Abstract: An apparatus is described for the continuous production of glass fiber mesh reinforced concrete panels consisting of a layer of light weight concrete core mix bonded to a web of glass fiber mesh on each face. An uncured ribbon of reinforced concrete is first formed, suitable for cutting into individual panels. A new method of depositing the cement slurry or core mix on the web of fiber glass has been developed; this is accomplished by conveying the web over a reversely-turning pumping roller which transfers a controlled amount of slurry or core mix to the web.

Abstract: An apparatus and method for making a strong, high loft, low density nonwoven fabric from a web comprising at least about 5 percent bicomponent fibers, and the fabric formed thereby; wherein the web is superimposed on a first carrier belt, an open mesh belt is superimposed on the web, and the web and belts are caused to travel in a tensioned curvilinear path adjacent a heating means to heat fuse the low melting point component of the conjugate fibers to fibers in the web.

Abstract: An embodiment assembly for the impregnation of a continuous length of fibers comprises a convex surface and a non-convex surface over which the length of fibers is drawn under tension. The pressure of impingement on the surfaces alternately separates and consolidates the fibers in sequence during their impregnation with the resin, to obtain a complete and homogeneous impregnation.

Abstract: Packaging pads comprise top and bottom sheets laminated together along peripheral surface portions with a pocket of comminuted filler material centrally disposed between the sheets. Apparatus for manufacturing the pads continuously feeds an endless bottom sheet along a predetermined travel path, and liquid adhesive is applied to the upper surface of the sheet as it so travels. A stream of filler material is divided into spaced apart individual pocket amounts and these filler amounts are joined to the adhesive coated surface of the bottom sheet. A top sheet coated with liquid adhesive on the underside thereof is laminated onto the bottom sheet and the pocket amounts of filler material. The thus formed continuous laminate is transversely cut midway between adjacent pockets of filler material to thereby form individual packaging pads.

Abstract: The invention relates to an arrangement for bonding an elastic ribbon (51) under tension to a plastics web (10) along a curved path thereon with the aid of an adhesive, in the manufacture of diapers or like articles. The ribbon is introduced into a given cured path on a cylindrical drum (15). Arranged in the given path are suction openings which communicate with a suction source and are effective in holding the ribbon firmly by suction along the whole of its length, therewith preventing the ribbon from sliding relative to the drum and the plastics web and from twisting or tilting on the drum despite the tension in the ribbon. Means (89) are provided for breaking the connection between the suction openings and the suction source as the suction openings pass the end point of a given distance on the drum (15).

Abstract: Disclosed herein is a method for glueing corrugated board and an apparatus for carrying out the same, the method comprising: heating a starch glue to a predetermined temperature range by heat exchange; supplying the starch glue to a glue pan placed in a hot atmosphere of a heat-insulated space so as to maintain the glue in a heated state; feeding a corrugated core sheet and a liner into the heat-insulated space; applying the heated starch glue to ridge portions of the corrugated core sheet; and bonding together the corrugated core sheet and liner.

Abstract: The present invention relates to a process and an apparatus for producing phenolic foam laminates with improved surface appearance. The process involves applying pressure on the foam forming mixture through one of its facings by a flexible member. The member is sufficiently flexible to allow continual rise of the foam but also smoothes out any uneven rise under the applied pressure thereby producing a laminate which has a surface immediately below the facing substantially free of any voids, craters or wrinkles.

Abstract: Metal strips or foils more than 800 mm wide are brought to an end temperature of 100.degree.-300.degree. C. by stepwise heating. The strips or foils are deflected at an angle (.alpha.) of 15.degree.-150.degree. C. over 2 to 6 rolls set at increasing temperatures in the direction of throughput, at least the last roll having a double outer layer that can be heated, and the last roll being set at the final, desired temperature. The increases in temperature from one roll to the next lie between 20.degree. and 70.degree. C., preferably between 50.degree. and 60.degree. C. Usefully all the increases are the same. The process according to the invention is employed in the manufacture of composites and in the laminating and lacquering or painting of metal strips or foils.

