Abstract: A method for determining a length, especially for determining an overlap length of a wound strip of material, is provided. In order to be able to automatically determine the overlap length it is suggested that the forward end of a strip of material applied to a winding drum is detected by a detector and, simultaneously, the corresponding angular position of the winding drum is measured. After the completion of the winding of the strip of material, its rearward end is detected by the detector and, simultaneously, the corresponding angular position of the winding drum is measured. Subsequently, a difference between the angular positions of the winding drum is used to determine the length of the strip of material.

Abstract: A method for making a mineral fiber insulation assembly is disclosed. The insulation assembly includes a mineral core having opposed major surfaces, opposed side surfaces and opposed end surfaces. polymer film covers only the opposed major surfaces and opposed side surfaces. One or multiple lanes of mineral fiber packs are moved along a predetermined path. At least one sheet of polymer film is supplied to the predetermined path to cover the major surfaces and side surfaces. The polymer film is attached to at least one of the core side surfaces and a plurality of openings are in the polymer film adjacent at least one side surface. The mineral fiber pack and the polymer film cover are cut perpendicular to the predetermined path to form individual ones of the mineral fiber insulation assemblies.

Abstract: In a method and apparatus for manufacturing a slide fastener chain having rows of coupling elements and members of a separable bottom end stop assembly, two positioning holes are formed at predetermined positions on reinforcing films attached to a pair of fastener tapes. The positioning holes are used to position the fastener tapes relative to a molding unit with respect to each individual slide fastener length. Thus, even when a positioning error is produced due to a change in tension on the fastener tapes being processed, such error is limited to a small extent which is created only in the individual slide fastener length. Thus, the coupling elements and the first pin member and the second pin member can be molded precisely.

Abstract: The protection of the straight edges of multilayer panels (10), such as spacecraft thermal protection panels or heat shields, is ensured by an adhesive protection edging (14) having two adhesive, lateral zones bonded to the faces of the panel and a non-adhesive zone (18) placed on the edge of the panel. Following the removal of a non-adhesive protection (30b), a first adhesive, lateral zone (20b) is brought onto a working plane (22), through a slot (32), and is progressively bonded to the lower face of a panel (10) moving on said plane. The second lateral, adhesive zone is then turned down and pressed onto the upper face of the panel, after which the non-adhesive protection (30a) of said zone is removed.

Abstract: The present invention provides a female component for engaging a complementary hook component in a refastenable fastening device. The female component of the present invention is capable of engaging a hook component that has flexible, resilient individual hook elements. The female component comprises at least two, and preferably three zones or layers. Each zone has certain of the desired individual characteristics for entangling and holding the hooks of the mating hook component. These include a first zone for admitting and engaging at least some of the hooks of the complementary hook component (the "entanglement" zone), a second zone for providing space for the hooks to occupy after they have been admitted by the entanglement zone (referred to as the "spacing" zone), and a backing adjacent to the spacing zone for providing a foundation for the entanglement and spacing zones.

Abstract: An apparatus for folding and applying double edged adhesive tape to non resilient objects includes a tape supply spool, a tape tensioning device, a tape backing remover and tape backing take up reels. A folding apparatus folds over portions of top and bottom edges of the tape and pulls the object being taped and the tape along a work surface during the taping operation. An optional "w shape" folder applies an additional pleat to the folded tape.

Abstract: A tubular sheath made from plastic material used for the mechanical and/or thermal protection of electric cabling is wrapped in a strip of sound-insulating material, the lateral parts of which have been inserted inside the sheath through the slit. The width of the strip, preferably produced from felt, is substantially equal to the sum of the external and internal perimeters of the plastic sheath.

Abstract: A masking tape is provided that is suitable for insertion under many moldings and gaskets which not only masks the molding or gasket but also facilitates refinishing under at least a portion of the molding or gasket. The masking tape is constructed to include a longitudinal non-adhesive portion and a longitudinal adhesive portion, wherein the non-adhesive portion is stiffer than the adhesive portion and is sufficiently stiff to facilitate easy insertion of the non-adhesive portion beneath at least a portion of the molding or gasket to be masked while the adhesive portion is sufficiently flexible to permit the wrapping thereof around the molding or gasket. The stiffened portion advantageously provides a dual purpose of facilitating the easy insertion of the non-adhesive portion beneath the molding or gasket and creating a lever action during application between the molding or gasket and the wall or panel to which the molding or gasket is mounted.

