Abstract: An improved method for forming a strip material and subsequently inflating and sealing the strip material at the site of its intended use to form cushioning material. Two heat sealable films are fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway extending the length of the strip material between the rows, with each of the chambers having an inlet opening narrower than the main portion of the chamber communicating with the passageway. The strip material is shipped uninflated to the site where the cushioning material is to be used. The strip material is then inflated by propelling the passageway in the strip over an air nozzle to inflate the chambers through their inlet openings, and the inlet openings are then sealed after the films are first pressed together and tensioned around the area to be sealed to both insure a wrinkle free seal and insure that air pressure in the chamber will not rupture the sealed area while it is hot.

Abstract: An individual chip joining machine is designed primarily to bond a single chip to a multi-chip substrate. The machine includes an X-Y table for moving a substrate to locate a chip site beneath a probe. The probe serves to pick up a chip and either place it on the substrate or remove it therefrom and further serves to heat the chip to join it to the substrate by solder reflow or to melt the solder and allow the chip to be removed. The probe is mounted on a Z direction placement mechanism that also includes means to allow the probe to be backed off a fixed distance from a chip, once the chip has been placed on the substrate preparatory to joining thereto. A second heater heats the substrate to a bias temperature, this heating being controlled through use of a surrogate substrate having a thermocouple attached thereto.

Abstract: The book cover applicator is suitable for use in applying covers to multiple sheet fillers which have been secured together along the spine by a hotmelt adhesive. The applicator comprises means for holding the filler and cover at a bonding station and bonding means mounted adjacent the bonding station, the bonding means including a heater bar for applying heat to melt the hotmelt adhesive, and a set bar for holding the cover square up against the filler and conducting heat away from the adhesive for a fast and perfect set. The hotmelt adhesive provides a strong, flexible bond between the filler spine and the cover.

Abstract: A machine comprising a stack of cards, a stripping feeder for stripping the bottom card from the stack and moving a series of such cards with an intermittent motion to a series of feed rollers which convert such intermittent motion into a constant velocity and for spacing the cards one from another. A tape coated with magnetic material is laid on the surface of each card by a guiding device after the card has passed through the feed rollers and the combination is fed between a heated roller and a reaction roller which are driven synchronously with the cards. The heated roller is pressed against the cards at a constant pressure exerted by an air cylinder to seal a portion of the magnetic coating to each card.

Abstract: Pipe is coated by extruding a band of heat-softened thermoplastic, cooling the band and passing it through tension-isolating snubber rolls then applying it to the surface of the rotating, advancing pipe under tension, and controlling the tension isolating snubber rolls and rate of movement of the pipe surface with respect to the rate of extrusion to provide substantially controlled tension on the band between the extruder and the tension isolating means and to provide a second, higher tension on the band between the tension isolating means and contact of the band with the pipe surface.

Abstract: Hollow, thermoformed plastic shell members for use as panels and doors in the manufacture of cabinets and other furniture are easily and quickly assembled to rigid backing boards by guiding the boards, to which an adhesive edge coating of hot melt adhesive has been applied, into recesses in the shells. The guides comprise thin, resilient sheet metal members. A heated block at the inlet end of the guide path and a cooled block at the exit end result in the hot melt adhesive being properly applied and then quickly set.

Abstract: The installation produces a material, as a prefabricated flexible foil, for finishing and decorating buildings, of the type in which a cover with several layers of granules, spread upon a supporting net, has the granules bound to each other and to the yarns of the supporting net by invisible fine pellicles of a thermoplastic synthetic resin binder.

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: An apparatus for preparing multi-laminated sheets comprises a first sheet feeding unit, an adhesive coating unit, a drying unit, a second sheet feeding unit, a superposing unit, a molten film extruding unit, a press-bonding unit and a take-up winding unit.In the drying unit, an uncoated surface of the first sheet coated with the adhesive composition is contacted with a cooling roller and a plurality of hot air nozzles are arranged to face to the coated surface of the first sheet and the nozzles and the cooling roller are covered with a cover having an outlet of the gas whereby the adhesive composition coated on the first sheet is dried with hot air under cooling the back surface of the first sheet.

Abstract: Apparatus for producing tubes by helically winding strips of thermoplastics synthetic sheet material, comprising a double-shell coolable draw-off mandrel onto which, immediately after its extrusion through a slit nozzle or after being heated to a workable state, the sheet material is wound spirally in overlapping manner in such a way that it is formed into a tube with an obliquely extending winding seam, pull-off apparatus to cause and permit axial and rotational movement of the tube relative to the draw-off mandrel and cooling means to act directly on the sheet material wound into a tube on the draw-off mandrel. The double-shell draw-off mandrel can be cooled by liquid coolants circulating through a closed cooling system and between inner and outer shells of the mandrel. Conveyors extending longitudinally of the mandrel and laterally overlapping with one another can be provided to reduce friction between the tube and the mandrel.

