Abstract: A system and process for fabricating pressboard from shredded paper coated with a thermoplastic material and a pair of facing webs includes placing the shredded poly-coated paper between the two traveling webs to form a composite, the composite then being passed in a manner to heat the thermoplastic material above its softening point to differentially repeatedly shift the traveling webs linearly relative to each other and to the shredded paper for enhanced bonding of the shreds to themselves and to the facing webs by passing them around a series of heated rollers defining a serpentine path, and then pressing the composite together while curing to bond the components, and cooling the product.

Abstract: An apparatus for carrying rope handles for paper bags to a paper bag forming station is disclosed. The rope handles are supplied to the bags at the entrance of the forming station before forming the bags. The apparatus includes a first and a second plurality of gripping devices (36) for gripping the handles (34) fed by a handle forming station. The first and second plurality of gripping devices (36) are arranged substantially side by side at the entrance of the bag forming station towards which they move. At least one pair of units (94, 98, 104) for taking the handles (34) is located at the entrance of the bag forming station. Also provided are members (70, 78, 88, 92) to control the inhibition of the gripping devices (36) and the actuation of the units (94, 98, 104) for taking the handles (34) from the gripping devices (36) so that the handles (34) are fed to the paper bag forming station.

Abstract: Intended typically for slender tear strips, the automatic splicer comprises at least two supply reels wound with respective strips, the one in use and the other a replacement, set in rotation singly or together by a common drive, and feed wheels with peripheral grooves positioned with axes normal to the axes of the reels, by which the two strips are directed into a splicing station where the trailing end of the strip uncoiling from the reel in use is joined to the leading end of the strip uncoiled from the replacement reel; the splice is effected by means of a positioning and restraining component and a reference and reaction component stationed on either side of the strip in use, which can be drawn together until the ends of the strips are fully in contact, with the leading end of the replacement strip positioned and restrained in a longitudinal groove afforded by the relative component. The ends of the strips are trimmed automatically by separate cutters.

Abstract: An apparatus for taping joints between pieces of wallboard comprises a taping head, slidingly contactable with a wall, for substantially simultaneously applying a first layer of a joint compound to a joint between pieces of wallboard, embedding a wallboard tape in the first layer of the joint compound, and overcoating the embedded wallboard tape with at least one additional layer of the joint compound; a handle, connected to the taping head, for supporting the taping head, the handle being manually graspable by an operator, the handle having a fluid conduit formed therein for passing joint compound to the taping head; a tape supply mounted on the handle for supplying wallboard tape to the taping head; a backpack, wearable by the operator, for supporting a supply of the joint compound and for producing a pressurized stream of the joint compound; and a flexible connecting means for fluidically interconnecting the backpack and the fluid conduit to pass the pressurized stream of the joint compound from the backpa

Abstract: A heatable shoe for a joint welding apparatus for overlapping joint welding of asphalt roofing is designed in such a way that it will be able to produce a wave of liquid asphalt in an opening or slit between a front and a rear part of the shoe, thereby producing a maximum quantity of liquid asphalt inwards to a line approximately in the center of the overlapping portions between the roofing webs. This is where the mechanical fasteners are located, which are thus baked or embedded in and sealed by in liquid asphalt in a favorable manner.

Abstract: An apparatus and method are disclosed for securing elastic to a flexible backing for use in catamenial pads. The apparatus includes means for feeding the backing sheet onto a first drum having a plurality of surface grooves formed therein. The backing sheet is pulled into each of the grooves such as by a vacuum. A strip of elastic is then placed across each of the grooves and anchored at its respective ends. The backing sheet is then drawn off of the drum and extended so that the elastic is stretched to overlay the backing sheet. The apparatus further includes means for adhering portions of the elastic intermediate the anchored ends to the backing sheet while the elastic is in its extended position. The method for applying the elastic material to the backing sheet uses the apparatus discussed above.