Abstract: A plywood is manufactured by applying an aqueous plywood adhesive fluid to the peripheral surface of a heating roll rotating at a given speed by means of a roll coater to form an adhesive fluid film, drying the adhesive fluid film into a tacky-dry film while it is carried on the surface of the heating roll, stripping the tacky-dry adhesive film from the roll surface by pulling it under tension with or without the aid of a stripping knife, interposing the adhesive film between a pair of veneers, and pressing the veneers to each other to bond them.

Abstract: The present invention relates to a method and apparatus for laminating two webs of corrugating medium to produce a composite corrugating medium for the manufacture of corrugated fiberboard. The method essentially consists of the steps of (a) applying a coat of a water-soluble adhesive onto one side of at least one web of a first and second corrugating medium; (b) conveying the first and second corrugating medium over the surface of a first heating cylinder such that the water-soluble adhesive is between the first and second corrugating medium to join them together into a loosely bound composite corrugating medium, wherein heat is applied to one surface of said composite corrugating medium through the first heating cylinder; and (c) passing the opposite surface of the composite corrugating medium to a second heating cylinder to subject the composite to a second heating step. The present invention contemplates an apparatus for carrying out this invention.

Abstract: An apparatus for forming a succession of equispaced and transversely extending glue strips on a longitudinally extending web has an applicator drum rotatable about a drum axis and having a cylindrical outer surface with a circumference equal to a whole-number multiple of the desired distance between succeeding strips. The drum is formed with at least one axially extending manifold passage and an axially extending row of bores opening radially outward at the drum surface and inward into the passage. Guide and transport rollers displace the web longitudinally at very high speed past the applicator drum with the web looped over same and engaging same over an angularly extending contact region. A drive rotates the drum about the axis at a peripheral speed substantially equal to the very high displacement speed of the web.

Abstract: A laminating apparatus for laminating extensible plastic film material to a paper backing material to form a laminated composite. The apparatus comprises mechanical stretch control means for controlling the stretch or relaxation of the film material prior to lamination with the paper material. The apparatus also comprises means for monitoring the amount of film stretch in the laminated composite and providing data therefrom to a data processing unit which provides control signals to operate the mechanical stretch controlling means.

Abstract: The invention relates to a method and device for continuously applying a decorative strip to a rubber profile or section, especially for use in the automobile industry, wherein the decorative strip is inserted into a corresponding groove-shaped recess formed in the surface of the rubber profile or section.

Abstract: Apparatus is provided for making profiled bars for windows, doors and other frames. The profiled bars are profiled metal cores and profiled facings having angled side flanges. The apparatus includes a carrying frame, a conveyor line for handling the profiled metal cores, an adhesive-applying station in the carrying frame, tangentially extending feeders with conveying members for handling profiled facings to be applied to opposite sides of the profiled metal cores, which feeders are provided on the carrying frame behind the station in the direction of travel of the conveyor line and include spreading wedge assemblies for spreading angled side flanges beyond edges of side walls of the profiled metal core.

Abstract: A process and apparatus for making a multi-pocketed album page includes means for supporting and guiding a plurality of transparent plastic strips into contacting relation with opposite surfaces of a paperboard web, the latter being moved through a predetermined path of travel. Longitudinal heat sealing means are provided for heat sealing the plastic strips to the paperboard web in a direction along the path of travel of the strips and paperboard web. Transverse heat sealing means are also provided for heat sealing the strips to opposite surfaces of the paperboard web transversely of the path of travel. Shiftable cutting or shearing means are provided for cutting the paperboard web and transparent strips, after sealing, into page size so that each page is provided with a plurality of upwardly opening transparent pockets on both surfaces thereof.