Abstract: A method and apparatus for wrapping edges of a web around rod inserts to form closure elements or profiles on the web.

Abstract: A novel process and apparatus are provided for splicing together adjacent paper materials, in mid-air which includes placing adjacent paper materials together in an aligned position, pressing the papers together, applying tape by utilizing an apparatus which includes a tape spool on an axle, and roller, an inverted V channel, wheels and cant wheels for guiding and maintaining paper or plastic materials in a fixed position, and a cutter for severing tape, moving the apparatus along the adjacent paper materials and severing the tape.

Abstract: The present invention relates to a method and apparatus for producing communication articles such as postcards, envelopes or the like in each of which display surfaces for information or the like are separably bonded with a synthetic resin therebetween by heating for concealing information such as correspondence or a printed display medium and then mailing it. It is an object of the invention to enable easy and smooth separating of a film-containing sheet and accurate insertion of a film in a sheet.

Abstract: The invention relates to a method for forming a hydraulically bound web. A homogeneous mixture of wood pulp and synthetic fibers is blown on a forming surface. The web has a mixture of at least 70% wood pulp by weight of the mixture. The web is subjected to hydraulic bonding to form a stable fabric. The web is further heated to a temperature to cause partial melting of the synthetic fibers and further bonding of the fabric.

Abstract: Pile weatherstripping having rows of pile sandwiching a fin is fabricated so as to precisely locate the height of the fin with respect to the height of the pile. A travelling endless band receives webs providing the fins on opposite sides thereof with the edge of each web, which defines the height of the fin, precisely positioned on a side of the band and the other edge overhanging the edges of the band. Alignment of the webs on the band is provided either by an aligning fixture or by coining the webs to provide lines of indentations which index the webs at the edges of the band. The yarn which forms the pile is wound around the webs and the band and serves to wrap the overhanging portions of the webs around the band, or a guide may be used to facilitate wrapping of the webs around the band, prior to winding of the yarn. Backing strips are attached, as by ultrasonic welding, along the edges of the band. Then the yarn is slit without cutting into the webs.

Abstract: A method and apparatus for making an insulation assembly is disclosed. A plurality of mineral fibers are moved along a conveyor system after having been cut to desired sizes. A section having a major surface is moved in a direction generally normal to that of following sections, while maintaining the major surface in a plane parallel to the plane of the major surfaces of the following sections. A plurality of the individual sections move through an encapsulation module where they are assembled and covered to form the insulation assembly.

Abstract: A reinforcing strip is applied to sheets by longitudinally advancing a leading sheet while the strip is adhered to it along a travel path to a downstream stop station and thereby drawing the strip from a supply and extending it longitudinally through an upstream stop station while simultaneously adhering the strip to the full length of the leading sheet. Then the leading sheet is arrested in the downstream stop station while a trailing sheet upstream of the arrested leading sheet is advanced downstream until a leading edge of the trailing sheet engages an upstream stop in the upstream station immediately upstream of a trailing edge of the leading sheet. The trailing sheet is then arrested with its leading edge engaging the upstream stop which it pushes downstream against the upstream edge of the leading sheet. Generally simultaneously the strip is adhered upstream of the upstream stop to the trailing sheet and the strip is severed at the upstream stop between the leading and trailing sheets.

Abstract: A magnet wire of modified cross-section is electrically insulated by adhering thereto an insulation tape which does not require a high temperature adherance step. The insulation tape has a pressure-sensitive adhesive coating which, prior to application to the magnet wire, is covered by a release strip. Just prior to application of the insulation tape to the magnet wire, the release strip is removed from the tape to uncover the adhesive coating and allow pressure-sensitive bonding of the insulation tape to the magnet wire.

Abstract: A continuous procedure for obtaining panels clad on at least two adjacent sides from a continuous band, including the steps of gluing cladding along a first face of the bands, holding the cladding in position until final gluing, gradually folding down the cladding along the side or sides of the band, gluing down the flaps and holding the cladding in position until final gluing. The invention applies to obtaining edged insulating panels.

Abstract: A method of manufacturing a fiber glass blanket encapsulated within an air-permeable sheet on one major face and a non-porous film extending over the other major face and the two side edges. The film is applied by being wrapped around the edges of the backed blanket and preferably being heat sealed to the backing sheet. The air-permeable sheet is preferably applied to the blanket before curing of the binder in the blanket, and in a preferred method the glass fibers are deposited directly on the sheet while the sheet is supported on a collection chain.