Abstract: Mobile continuous tubular structure forming and placing apparatus includes a support portion, a row material supplying portion, a matrix forming portion, a tubular structure forming portion and a control portion. The raw material supplying portion includes a plurality of reservoirs connected independently with the matrix forming portion through conduits. The tubular structure forming portion includes a frame section and an arcuate blanket support associated with the frame section. A blanket transport is disposed adjacent the arcuate blanket support and aligned therewith, the blanket transport being movable from one end of the arcuate blanket support to an opposite end thereof. A plurality of spaced movable finger members are disposed along each longitudinal edge of the arcuate blanket support with interconnectors joining adjacent finger members.

Abstract: A mechanism for adjusting a distance between a glue machine and an introducing port of a heating port in a double facer corrugating machine is provided for the purpose of optimizing a penetrated amount of applied paste into a core paper sheet to insure a sticking force between a single-faced corrugated cardboard sheet and a liner. The distance adjusting mechanism includes guide rails and traveling wheels provided in the glue machine and running along the guide rails. In one aspect of the invention, the glue machine is adjustably moved along the guide rails by means of a hydraulic cylinder connected between the glue machine and a stationary frame, and in another aspect of the invention, the glue machine is adjustably driven along the guide rails by means of an electric motor mounted to the glue machine for driving the traveling wheels.

Abstract: A pasting machine in a corrugator which is arranged downstream of at least one single face corrugated cardboard machine and the heating section thereof including hot plates along which the webs to be glued to each other and being arranged on top of each other are guided while being compressed by pressing means being directed towards the hot plates from above, wherein the heating section is divided into at least two sections being arranged in spaced relation to each other in working direction, a glue station is arranged in the intermediate space between the hot plate sections and feeding means for a web being associated with the intermediate space are provided below the working level of the pasting machine.

Abstract: A continuous structural laminate includes a plurality of continuous generally parallel spaced integrally bonded porous blankets with a continuous polymeric matrix extending through each porous blanket. The polymeric matrices include solidified polymeric mixtures with each mixture including a polymer forming material, a gas foaming agent, a catalyst and a major portion of a particulate reinforcement. The polymeric matrices include compatible polymer forming materials. At least two of the blankets include polymeric matrices with differing particulate reinforcements. The continuous structural laminate is formed and applied with mobile apparatus including a support portion, a raw material supplying portion, a mixing portion, a matrix forming portion and a control portion. The support portion includes at least two base sections with carriages depending from a first base section including a plurality of spaced transverse axle assemblies and wheels mounted on free ends of each axle assembly.

Abstract: A method of continuously forming an extended length of a unitary structure includes the following steps. A supply of a porous flexible blanket is provided. A high viscosity flowable solidifiable mixture is continuously flowed simultaneously into an entire continuously moving width of the porous flexible blanket. Pressure is applied against the treated blanket to form a uniform matrix therewith. The rate of advance of the blanket is monitored. The rate of advance is coordinated with the flow rate of the mixture into the blanket and with the pressure applied thereto. A substantially flat non-porous flexible envelope is positioned along the length of the treated blanket. The envelope/blanket combination is positioned along a desired path. A pressurized gas is introduced into the envelope. The envelope is inflated to move the treated blanket into a final configuration. The non-porous envelope is maintained in an inflated state until the treated blanket is set in the final configuration.

Abstract: A method and apparatus for laying down a weft filament. The weft yarns are propelled over a moving substrate, whereupon they are clamped and pulled down into the substrate. The apparatus propels the filaments through an elongate hollow chamber where they are clamped by clamping means. They are then transferred from the chamber onto the substrate. By pivoting the apparatus the angles at which the filaments can be layed onto the substrate can be carefully controlled enabling hitherto unobtainable products to be produced.