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: Reinforced plastic (FRP) panels of substantial width are manufactured continuously in a machine utilizing two stainless steel belts, with an inner belt trained about a driven rotating heating drum and an idler sheave. An outer belt is trained about the inner belt as it passes around the drum and also about three idler sheaves, two being employed to direct the outer belt about the inner belt and the third being employed for tensioning and tracking purposes. An additional idler roll is employed as a nip roll where the two belts join substantially tangent to the heating drum. Both belts may have substantially horizontally flights for application of heat curable resin. A fiberglass or other reinforcement mat is fed into the nip. The resin such as unsaturated polyester may be fed in controlled doctored amounts of liquid form to provide a bead or puddle at the nip into and through which the mat is drawn. The heat of the drum initiates the cure to form a wide controlled thickness reinforced sheet.

Abstract: In the manufacture of a multi-ply fibrous web structure, each of a pair of plies of fibrous web material is provided with a pattern of relatively deep, primary, spot embossments each adherent to the opposite ply and surrounded by a pattern of relatively shallow, secondary, non-adherent spot embossments.

Abstract: A web is placed on a grooved cylinder, folded by pressing it into the cylinder grooves, and attached to a backing sheet to form a pile fabric. Folding is performed by rollers with blades which enter and move along the length of the grooves. The rollers are guided precisely by guide members on their opposite axial sides. To prevent the rollers from pushing the textile material across the grooved cylinder surface, the rollers are rotated independently of their contact with the web.

Abstract: To make diapers having elasticized regions, unstretched segments of elastic ribbon are deposited on a first rotating roll which has vacuum holes in its periphery for attracting the body of a segment and a mechanical element for temporarily securing one end. The first roll rotates segments successively to a place adjacent a second roll which has a larger radius and, hence, higher peripheral velocity than the first roll. The second roll has grippers spaced apart by an amount substantially equal to the desired stretched length of the segments. The leading end of each segment on the first roll is engaged by a gripper on the second higher speed roll so the segment stretches after which a lifter on the first roll releases the trailing end for it to be engaged by a gripper to hold the stretched segment on the second roll. Quick setting glue is applied to the stretched segments and the top porous sheet material comprising the diaper is run in contact with the segments to pick them up.

Abstract: The method and apparatus for applying elastic bands to a web for disposable products such as diapers includes the use of a rotating drum as a base or working surface to support the elastic bands and web while the bands are under tension and while adhesive is setting. Various arrangements are provided for gripping and holding the elastic bands to the drum surface, and various arrangements are provided for cutting the elastic ribbons in the waistband portions of the diapers to remove portions of the ribbon.

Abstract: In this invention, a continuous elastic ribbon is fed to a diaper assembly station in a stretched condition while, at the same time, an adhesive is continuously applied to the elastic ribbon. Simultaneously, absorbent batts, as well as webs of moisture-impervious backsheet material and moisture-pervious top-sheet material are fed to the diaper assembly station. Further, and simultaneously, while the webs are traveling to the assembly station, a release medium is applied to one of the said webs in selected areas thereof in a manner so as to overlie pre-determined, isolated portions of said stretched, elastic ribbon. At the assembly station, the stretched elastic ribbon is adhered to the moisture-impervious backsheet web along portions of the elastic ribbon which intervene the selected areas of the web where the release medium is located.

Abstract: The invention concerns a device for the automatic laminating of copper coated insulating plates for the preparation of electric circuit boards with centrally arranged and motor driven laminating rolls.

Abstract: The invention relates to a method and apparatus for fabricating sheets of thermoplastic or thermosetting material whereby said material in a non-hardened condition is fed into the space between the vertical parts of two endless belts which material according to the invention is supplied onto the returning parts of the belts in the form of webs or by spraying while preferably material is supplied as well from above within the gap between the layers facing each other.

