Abstract: An automatic machine for producing corrugated sheet elements, particularly for packaging, thermal insulation, soundproofing and the like, comprising elements for continuously corrugating a first ribbon that moves longitudinally, a feeder for feeding a second flat ribbon in step with the first ribbon, and a device for joining one another the first and second ribbons in discrete regions.

Abstract: A method and apparatus for applying tabs to a traveling web of material at a transfer position when the tabs are provided to the transfer position in a path that is skew to the web travel path. A tab supply assembly carries the tabs in a tab path that is either perpendicularly skew or obliquely skew to the travel path of the web. The web is generally spaced from the tab supply assembly. A plurality of bump transfer surfaces is adapted to urge the web towards the tab supply assembly, thereby contacting a tab.

Abstract: A honeycomb containing a thermoplastic material, high modulus fiber and thermoset resin has process steps of fracturing the thermoset resin, bending, molding or forming the honeycomb in a mold or over a form, heating to allow flow of thermoplastic material and cooling of the honeycomb to retain the shape of the mold or form.

Abstract: The present invention relates to a single facer corrugator belt having a base structure. The base structure includes an inside and an outside surface and a machine or running direction and a cross machine direction. The base structure is formed by machine direction yarns and cross machine direction yarns and has grooves formed in a surface of the base structure. Alternatively, the corrugator belt may include includes holes formed in a surface of the base structure.

Abstract: The invention relates to a method for joining a number of sections (7) of a thermoplastic continuous web material in order to form an expandable section block (2). Said block is built up by repeatedly carrying out sequences of steps of the method. The invention also relates to a device for forming said blocks at high speeds.

Abstract: Methods of forming shaped adhesive fillets are disclosed. The adhesive fillets may be made by stacking multiple layers of adhesive sheets, consolidating the stacked layers, cutting strips from the consolidated layers, and forming the strips into adhesive fillets having desired cross sectional shapes. The fillets may be formed by feeding the strips through an apparatus comprising opposing rollers and a catcher, which facilitates release of the adhesive fillets from the rollers. The formed adhesive fillets are useful for applications such as stiffened panels for aircraft.

Abstract: A method and apparatus for applying tape tabs to a traveling web of material when the tape tabs are moving at a non-parallel angle to the web of material. An anvil that carries the tape tabs moves at a perpendicular or other non-parallel angle to the web. The invention allows placement of the tape tabs at different arrangements, such as the tape tabs running parallel to the web of material. A wheel with a protuberance located near the web contacts the web to press the web down and adhere a tape tap to the moving web.

Abstract: A process and apparatus are provided for applying double-layered rigidity strips to a sealable foil web which is transported in sequences. V-shaped loops are formed at predetermined foil sections set at a distance from one another in the web transport direction. The sides of the loops are subsequently sealed together in such a way that the thus formed rigidity strips, extending transversely to the direction of transport, project collar-like from the foil web. Each foil section at which a loop is formed, a controlled auxiliary loop is arranged which serves for adaptation to changes in format regarding the distances between the foil sections. A drum, having a relatively large diameter serves as a transport roller, which drum has devices arranged around its circumference for the purpose of forming a plurality of loops and auxiliary loops.

Abstract: The invention relates to a method for joining a number of sections (7) of a thermoplastic continuous web material in order to form an expandable section block (2). Said block is built up by repeatedly carrying out sequences of steps of the method. The invention also relates to a device for forming said blocks at high speeds.

Abstract: A carrying mechanism repeatedly obtains pieces of thermoplastic material from a supplying mechanism and provides them to a forming mechanism, where they are welded together to form a cellular block. In the forming mechanism, the piece to be added to the block and the piece most recently previously added to the block are arranged in opposing face-to-face relation, and then they are welded together by contemporaneously forming multiple spaced apart and elongate welds therebetween. The welding is performed by positioning heating elements between the piece to be added to the block and the piece most recently previously added to the block to heat laterally spaced apart strips of these pieces, withdrawing the heating elements, and at the same time rolling welding mechanisms along the strips so that the strips are nipped between the rolling welding mechanisms and other welding mechanisms.