Abstract: An apparatus for continuously manufacturing a sheet of molded compound includes a first conveying unit for continuously conveying a lower film. First and second impregnation rollers are provided above the lower film for impregnating a viscous material and a solid material to obtain a compound mixture to be dropped onto the lower film. First and second scraping rollers are provided below the first and second impregnation rollers to scrape the compound mixture from the impregnation rollers. A scattering roller is provided below the first impregnation roller upstream from the first scraping roller relative the feed direction of the lower film. The scattering roller is positioned to act upon rotation to prevent scattering of portions of the composite mixture caused at least in part by the first scraping roller. A second conveying unit is provided for conveying an upper film.

Abstract: A portable appartus for bonding non-adhesive edging or veneer to the edge of a board comprises an applicator for melt adhesive mounted to the frame of the apparatus and carried in advance of a supply of trim edging and roller means for pressing the trim edging against the board edge at a contact position and for drawing trim edging from the supply toward the contact position, as the appartus is moved manually along the horizontal edge of a board to be trimmed.

Abstract: To produce panes of laminated glass from two sheets of silicate glass (1, 16) and from an interlayer thickness of a plastic film (8) glued to the two glass sheets (1, 16), the liquid adhesive material intended for the two adhesive layers (2, 17) is applied each time in the form of a coherent and uniform film of a definitive thickness of the upper surface of the glass sheets (1, 16) oriented horizontally. The plastic film (8) is glued to one of the glass sheets (1) provided with the adhesive layer (2). The glass sheet (1) provided with the glued plastic film (8) is turned over so that the glued plastic is oriented downward. The two glass sheets (1, 16) are then juxtaposed by their front edges (20 and 21) and are joined by calendering by means of a pair of cylinders (22, 23) while maintaining an entry opening angle .alpha. of 2.degree. to 6.degree..

Abstract: Apparatus for applying plastic film material to a glass sheet has a first roller mounted for rotation about its longitudinal axis and having a rubber-like surface and a diameter of at least about 30 inches (75 cm). A second roller is mounted for rotation about its longitudinal axis adjacent to the first roller to form a nip between the first and second rollers. A length of plastic film material having adhesive on one surface is supplied under controlled tension to the first roller at a position remote from the second roller, with the opposite surface of the film material in contact with the first roller, to cause the film material to pass around a substantial portion of the circumference of the first roller to a position adjacent the second roller. The glass sheet is fed through the nip to cause the second roller to press the glass sheet towards the first roller and cause the film material to be adhered to the glass sheet.

Abstract: At a location between a single facer machine and a glue machine, a web of corrugated paperboard has the flutes crushed in a narrow zone longitudinally of the web. A bonding agent is applied only to the uncrushed flutes. Preprinted liners are applied to the bonding agent on the uncrushed flutes with the liners being spaced from one another by said narrow zone.

Abstract: In the manufacture of packing containers from laminated material contact between the inner layer of the material and the contents is avoided by doubling up the cut edges present in the packing container. It has proved to be difficult to perform a secure folding and sealing of the folded edge without damage to the material, since the outer, water-tight layer of the material consists of very thin, heat-sensitive thermoplastic. This difficulty is overcome by carrying out the folding and sealing of the edge of the material web gradually while at the same time supplying heat or glue. By supplying the sealing-promoting agent as late as possible during the course of folding, damage to the material as well as to the folding arrangement is avoided.

Abstract: A single facer machine of the vacuum or fingerless type for making a corrugated paperboard laminate. A new means for applying vacuum to the paperboard on the second corrugator roll. The second corrugator roll is provided with axially spaced circumferential grooves, the grooves being deeper than the flutes on the roll. Each groove is provided with a vacuum finger, coupled to a source of vacuum, each vacuum finger being curved at its intake mouth which sealingly engages the sides of its respective groove to supply vacuum thereto. The angular extent of the curved intake mouth is supplementary to the angular extent of engagement of the corrugated paperboard with the second corrugator roll.

Abstract: There is provided a single facer consisting of an upper roll, a lower roll, a pasting device and a pressure member in parallel with the lower roll for manufacturing single-faced corrugated board. The single facer is characterized by the provision of a suction conveyor having belts for conveying single-faced corrugated board, the suction conveyor being disposed at the side of another sheet in the transport passage of the single-faced corrugated board in the proximity of the engaging point between the lower roll and pressure member, thereby preventing the strip-off or separation of a contact portion between the corrugated sheet and another sheet by means of the structure, which is extremely simple and compact in form.