Abstract: Methods, the products produced thereby, and apparatus for forming conformable garments having selected discrete elasticized areas. More specifically, methods and apparatus for stretching one or more ribbons of thermoplastic elastomeric material, immobilizing the stretched material in its extended state, subjecting spaced discrete areas of the stretched material to heat so as to "kill" the elastic properties thereof in the heated regions while leaving the elastic properties of the intermediate unheated regions thereof unaltered and bonding the alternate elasticized and non-elasticized zones of the elastic ribbon to a continuous web suitable for use in forming a plurality of interconnected, but severable, like conformable garments having selected discrete elasticized areas on a high speed production basis. In the preferred form of the invention, the conformable garment thus formed comprises a disposable diaper product.

Abstract: An apparatus for fabricating absorbent, puffy sheet structure comprising a pair of plies of web material adhered in continuous linear regions interspersed with pocket portions. Portions of the plies forming the pocket portions include inwardly presented perforate bosses that enhance softness and water absorbency. The apparatus comprises a pair of matched-pattern, synchronously rotatable steel rolls each provided with small, sharp, ply-perforating members in the recesses between land areas, in combination with synchronous rotatable rubber embossing rolls urged against the rotatable steel rolls and intervening plies to form the perforate bosses.

Abstract: An apparatus for forming continuous lengths of composite material comprised of a core of resilient and open-cell foam material impregnated with an uncured thermosetting resin and which core element is overlaid with at least one outer layer of a reinforcing material.

Abstract: An array of dancer rollers are resiliently biased for engaging a plurality of webs in a take-up zone of a honeycomb machine. The dancer rollers engage each web and thrust it out of its plane of advance to maintain the webs under continuous tension loading as they are alternately advanced and halted during successive feeding and cutting cycles, respectively. A pair of index rollers engage the webs, pull them from supply rolls and feed them to a cyclic cutter in response to rotation of the index rollers. In this arrangement, the continuous drive rollers used in conventional web movement arrangements are eliminated with the webs being pulled from the supply roll intermittently and according to need by the index rollers.

Abstract: In apparatus for applying fluid adhesive to strips to be wound helically to form a tube, the strips are led over a tank in step-wise configuration with successive strips laterally and vertically offset relative to one another but overlapping so that an upper strip partially overlaps the next lower strip. Liquid adhesive pumped from the tank is delivered onto the uppermost strip which then passes through scrapers which scrape surplus adhesive off the strips so that at least part of the surplus flows off a lateral edge of the uppermost strip onto the next lower strip. If there are more than two strips, the process is repeated so that surplus adhesive is flowed at least in part from each strip to the next lower strip. Any surplus not retained by the strips flows back to the tank.

Abstract: A method of bonding a fluid-porous, fibrous, woven or non-woven web to a substrate and products made thereby. The porous web is overall or pattern coated with an extremely low level of hot-melt adhesive by causing the hot-melt adhesive to be wiped from a controlled thickness hot-melt adhesive source by the individual projecting surface fibers and fiber junctions of the porous web. Hot-melt adhesive globules are formed on the individual projecting surface fibers and fiber junctions which, when the porous web and substrate are passed through a preset clearance nip roll assembly, provide a product wherein the porous web is bonded to the substrate with excellent bond strength, the porous web remaining flexible and completely transparent to fluid transmission.

Abstract: An apparatus for the continuous production of prefabricated insulating panels is provided, which includes a feeding station for a lower metal sheet and for an upper metal sheet, a rolling-mill train for shaping the sheets, a furnace for heating the sheets, a device for injecting expandable plastic material between the sheets, a joining unit for joining the sheets together and for holding the expanded plastic material in place, and a cutter for cutting the finished panels. The joining unit has two, link-type upper and lower conveyors for the sheets shaped by the rolling-mills, at least one of which is adjustable, so that the distance between them may be regulated according to the thickness of the panel, with the conveyors being arranged to revolve continuously around rollers which rotate about a horizontal axis. An article produced by the apparatus is also provided.The present invention relates to an apparatus for producing insulating panels and the panels produced thereon.