Abstract: A method and apparatus for securing an enlarged sheet-like fabric to a side face of a panel which is provided with edge frame elements having retaining channels extending therealong. Each retaining channel has a film or bead of a solid adhesive therein. An edge portion of the fabric is positioned to extend over the mouth of the groove, and is then folded over an inserting member which inserts the fabric edge portion into the groove. Substantially simultaneously the adhesive film or bead is heated, as by an induction heater, and the inserting member presses the folded fabric edge portion into the melted adhesive. This contact is maintained and the adhesive is subjected to cooling to effect resolidification thereof and fixed securement of the inserted fabric portion to the channel part. The insertion preferably involves an inserting device having a plurality of blade-like rollers which insert the fabric into the channel as the edge frame of the panel relatively moves longitudinally along the set of rollers.

Abstract: A filter insert of nonwoven material in the form of a pleated pack is self-supporting and consists of thermally weldable nonwoven (1). Each of the two outside ends (3) of the pleated pack (2) is hemmed by the nonwoven material (1) forming the pleats, which is folded over in the same direction and at the same time is fixed in tight contact to the corresponding folded of the adjacent pleat end. At the same time the nonwoven material projects beyond the near crease of the adjacent pleat end by 0.5 to 1.5 times the pleat spacing. For manufacture, the flat filter material (1) is first pleated and then a defined pleat spacing (7) is produced by drawing it apart to a limited extent. Then the two outside edges (8) of the pleated pack are gripped between comb-like tools (9) entering pincer-wise into the pleating at top and bottom, leaving the filter material projecting beyond the tools on each side by 1.5 to 2.5 times the pleat spacing (7).

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: A method and apparatus for making continuous lengths of thermoplastics material fibers reinforced laminates by arranging layers of fibers reinforcement impregnated with a thermoplastics material in alignment with and between outer sheets of another material to form a stack and passing the stack through a tool having two opposing platens, one of which is movable relative to the other, and operating the tool so as to compress the stack and form a laminate. The stack is passed from entry to exit of the tool in steps, the extent of each of which is substantially less than the length of the tool such that each area of the stack is subjected to repeated compressions by the tool is passing therethrough. A recess is formed in one platen, which is adapted to receive a land formed on the other platen.

Abstract: A cable shielding tape is produced by laminating a single layer of an insulating material film which may be plastic to a conducting layer which may be of metallic foil with one edge of the conducting layer offset laterally with respect to said insulating layer, leaving a foil free edge portion of the insulating layer along one edge of the tape. This can be manufactured by laying the insulating layer tapes in a shingled formation, laminating a web of foil over the tapes and then separating the tapes each with a partial covering of the foil. The conducting layer and insulating layer are coterminous at the opposite edge and both are folded back with the conducting layer outermost.

Abstract: Apparatus for manufacturing, on an automatic continuous basis, successive album pages of predetermined length and width each of which consists of a base sheet having a reinforcing tape bound thereto in overlapping relation with each edge thereof comprises a series of five stations: a tape preparing station, a sheet loading station, a glue station, a page assembly station and a cut-off station. In operation, one of two tapes has staple-like hinges applied thereto, both tapes are coated on one surface with glue, and both tapes advance to the assembling station to which successive sheets are fed lengthwise from the sheet loading station. In passing through the page assembling station, the tapes are folded and pressed into overlapping adhered relation with the side edges of the sheet to form a web consisting of a series of pages held together by intermediate pieces of the two tapes. The tapes, the successive sheets and the resulting web are drawn through the apparatus by a reciprocating carriage.

Abstract: A fabric web having a high modulus of elasticity is used as a spring element in an upholstered article such as a seat or a bed. The fabric web is joined to a metal rod serving as a frame member of the upholstered article by an end portion of the fabric web, which is folded on itself over the metal rod to provided folded and unfolded layers that are united together by means of a heat-fusible resin film. The heat-fusible resin film is held against the inner surface of the folded end portion of the fabric web and fused by high-frequency welding. The folded end portion of the fabric web is protected by the intermediary film against damage which would otherwise be caused by abrasive contact with a rust layer on the metal rod. The film sandwiched between the folded and unfolded layers has opposite ends folded and fused over the unfolded layer of the fabric web for reinforcing marginal edges of the fabric web.