Abstract: In the process for the production of a glued joint for wood, the surfaces to be glued are held tightly together. At least one injection needle is driven into the wood up to a depth at which the outlet of the needle point comes into contact with the surface. The fluid adhesive is then driven under pressure through the injection needle and evenly distributed between the surfaces. The process is particularly suited for the production of window blind frames made of wood, in which the wood edges to be glued are joined by means of pins and slots. The process makes possible the production of joints of great strength, with very low tolerances between the pins and slots.

Abstract: A system for producing a relatively thin bitumen laminate comprised of an bitumen mastic core to which is adhered a fabric web on each side thereof, adherence being established simply by contacting the fabric web with the bitumen mastic while it is hot. The method includes continuous deposit at a fixed location of hot bitumen mastic to form the core on a moving lower fabric web, the laminated lower fabric web being in direct contact with a fluid cooled endless belt to prevent degradation of the fabric. The bitumen mastic is deposited on the lower web as it traverses the endless belt's upstream end roll, thereby insuring a firm, non-flexible surface upon which the mastic core can be sized by a doctor roll on the lower web. A moving top fabric web is laminated to the sized bitumen mastic core on the lower web at a location that is variable relative to the fixed location at which the mastic is deposited on the lower web.

Abstract: Apparatus is provided for the production of a corrugated pasteboard having a cover coating on at least one side. The apparatus includes a toothed corrugating element, a toothed corrugating counter-element co-operating therewith, a glue applicator and a drying apparatus. At least one corrugating element is an endless element (2) which loops at least partially around the other element (1). In this manner the noise generation and roll wear are reduced, the quality of the corrugated cardboard is improved, the paper consumption and difficulties of adjustment of parts of the apparatus are reduced and the feed and introduction of the paper web are facilitated.

Abstract: Apparatus for producing a bag of plastics material having an opening closable by a flap which is provided with a band of adhesive for securing the flap to the bag after closing of the opening, the band of adhesive being covered by a releasable strip of plastics material.

Abstract: In a corrugating system, a supplemental means for insuring that the liner and corrugated medium are properly conditioned with adhesive or bonding material along the entirety of its length and width of the bondable surface as the machine is starting up following down time to avoid subsequent board delamination.

Abstract: An apparatus and process for attaching elastic strips in elastic leg disposable diapers having gathered and extendible side portions in the crotch area during manufacture of such diapers in an assembly machine including mechanisms for alternately stretching and relaxing predetermined lengths of the elastic strips for adhesive attachment of the stretched lengths to the crotch area and the more relaxed lengths to the outer waist areas continuously along the edges of the diaper.

Abstract: A laminate composed of a web of carrier material and a thick layer of contact adhesive thereon wherein the thick layer is composed of a series of thin layers of contact adhesive which are bonded together. Methods and apparatuses are disclosed for preparing the laminate. Using such methods and apparatuses, thick layers of contact adhesive may be simply and economically produced.

Abstract: There is described a method for road surface marking with tape material, including the steps of applying a thin layer of an essentially liquid hydrophilous wetting agent on said surface, of forming an essentially bituminous primer layer thereon, and then pressingly laying a prefabricated tape material on said primer layer, such being formed with an essentially thermoplastic composition containing at least 60 % by weight of solid thermoplastic substances fluidified for intimately contacting the road surface, capable of fastly solidify at least to 10.sup.3 - 10.sup.4 cP for receiving the tape material, then up to at least 10.sup.5 cP to provide a bond of the tape to said surface capable to resist to horizontal stress of at least 1.5 kg/cm within 30 seconds, and further harden at ambient temperature to resist to a stress of at least 3 kg/cm. There are also described devices for applying such composition and tape and for melting the said solid thermoplastic substances.