Abstract: Apparatus for manufacturing a composite fabric, including an endless carrier belt having a non-stick surface and traversible over first and second contiguous sets of planar support surfaces. Heating means are provided for heating the first set of planar support surfaces and cooling means for cooling the second set of planar support surfaces. A first means is provided for supplying a relatively thick substrate to the carrier belt in advance of the first set of planar support surfaces which means includes a device for applying deaerated thermo-plastics material in liquid form directly to the surface of the carrier belt. A second means supplies pile-forming material and a third means is arranged to receive the pile-forming material that includes a lick roller for coating one surface of said pile-forming material with plastics material in liquid form.

Abstract: A laminator system for the continuous treatment and lamination of a plurality of flexible webs, with the system including the conventional adhesive applicator stations and laminator stations, with a drying chamber being arranged to dry or otherwise condition the applied adhesive films. The drying chamber is an annular enclosure having a generally inverted "U" configuration with access openings being formed at the base of each of the upright legs. Guide rolls are provided for creating a plurality of web paths through the laminator system, with the web paths including a plurality of generally parallel and concentric spans extending through the drying chamber. In addition to size reduction considerations, the drying chamber provides enhanced versatility for the laminator assembly, and simplifies solvent recovery.

Abstract: In a preferred embodiment, a continuous elastic ribbon is fed to a diaper web assembly station in a stretched condition. While traveling to the assembly station, an adhesive is applied to discrete lengths of the elastic ribbon at regularly spaced intervals. Simultaneously, discrete absorbent core segments as well as webs of moisture-impervious backsheet material and moisture-pervious topsheet material are fed to the diaper web assembly station. At the station, the stretched elastic ribbon is adhered to the moisture-impervious backsheet web in the discrete areas of the elastic which are covered by adhesive at predetermined points along the length of said web. After the adhesive has set up, the assembled web and the elastic contained therein is severed in its unadhered areas, whereupon the unadhered end portions become relaxed and inactive without affecting the functionality of the adhered portions in the ultimate assemblage.

Abstract: A method of tacking a honeycomb core to a base sheet, the core member having coatings of adhesive, one provided on the ends of the cells of each face of the core. The core is engaged with the base sheet so that one coating of adhesive contacts the base sheet while moving the core and the base sheet as a unit along a rectilinear path of travel. While engaging the core with the base sheet, the base sheet is (a) heated to temperatures within a wetting temperature of the adhesive but below the curing temperature of the adhesive, (b) maintained at temperatures within said wetting temperature range for a time sufficient to allow the one coating of adhesive to be heated, to flow and to form a fillet between the base sheet and the core but insufficient to allow undue heating of the other coating of adhesive, and (c) the base sheet, the adhesive, and the core are rapidly cooled to a discharge temperature which is below the wetting temperature range of the adhesive, thereby to tack the core to the base sheet.

Abstract: A mastic composition formed of a substantially homogeneous imporous mixture of a predetermined volume of low-density expanded closed-cell synthetic resin beads and a slurry prepared from calcined gypsum and water wherein the interstitial volume of the expanded beads is not substantially less than the volume of slurry. The substantially homogeneous mixture is self-adhering as a thick layer on an inverted smooth surface and yet separable therefrom as an integral layer, the mastic composition setting to a hard, strong, dimensionally stable, heat- and sound-retardant material. Methods of mixing mastic compositions, and composite structural panels utilizing mastic compositions as well as the methods and apparatus for forming such panels are also disclosed.

Abstract: An arrangement for manufacturing a fibrous sheet in which fibers are crushed and dispersed to form a layer of substantially uniform thickness and width. The layer of crushed fibers is conveyed as a continuous belt-shaped sheet layer, and adhesive is sprayed onto the crushed fibers. The sheet layer is then heated and compressed after being impregnated with the adhesive.

Abstract: A process for the preparation of unsaturated polyester resin based sheet moulding compounds in which the compound is matured by including a gelling agent for the copolymerisable monomer in the resin matrix and subjecting the sheet moulding compound to a temperature sufficient to cause the gelling agent to gel the copolymerisable monomer without activating the polymerisation initiator.