Abstract: The method ensures that the core of thermoplastic material of the product is completely enveloped by a continuous covering formed by at least one sheet of a flexible material. Equipment for carrying out the method comprises an extruder 7 for delivering the thermoplastic material in a pasty state and in the form of a rod 16-18 having a regular section, means 20 for unrolling under this rod a sheet 19 of a flexible material, means 34 and 41 for completely enveloping said rod with said flexible material, and means for pulling on said sheet of flexible material and conveying the rod to calendering rolls 43 and 44, and means 46 for forming and means 47 for cutting to the desired length said rod which is thus completely enveloped by said sheet of flexible material. This equipment is applicable to the manufacture of shapes and plates for in particular the packaging and transportation of products.

Abstract: A carbonaceous cylindrical body including a composite body of a carbonized material of a thin paper-like supporting body having a strength ratio of lengthwise direction to widthwise direction of 2 to 10 and obtained by manufacturing a paper-like body so that its carbonizable fibers are oriented and a carbonaceous matrix having an optically isotropic structure under a polarizing microscope and which shows a carbon content of at least 85% by weight, an oxygen gas permeation coefficient of 10.sup.-2 to 10.sup.-7 cm.sup.2 /sec. under a partial pressure of oxygen of 1 atmosphere and a bulk density of from 1.4 to 1.9 g/cm.sup.3. A process for producing the carbonaceous cylindrical body is also provided.

Abstract: Apparatus for producing a continuous sequence of disposable headdresses in which the edge of the cap fabric has been folded inward around a peripherally extending elastic cord to provide a smooth edge which contacts the wearer, and provides superior adhesion between the elastic cord and the cap fabric by utilizing an elastic cord and fabric which are coated with or made of thermoplastically compatible materials. The elastic cord and fabric are assembled by passing the fabric and the cord through a guide system which turns the fabric side edges down from a horizontal plane to a vertical plane while an edge guide lays the elastic cord under the fabric, and then turns the fabric under the cord to sandwich in the folded edge. Warm air preheaters heat the elastic cord and the fabric before completing the fabric fold around the cord. The folded edges with the cord inside pass between dual heat wheels which physically press the fabric to the cord and also seal the fabric edge to the inside of the crown.

Abstract: A cable shielding tape is produced by laminating a single layer of an insulating material film which may be plastic to a conducting layer which may be of metallic foil with the conducting layer offset laterally with respect to said insulating layer, leaving an overhanging portion of the insulating layer along one edge of the tape and a similar overhanging portion of the conducting layer along the opposite edge of the tape. This overhanging portion is then folded over the edge of the insulating layer and bonded to the opposite surface thereof. In an alternative arrangement the conducting layer and insulating layer are coterminous at the opposite edge and both are folded back with the conducting layer outermost.

Abstract: Here is disclosed a method for making wearable articles such as disposable diapers, disposable diaper covers or the like, more particularly, a method for formation of side flaps provided with elastic members for a desired fitness around the wearer's legs. This method comprises steps of forming a main body of the article having first side flaps extending outwards from opposite sides thereof, forming second side flaps separately of the main body, providing the second side flaps along the respective one side edges with elastic members, and joining the second side flaps along the respective other side edges and longitudinally opposite ends thereof to the top surfaces of the respective first side flaps so that the respective one side edges of the second side flaps along which the respective elastic members are disposed are directed outwards.

Abstract: A method of sequentially producing a plurality of disposable headdresses in which the edge of the cap fabric has been folded inward around a peripherally extending elastic cord to provide a smooth edge which contacts the wearer, and provides superior adhesion between the elastic cord and the cap fabric by utilizing an elastic cord and fabric which are coated with or made of thermoplastically compatible materials. The elastic cord and fabric are assembled by passing the fabric and the cord through a guide system which turns the fabric side edges down from a horizontal plane to a vertical plane while an edge guide lays the elastic cord under the fabric, and then turns the fabric under the cord to sandwich in the folded edge. Warm air preheaters heat the elastic cord and the fabric before completing the fabric fold around the cord. The folded edges with the cord inside pass between dual heat wheels which physically press the fabric to the cord and also seal the fabric edge to the inside of the crown.