Abstract: Apparatus for joining at least two axially abutting rods of the cigarette industry comprises means for delivering the rods to a rolling drum, a rolling device mounted adjacent to the drum to roll the rods with respect to the drum, and means for applying a hot-melt adhesive to the rods to produce a bonding film which overlaps the adjacent ends of the rods and extends at least around a major part of the circumference of the rods.The adhesive may be applied by a nozzle directly to the rods, or may be applied initially to the drum as a film which is then picked up by the rods.

Abstract: Heat sealing apparatus is provided in which a heat seal head defines longitudinal slots which underlie a wire heating element and communicate with a cooling fluid path to provide rapid cooling to the heating element. The longitudinal slots have a width that is narrower than the width of the wire to provide wall supports on opposite sides of the wire.

Abstract: A partially cured flexible vulcanizable core useful in the manufacture of hose, for instance, is produced by passing the vulcanizable core through a microwave zone while simultaneously contacting only the outer surface of the core with a cool stream of fluid, so that the core becomes substantially cured with the exception of a layer at the outer surface of the core, which remains substantially uncured.

Abstract: According to the present disclosure a method is provided wherein tubular thermoplastic material is intermittently fed between opposed transversely extending seal bars operating in timed relation with the intermittent feeding of the web to sequentially perform cutting and sealing of the web during its period of repose. To insure a clean straight transverse cut, which occurs momentarily before transverse sealing, the web is held under tension between longitudinally spaced draw and feed rolls. Immediately after the web is transversely severed, the seal bars are brought into pressure engagement transversely sealing the web along a margin which will define the bottom of the bag. While the sealed portion of the web is at the sealing station, cooling air is discharged along the sealed portion of the web to effect cooling. Before the web is fed an additional increment, it is momentarily fed rearwardly to avoid the possibility of adherence to the seal bars.

Abstract: A label is placed in due contact with the surface of an article being extruded and then forcibly urged to a preselected depth in the plasticized article. The label and the article are thereafter cooled.

Abstract: A process and apparatus for making laminated sheets in which a fusion adhesive is applied to both sides of a sheet core, the melting point of the adhesive being below the conversion point of the sheet core, the core being provided with covering sheets, heated to the melting point of the adhesive, moulded and cooled.

Abstract: Disclosed is a method and an apparatus for manufacturing an even laminated product by extruding a molten thermoplastic coating material track onto a basic-material track. The edge strips of the coating material track are cooled by means of jets of heat absorbing material to keep the said edge strips of coating material from adhering to the basic-material track. The edge strips of each track are then cut off said tracks, chopped separately, and directed separately for recovery.

Abstract: An apparatus for making a flexible non-skid strip of flattened semi-circular cross-section.

Abstract: A conductive element is covered with an insulating material which is cooled within a predetermined temperature range, and preferably near or at ambient, by moving the conductor first through a cooling trough and then in a plurality of convolutions about spaced grooveless rollers which comprise a capstan. The length of the cooling trough is such that the insulation is not deformed as it engages the capstan and the number of convolutions wrapped about the capstan which is subjected to a cooling medium are determined to insure that the temperature of the conductor exiting from the capstan is at or near ambient.

Abstract: Plastic bags are obtained from a tubular foil of thermoplastics by means of heatsealing. The heatsealing member acts upon a lower wall of the flattened non-tensioned tubular foil, and without a counter pressure to the upper wall of the foil. The entire thickness of the lower wall is plasticized but only a portion of the thickness of the upper wall is plasticized. The assembly of heated lower wall and partly heated upper wall facing each other is passed through two pressure rolls, the roller surface contacting the surface which has not been in contact with the heat sealing member consisting of metal is cooled.

Abstract: Means and method for preventing distortion in ultrasonic pattern rolls used for quilting layers of thermoplastic material by ultrasonic energy, whereby uniformity of seal quality is maintained. The method contemplates the distribution of heat generated in the roll during warmup over the entire mass of the roll to eliminate distortion from true cylindrical shape, whereby the tendency of the roll to bow out of round resulting in high and low areas with each revolution and the formation of correspondingly uneven welds is eliminated.

Abstract: The present invention relates to a method of manufacturing from paper and other similar fibrous materials cylindrical tubes comprising an inner, dense, liquid-tight plastics foil layer, in which method at least one paper web and a plastics foil web are wound helically together on a rotating mandril with the plastics foil web located against the forming surface of the mandril, and in which the plastics foil web is bonded to the paper web by means of an adhesive. The invention also relates to an apparatus for carrying out the method.

