickness disposed on at least a predetermined surface of the laminated continuous sheet, there is produced with the travel of the laminated continuous sheet an air flow having a velocity gradient such that the speed of the air flow increases as the predetermined surface is approached. Baby powder is fed at a position within the air zone of predetermined thickness so that it contacts the air zone. By utilizing a decreasing-pressure phenomenon produced by the air flow having a velocity gradient described above in which the pressure decrease as the predetermined surface of the laminated continuous sheet is approached, baby powder is caused to adhere to the predetermined surface as it is drawn toward the predetermined surface of the laminated continuous sheet.

Abstract: This invention presents new water-based adhesives suitable for use in thermoforming lamination systems. More particularly, this invention presents water-based adhesive-forming compositions comprising an aromatic polyurethane in water dispersion or emulsion and a compatible cross-linking agent; also includable in the compositions are thickening agents and pigments. These new adhesives, it has been found, exhibit bonding strengths and temperature resistance far superior to the solvent and water-based adhesives currently used in industrial applications, and are useful in thermoforming lamination processes. Also disclosed is a one-step thermoform lamination edge-folding process using the adhesive.

Abstract: A method of forming an automotive seat, which basically comprises the steps of bonding a covering member to the upper surface of a foam cushion body, applying a pressure to a part of the lateral wall of the cushion body together with the corresponding part of the covering member, using a horizontally pressing means, so that the pressurized part of the covering member is inserted into and bonded in the lateral wall of the cushion body. In this way, a decorative deep groove is formed at the lateral portions of the seat.

Abstract: A method of applying a prepainted carrier film to an automobile body part in a vacuum thermoforming process. The prepainted carrier film has a top surface painted by a color coat formulation containing flakes and then coated with a layer of clear coat having a thickness of no less than 15 microns. The prepainted carrier film is heated and stretched in a vacuum thermoforming process and then assembled to a substrate for an automobile body part by adhesive means. The clear coat layer retains substantially the same gloss and color appearance of the stretched prepainted carrier film as prior to such stretch.

Abstract: A multicolored foam product and a method for the preparation thereof. Heat-plastified foamable gel of a thermoplastic resin or resins containing blowing agents are combined with different coloring materials added sequentially and extruded through an orifice of a die which is extended in length to facilitate laminar flow in the resin. This resin is expanded to form a multicolored layered foam product, such as multicolored foam planking, in a single extrusion. Multicolored foam planking produced is suitable for use as the body material for surfboards, body boards, and other recreational products.

Abstract: An apparatus which adhesively binds a set of sheets by applying a strip having an adhesive on one surface thereof to the spine of the set. The strip is supported on a heated platen which softens the adhesive. The spine of the set of copy sheets is pressed into the adhesive on the strip. The depth of penetration of the spine into the adhesive is controlled so as to form a layer of adhesive between the spine and the strip having a predetermined thickness.

Abstract: A method of applying a prepainted carrier film to an automobile body part in a vacuum thermoforming process. The prepainted carrier film has a top surface painted by a color coat formulation not containing any flakes and then coated with a layer of clear coat having a thickness of no less than 10 microns. The prepainted carrier film is heated and stretched in a vacuum thermoforming process and then assembled to a substrate for an automobile body part by adhesive means. The clear coat layer retains substantially the same gloss and color appearance of the stretched prepainted carrier film as prior to the such stretch.

Abstract: A method of manufacturing interior trimmings characterized in that an integral portion is extended from the circumferential rim of a skin material in die half, that the substantially whole of this extended portion is sandwiched and fixed between a holder member and that face of the die half which is combined with that of the other die half, that the paired die halves are thus combined with each other to mold a resin body, and that when the resin body thus molded is divided, the extended portion of the skin material is folded round the divided end of its corresponding resin body and fixed to the inner face of this resin body.

Abstract: The blanks punched out from a film web and folded to form the jacket are then heated for a short time and cooled again in order to eliminate stresses in the jacket material which give rise to deformations and are also produced by the action of heat during processing of the material.

Abstract: Process for forming and securing a polymeric sheet onto a planer board, process for making a lap desk, a die apparatus used in the process, and the laminated board product. The process includes the steps of gluing an oversize sheet onto the board and drawing the board through a heated die to bend the edges of the sheet onto the periphery of the board. The lap desk is formed by gluing a bag to the periphery of the board, filling the bag with stuffing, and drawing the sheet, board and stuffed bag through the die to laminate the sheet to the board. The die apparatus includes a frame to hold the assembly as it is drawn through the die, and a press for pushing the assembly through the die.