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 improved method and related apparatus are provided for making convertible top for automobiles and the like, wherein top deck and side quarter panels of fabric-based material cooperatively form rain gutters extending along the opposite sides of the top deck panel. The top deck and each side quarter panel for a convertible top are initially sewn together in overlying relation near one side margin whereupon the side margin is folded over with the side quarter panel folded back upon itself to define a pair of directly overlying side edge strips. This folded side margin is advanced through a folding fixture adapted to insert an elongated rod substantially into the base of the fold between the side edge strips of the side quarter panel. An adhesive material is applied between the side edge strips which are then pressed together to obtain a secure bond therebetween and to lock the rod in place.

Abstract: A method of and apparatus for making, and the resulting material for fabricating reclosable bags and in which a length of web of predetermined width of bag material as wound on a mandrel has fastener strip sections joined to and across the width of the web. The web is adapted to travel continuously spirally about the mandrel. The fastener carrying web may be folded longitudinally and resiliently flexible profiles of the folded fastener strip sections separably joined. Ends of the fastener strips before, and after, folding may be flow melted and fusedly flattened. Ends of the fastener strips may be aligned with a fold juncture of an underturned flange of the web and the margin then unfolded to extend beyond the strip ends.

Abstract: A smooth edged, "C"-folded sanitary napkin is provided, there being a tuck in each longitudinal edge so as to produce a body contoured product.

Abstract: A composite tape primarily for use in transformer winding as an electric screen and having a backing layer of Melinex plastics tape (112) folded around a metal foil strip of copper (110), and a strip of adhesive PVC tape (114) applied to the folded round edges, is formed by a machine having a braked spool (48) of PVC tape (52) which is fed around a roller (36) with a copper foil strip (58) from a braked second spool (56), sandwiched between the tape (52) and the roller (36), and guide rollers (40, 42) which turn in the outermost edges of the tape (52) to overlie the foil (58), whereafter adhesive tape (66) from a braked third spool is applied to the overlapping edges of the tape (52) by a roller (68) and the composite tape is fed through an outlet roller guide (74).

Abstract: A layer of padding is centered on a sheet of upholstery material. A rail is centered top down on the layer, and this feed assembly is moved continuously along a feed path by driven rotating rollers contacting the rail. The rail is forced by the roller toward a smooth slide face, which presses the sheet and layer against the rail top. The sheet slides along the smooth slide face. Smooth faced fences have inclined edges that progressively fold, pull taut, and then press the sheet toward the rail, compressing the layer. Guides with smooth faces and inclined edges fold the remaining sheet against the rail. The edges of the sheet are stapled or glued to the rail, producing a cap or padded rail with a taut, uniform upholstery covering. The staples or glue is inserted when the feed assembly has moved a desired distance along the feed path.

Abstract: A file substrate of paper stock such as a file backer or file folder having a reinforced edge portion is disclosed. Such file substrate has at least one straight edge with a tear resistant plastic film secured either side of the substrate and about the straight edge. This film reinforces the substrate straight edge without significantly increasing the thickness thereof. A colored adhesive may be used for securing a clear reinforcing film to the folder. This provides a color band down a side of the folder to distinguish a group of files in a file system. Method and apparatus are disclosed for applying the reinforcing film to file folder blanks.

Abstract: A predecorated gypsum wallboard and the method of manufacture wherein a protective base coat is applied on the face paper by a rotogravure printing of the protective coat with minute openings very closely spaced throughout the coating, as by printing the coat in the form of reasonably uniformly sized tiny dots with about 1000 to about 100,000 dots per square inch, a decorative coat is applied over the base coat, gypsum wallboard is formed with the coated surface of the paper on the outside face, and the newly formed wallboard, when hardened, is dried by heating and removing water from the gypsum core through the still porous coated paper.

Abstract: Method and apparatus for automatically and continuously forming hygienic disposable pads which includes a fluff forming means and a fluff shaping means. The shaped fluff is passed by a plurality of operation performing stations wherein sheet material is applied to form a package wherein adhesive material is applied to sheet the package and form a functional part of the pad.

Abstract: A form fit disposable diaper has an absorbent pad folded intermediate the ends to provide increased absorbent material in the crotch and has water impervious side seal strips folded over the pad in the crotch to minimize leakage along the edges of the diaper and to prevent the absorbent pad from shifting. A quantity of water absorbent polymer is employed to enhance moisture absorbing capabilities. The side seal strips are desirably perforated to permit moisture strike through into the pad but prevent transfer of the polymer to the facing sheet and the skin of the diaper wearer.