Abstract: A process and apparatus are provided for applying double-layered rigidity strips to a sealable foil web which is transported in sequences. V-shaped loops are formed at predetermined foil sections set at a distance from one another in the web transport direction. The sides of the loops are subsequently sealed together in such a way that the thus formed rigidity strips, extending transversely to the direction of transport, project collar-like from the foil web. Each foil section at which a loop is formed, a controlled auxiliary loop is arranged which serves for adaptation to changes in format regarding the distances between the foil sections. A drum, having a relatively large diameter serves as a transport roller, which drum has devices arranged around its circumference for the purpose of forming a plurality of loops and auxiliary loops.

Abstract: A process for the continuous preparation of non-expanded honeycomb core from non-precorrugated web involves the progressive corrugation and consolidation of web by a corrugating/consolidating unit containing corrugating and consolidating elongate teeth which traverses a bed unit containing sets of former bars, forming a half cell height of honeycomb at each pass. A plurality of node-antinode demes of the topmost half cell layer being formed are consolidated while new corrugations and associated node-antinode demes are being formed. The process allows for more lengthy consolidation time, a smaller temperature differential between consolidating teeth and the node-antinode demes being consolidated, and further allows the corrugating and consolidation temperatures to be substantially independent of each other. The process may be implemented through use of a corrugating/consolidation unit having a travelling belt containing corrugating and/or consolidating teeth which may be individually and selectively heated.

Abstract: An apparatus, for applying a pressing tape to an object by applying pressure to the object, includes a pair of vertically movable members spaced at a certain interval. A tape-shaped material is traveled members and including a supporting tape carrying a pressing tape thereon. A pressure applying device is positioned between the movable members for pressing the tape-shaped member against an object. A tape feed-out device is provided upstream of one of the movable members for feeding out the tape-shaped material therefrom. A tape winding device is positioned downstream of the other movable member, for winding the tape-shaped material thereon. A tape feeding device is positioned between the other movable member and the winding device for feeding the tape-shaped material by a predetermined length by pulling the tape-shaped material. A first chuck is positioned on one movable member for chucking the tape-shaped material.

Abstract: A continuous process for producing honeycomb support structures by bonding a plurality of thermoplastic sheets together. The process comprises feeding, aligning, supporting and bonding thermoplastic corrugated sheets in sequence to build a honeycomb-structure of the desired dimensions. Bonding is accomplished by impulse heating through retractable support bars in cooperation with a movable heating/cooling platen, pairs of sheets to be bonded being indexed therebetween, in sequence, to bond one sheet at a time to form the multi-sheet structure.

Abstract: Fiber-reinforced thermoplastic honeycomb is prepared in a continuous manner one half cell at a time by laying down a corrugated web of thermoplastic, with and without fiber-reinforcement atop a honeycomb, selectively fusing the node-antinode demes and repeating the process until a honeycomb of the desired depth is prepared.

Abstract: A separator of T-section made from a unitary roll of single faced corrugated paper, and a method and machine therefore.

Abstract: Honeycomb materials having areas or volumes possessing different physical properties then the remainder of the honeycomb are prepared in a continuous process without requiring machining operations.

Abstract: Fiber-reinforced thermoplastic honeycomb is prepared in a continuous manner one half cell at a time by laying down a corrugated web of thermoplastic, with and without fiber-reinforcement atop a honeycomb, selectively fusing the node-antinode demes and repeating the process until a honeycomb of the desired depth is prepared.

Abstract: The method and the apparatus for manufacture of a light-proof and folded window curtain are disclosed. A plane curtain material is folded repeatedly into a plurality of folded parts of an equal width, which are subsequently joined together on the same side of the curtain to form close-knit shoulders through which the curtain holes are arranged at a predetermined position for accommodating a string. A positioning apparatus is employed to hold firmly the groove portions of the folded curtain material, so as to permit two adjacent folded parts to stay closely together. An adapting apparatus is subsequently used to form a shoulder of a predetermined width from two adjoining folded parts. A series of shoulders are formed from a plurality of groups with each containing two adjoining folded parts on the same side of the folded curtain material.