Abstract: This invention is for an apparatus and method for automatically forming unitary bonded board structures from a source of boards and a single continuous piece of tape. In one embodiment of this invention board pairs are automatically fed into the machine. In another embodiment a gusset is automatically formed in the unitary bonded board structure without scoring the tape. The method and machine operate automatically on the boards and tape for the most part in an in-line arrangement travelling along a horizontal plane in one direction that is about thirty inches off the floor so that the entire operation can be observed and controlled by a single operator.

Abstract: An article for feeding into a mechanical printer the uppermost form of a continuous assembly of forms having lateral marginal sections with spaced holes coinciding with the spacing of the feed pins of the feed mechanism of the mechanical printer comprising an elongated narrow flexible strip foldable down the middle and having oppositely disposed holes in each folded half longitudinally spaced to coincide with the feed pin holes in the uppermost form and having one surface of the strip coated with a pressure sensitive adhesive film; said flexible strip adapted to be mounted on the marginal sections of the uppermost form with the holes therein aligned with the holes in the marginal section and secured to the marginal sections of said uppermost form so that the uppermost ends of the flexible strips extend substantially above the upper edge of the form, whereby the uppermost ends of the strips can be engaged by the mechanical feed means to facilitate properly positioning the uppermost form in the printer.

Abstract: A method of binding sheets of a book having highly irregular edges while maintaining a flush thumb edge, includes applying a foam adhesive to the irregular edges and wrapping a spine tape with cold adhesive such that the spine tape contacts the book covers.

Abstract: The apparatus comprises an application roller pair which rolls an adhesive tape in a U-shaped manner about the rim of a shaped sheet metal part. The adhesive tape is located initially on a carrier ribbon and is drawn jointly with the former off a storage reel by means of conveyor rollers. After its separation from the carrier tape, the adhesive tape is guided via a loose pre-folding roller to the application roller pair, and the carrier ribbon is led off. The application rollers are pivotable about axes extending parallel with the shafts of the application rollers, and are arranged at the same time resiliently displaceably together with the pre-folding roller in the direction of the shafts. The longitudinal section of the pre-folding roller is concave or V-shaped and is additionally supported, displaceably in the direction of the shafts of the application rollers, by means of softer springs, so that they can follow continuously the edge of the metal sheet and urge the adhesive tape against this edge.

Abstract: An ultrasonic heatsealing mechanism and process for securing portions of a carton blank to at least one flanged container in which the surfaces to be secured are susceptible to ultrasonic heatsealing. The mechanism comprises a resiliently mounted ultrasonic horn and a series of movable counterpart elements spaced from an adjacent tip of the horn so that the counterpart elements move relative to the end of the horn one after the other. Means are provided to move the container and blank so that overlapping surfaces to be heatsealed together are passed with the counterpart elements longitudinally with respect to the horn tip means being provided to activate the horn at least when the surfaces and at least one counterpart element are present together adjacent said end of the horn so that heat-sealing can occur and causing the horn to move resiliently so that a constant gap between the tip of the horn and that counterpart element is maintained substantially constant during the heatsealing process.

Abstract: Method of binding loose leaf sheets together having multiple superposed punched holes while reinforcing the holes including providing a binding element having a tab portion and an elongated strip portion, affixing the tab portion to a face portion of one of the sheets and passing the strip portion through superposed holes within the sheets to be bonded at least once to bind the sheets together, and repeating the process for the remaining holes.

Abstract: Laminate and method for protecting books using same. The laminate comprises a stiff rectangular sheet adhered through a pressure sensitive adhesive to a thin flexible transparent rectangular sheet, which is of the same height as but wider than the stiff sheet. The two sheets are juxtaposed so that 3 edges of each mutually coincide. The flexible sheet has a flexible rectangular side portion or extension to which the stiff sheet is not adhered. The stiff sheet is preferably of the same dimension as the book to be covered. To protect a book, one applies successively two laminates of preferred size so that each sheet is adhered to the outside of one book cover; and each flexible extension is adhered to the spine and the adjacent portion of the opposite cover. The back cover is preferably covered first. The laminates are cut to size when necessary. The spine and portions of each cover of a protected book have a two-ply covering, and the remaining portions of the book covers have one-ply coverings.