Abstract: A method is provided for adding strength to a T-bar grid fabricated with a double web and capped system. The addition of strength is achieved by coating the inside portions of the T-bar with a hot melt adhesive. Cooling sets the adhesive and results in the parts of the grid member becoming a unitized structure.

Abstract: A thin absorbent undergarment liner is provided which exhibits a clear, aesthetically pleasing embossed pattern on the body facing surface thereof while still maintaining the longitudinal edges soft and comfortable. The liner is provided to have areas of deep depressions on the body facing surface and shallow impressions on the longitudinal edges.

Abstract: A filter assembly (10) includes a frame (10 and 12) and means (10, 32, 34, 36, 38, 44, 48, and 50) releasably retaining a replaceable pleated filter element (14) therein. The edges of the pleats (68) of the filter element (14) are folded over diagonal fold lines (70) and tucked between adjacent pleats in a manner which provides control expansibility and substantially even pleat spacing upon expansion after storage in collapsed condition.

Abstract: An apparatus for C-folding a running length of a covering web such as a polyethylene ribbon about a longitudinally flexible article such as a running length of a core web for making disposable diapers or a stream of longitudinally spaced discrete core segments of such a core web; i.e., a stream of absorbent cores for disposable diapers. The apparatus effects folding each longitudinal edge portion of a covering web downwardly and inwardly about an adjacent longitudinal edge region of the article as the web and the article are forwarded through the apparatus. Each longitudinal edge portion is so folded intermediate a transverse turning member which it passes under, and an oblique turning edge disposed downstream therefrom and over which it passes; and the longitudinal edge portions of the running web and the adjacent longitudinal edge regions of the article become juxtaposed upon passing over their respective oblique folding edges.

Abstract: An apparatus for the application of an adhesive film strip about the edge of a shaped part of sheet metal comprises a pair of application roller which rolls on the adhesive tape about the metal sheet edge, imparting to the strip a U-shaped cross section. The adhesive film strip is originally on a carrier tape and is on a storage reel from which it is drawn off by conveying rollers. After being separated from the carrier tape, the adhesive film strip is fed via free-wheeling pre-folding rollers to a pair of application rollers, and the carrier tape is removed by means of further conveying rollers. The pair of application rollers and the pre-folding rollers can be swivelled together about an axis extending parallel with the shafts of the application rollers, and are at the same time resiliently displaceable in the direction of this axis. The distance of the application roller shafts from the said swivelling axis is adjustable in order to achieve a leading or a trailing run.

Abstract: A plastic sheet (13) having a surface with low friction and high gloss is produced by extruding a layer of thermoplastic and pressing it while hot against the surface of a chill roller (17). The surface of the chill roller (17) is characterized by being highly polished and having minute randomly distributed depressions therein of an average depth of about 5 microns, a depth standard deviation of less than 3 microns, and an average frequency of about 3,000 per square centimeter. The thermoplastic layer may be laminated to a single or multilayer base (12) to form a finished product (21). A polyethylene surface layer will have a coefficient of friction generally less than 1.0 with respect to itself, while the surface nonetheless retains a high gloss appearance.

Abstract: The apparatus accepts dry stripped crude fiber such as straw or sugar cane wastes, coconut husks, or elephant grass, compacts them into a relatively dense sheet, and bonds a strong surfacing material such as a heavy paper to the faces and edges. The sheet, continuously flowing from the apparatus, is cut into standard lengths and the cut ends are capped with the same surfacing material. A precompactor near the end of an entrance chute into the apparatus uniformly predensifies the incoming fiber prior to its compaction by means of a ram. The ram is carried on roller bearings especially adapted to withstand the weight and other forces associated with the continuous movement of the ram. The compacted material is continuously propelled by the ram and enters a press, where heat and pressure produce a dimensionally stable sheet bonded together partially by natural resins released from the fibers by the heat, and partially by mechanical interlinking between fibers.

Abstract: A developed photographic film strip having protective foil on both sides is releasably connected to the foil at one margin of the film strip by pressure-sensitive adhesive, the other margin projecting from the foil so as to be accessible.

Abstract: The invention relates to a method and apparatus for forming fused seamless belts from an outer covering and an interlining material along with an adhesive. In accordance with the method, the outer covering fabric is folded over the interlining material to enclose the interlining material. The outer covering material is folded in a double layer on either side of the belt on the bottom surface of the interlining material. The belts are formed by applying heat under pressure to the folded arrangement whereby to fuse the various layers together.