Abstract: An improved method and apparatus for forming cellular core structures from corrugated fibreboard utilizing flat sheets of single wall corrugated board of rectangular configuration. The sheets are fed end one at a time in the direction of the board flutes into a rotary die cutting station to form a parallel array of evenly spaced die cut lines extending perpendicular to the flute-feed direction from one side edge to the other side edge of each sheet. Each die cut line is defined by an alternating series of very long die cuts and very short die cuts individually spaced from one another along the die cut line by very short uncut sheet material connecting portions to thereby form a plurality of strips of sheet material intermittently integrally joined by the uncut sheet material connecting portions. An array of crease lines extend parallel to the flute-feed direction and are arranged in pairs of spaced apart in the direction of the die cut lines and closely flanking each of the uncut connecting portions.

Abstract: A corrugated member comprising a top web (2) and a carrier web (3) is manufactured by stepwise forward feed movement of the carrier web, with simultaneous deformation of the top web and joining of the two webs. At a shaping station (1), a deformation element (6) is first introduced between the top web (2) and the carrier web (3), and the top web is pressed against the carrier web by a first pressing means (4), downstream of the deformation element. Then, upstream of the deformation element (6), the top web (2) is pressed against the deformation element by a second pressing means (5), stretched over the deformation element, and joined to the carrier web (3).

Abstract: In apparatus for producing a corrugated element, each pressing device for deforming a top web of the corrugated element has a separate guide means which is adjustable relative to a plane extending transversely with respect to the direction of forward feed movement of the webs. Each guide means is secured together with drive transmission for its pressing device to a plate. The plates can be adjusted by adjusting screws on opposite sides of the webs, thereby permitting the pressing devices to be adapted to specific operating conditions.

Abstract: An apparatus for manufacturing a roof lining for automobiles includes a sheet feeding section, a loop forming section, a welding section, and a cutting section. From the sheet feeding section, a sheet made of thermoplastic material in a predetermined length is fed to the loop forming section wherein an U-shaped loop is formed on the sheet and a wire pocket is then automatically formed by the welding section so as to insert a resting wire therethrough. To facilitate inserting the resting wire, the wire pocket is partly cut off by actuating cutter arms in the cutting section.

Abstract: An apparatus and method is disclosed for attaching a continuously moving elastic ribbon to a continuously moving web such that only selected discrete areas of a finished conformable garment fabricated from the web are elasticized. The web is moved into engagement with a continuously moving first conveyor means having a plurality of spaced apart gaps in its surface and the first conveyor means travels along an inclined guide means toward a second conveyor means traveling opposite to and in the same direction as the first conveyor means. The second conveyor means carries a plurality of spaced apart web tucking means which are moved by the second conveyor means into registry with the gaps in the first conveyor means. As each of the web tuck means move in registry with the gaps, the web tuck means are inserted into the gaps to form tucks in the web due to the movement of the first conveyor means toward the second conveyor means.

Abstract: A method for making a fiberglass truss has features that eliminate the need for a mold. The method includes first a step of tensioning a pair of spaced-apart filaments strips to define the chords for the truss. The chords are interconnected at several points along their lengths with a strip of filaments for defining triangular bracing or a web for the truss. Tension is applied to the strips to secure the chords and web in place. Then the chords and web are coated with resin. After hardening, the tension is removed. In one method, the chords are tensioned between two end walls of a container. The intersecting points of the web and chords are restrained against lateral movement by means of retaining devices mounted to two oppositely facing side walls. Triangular spacer elements define passageways for the chords and web. The container is filled with resin after the chords and web have been placed and tensioned. After impregnation, the container is drained. The completed truss may be removed after hardening.

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: An apparatus and method for providing permanent pipe sections in a foam-backed material that utilizes two rotating members which cooperate to form alternate ridges and valleys in the material after which the valley portions are bonded to a backing sheet so as to maintain the pipe sections in the material.