Abstract: Disclosed is an area actuated switch which can be used, by way of example, in a keyboard for a calculator, learning aid or the like. An area actuated switch array is formed using two insulating sheets made of polyester or polycarbonate; the insulating sheets overlie one another such that one side of each sheet faces one another. Groups of spaced conductors formed on each of the facing sides also overlie one another, and selected conductors traverse the periphery of the keyboard. A plurality of raised, insulating spacer areas or points are positioned on the facing sides and are in registration and contact with each other. An insulating substrate is formed over the conductors traversing the periphery and this insulating substrate has substantially the same thickness as the spacer points such that the spacer points and the insulating substrate prevent the spaced conductors from making electrical contact.

Abstract: Adhesive coated front edge faces of successive stacks of paper sheets are bonded to downwardly folded marginal portions of flap-over covers at an aligning station which receives stacks from a first source along a first path wherein the stacks are caused to advance at right angles to their adhesive-coated edge faces and which receives covers with adhesive-coated marginal portions from a second source. The covers move along a second path lengthwise of their marginal portions and in parallelism with the front edge faces of the stacks in the first path. Each stack which arrives at the aligning station is disposed behind the downwardly bent marginal portion of the corresponding cover and is thereupon moved with the cover through the nip of two rollers which apply external pressure to bond the marginal portion to the edge face of the corresponding stack.

Abstract: Apparatus is adapted to automatically fold and secure the edges and corners of a relatively flexible, larger sheets over the corresponding edges and rounded corners of at least one relatively rigid, smaller blank so as to substantially maintain the contour of the corners.

Abstract: A panel for use as a temporary room divider or screen is formed by adhesively securing to one face of a first rectangular sheet of rigid material, along each of two opposing edges, one face of a tongue of an edging strip having a body providing an outwardly open channel, and fitting a second similar rectangular sheet over and in register with the first sheet, so that two opposing edges of the second sheet also lie along the edging strips. The tongues of the edging strips are stuck to the sheets, and the sheets stuck to one another, by double sided adhesive tapes of appropriate thicknesses. After the two sheets have been stuck together and to said edging strips, cloth or the like covering material is stuck to the outer face of each sheet and surplus edge portions of the cloth or the like are tucked between the edging strips and the adjacent edges of the sheets of rigid material.

Abstract: A method for bonding seams in protective garments without use of any stitching, by applying high-frequency ultrasonic waves of pressure to overlapping edges of fabric of non-woven spunbonded olefin or polyolefin having laminated to one side thereof a polyethylene or polyvinylidine chloride film.

Abstract: Sheet material to be laminated to a substructure is presented in a stretched out condition for enclosing between upper and lower laminating tools. For this purpose a sheet material transport mechanism such as a tentering frame is movable back and forth between the laminating station and a sheet receiving position. The sheet margins around outer and inner edges of the laminated work piece are then trimmed and bent over inwardly. These operations are performed while keeping the work piece on the same lower tool or mold during all operations. The lower tools are moved from laminating to trimming and vice versa on a turntable.

Abstract: A method of manufacturing heat exchange mat comprises a first heating step of a mat member for semi-gelatinizing a pasty resin adhesive in said mat member as interposed between a surface sheet and a textile insert on both surfaces of a hollow member including a heat exchanging element of the mat member so as to preliminarily bonding said sheet and insert, and a second heating step for securing a seal member to the peripheral edges of the mat member and simultaneously fully gelatinizing said resin adhesive, whereby the required manufacturing time can be shortened to a large extent.

Abstract: Apparatus for forming a disc envelope from a prepunched, flexible, plastic blank having two sections connected at the heads thereof and containing a drive hole at the same location in each section. The drive holes are located on respective hubs which are located at the same position on respective folding plates. The end edge of a mandrel is pressed against the blank in the area between the two sections while the folding plates are moved from a horizontal to a vertical position pulling the drive holes taut on the hubs and thereby locating the center fold between the two sections of the blank flap folding apparatus and sealing apparatus are attached to and swing into operating position with the respective folding plates to form the side flap folds and seal the folded flaps.

Abstract: The flexible disk envelope is formed from a flexible plastic prepunched blank having two connected sections. One section of the blank has side flaps extending from the opposite side edges. The blank is folded about an end of a mandrel so that the side flaps extend beyond the side edges of the mandrel. The mandrel holds the plastic blank section having the flaps extending therefrom against the bottom surface of a plate. The mandrel has raised edge portions running along the side edges on the outward facing surface thereof. The side flaps are folded around the adjacent edge of the mandrel in an outward folding direction by folding blades which are driven about pivot means to guide the folding blades in an arcuate path.