Abstract: A sealing machine for polyethylene bags, having bag clamping and conveying chains, a pair of bag heating bands, a pair of bag cooling bands downstream of the heating bands, the adjacent heat transfer runs of both the heating and cooling bands having ends offset from each other in the direction of band movement, the band mounting wheels at each end of both bands being similarly offset, the adjacent heat transfer runs of the heating and cooling bands also lying parallel and flush against each other from end to end, stationary heat bars adjacent the heat transfer runs of the heating and cooling bands at which the bars respectively generate and absorb heat, and each heat bar having a plurality of very lightly spring pressed heat transfer elements or slides continuously engaging and transferring heat between the adjacent band and heat bar.

Abstract: A sheath for battery electrodes is made by introducing a fibrous tubular material along a mandrel. A perforated thermoplastic material is applied around the outside of the fibrous material. Subsequent to applying the fibrous material, the mandrel is heated, thereby heating the fibrous material. The latter heats and softens the inside of the thermoplastic material at their points of mutual contact. The thermoplastic material is then subjected to external pressing forces and external cooling temperatures to press the thermoplastic material against the fibrous material while cooling the thermoplastic material.

Abstract: A method for flat pressing and sticking down of a fillet seam of a roof-shaped folding closure of a package whose outside surface is provided with a thermoplastic material, comprising transporting the package in a direction transverse to the fillet seam, heating a first area of the side surface of the fillet seam rearward of the seam relative to the direction of transport and heating a second area of the outside surface of the package complementary with the first area, and transporting the heated package past a stationary member positioned so as to press the fillet seam and cause it to stick down to the outside surface of the package. A third and fourth area respectively on the side surface and on the package and respectively spaced from the first and second areas can also be heated to form two spaced stuck down areas. By pulling upward therebetween, the seam can be raised for opening the package.

Abstract: A precision thermoplastic winding method and apparatus for forming heterogeneous pipe by winding a first hot thermoplastic strand on a mandrel, then applying a second strand of uncured thermosetting material on the first layer to form a second layer on the mandrel, and thereafter helically winding a hot thermoplastic strand on the second layer to form a third layer on the mandrel and to thus seal and cure the second layer of thermosetting material.

Abstract: Impulse sealing apparatus having a forced cooling cycle following the impulse heating cycle, and comprising in combination, a vortex tube which converts a source of compressed gas at ambient temperature into a cold gas stream, a heat exchanger cooled by the cold gas stream generated by the vortex tube, a second source of pressurized ambient temperature gas communicating with the heat exchanger and cooled thereby, and means for removing the second source gas stream from the heat exchanger and communicating with the impulse sealer for supplying chilled gas thereto.

Abstract: A cartridge such as a caulking cartridge is formed of extruded and injection molded resin parts assembled and welded together. A resin tube is extruded and cut off in lengths to form cartridge barrels, and single-piece resin end caps and nozzles are injection molded. The barrel cylinders are fed to an assembly station where the end caps and nozzles are fitted over one of the severed ends of the barrel cylinders in concentric registry with the barrel cylinders and are successively welded to the barrel cylinders to form cartridges.

Abstract: The end closure apparatus is incorporated in the cylinder of a circular knitting machine in surrounding relation to tubular knit fabric advancing from the knitting needles. The apparatus includes constricting elements that are operable simultaneously to close radially on the surrounded tube to constrict it into a compact substantially solid mass. Each constricting element is formed with an intermediate slit so that the elements constrict the fabric at two zones with a space therebetween for heat severing and sealing operation of an electrical resistence heating tool that moves in the slits through the mass of fabric between the zones and dwells thereat to complete sealing and form a small disc-like heat set closure core connecting the yarns of the fabric into a closed end both on the severed tube portion and on the tube portion remaining depending from the needles of the machine.

Abstract: The overlapping edges of a continuously formed tubular configuration of plastic web are fused together between a backup ring and a sealing roller continuously heated by hot air directed against the periphery of the roller. When the heated roller is pressed in sealing engagement against the overlapped edges of the moving film it is rotated due to the frictional engagement of the roller with the film. A portion of the hot air impinges on blades extending laterally from opposite sides of the roller to apply torque thereto and thereby keep the roller spinning whenever the roller is out of frictional engagement with the overlapped edges of the continuously advancing web. By keeping the roller spinning it is evenly heated and hot spots are not allowed to develop as they would if the roller stopped while hot air continued to impinge on it. Cooling air is applied to the sealed overlapping edges after the sealing operation has been performed.

Abstract: A resilient, thermally bonded, non-woven fibrous batt having a uniform compression modulus in one plane which is more than the compression modulus measured in a direction perpendicular to that plane, and a substantially uniform density across its thickness is obtained by preparing a batt comprising at least 20% by weight of crimped and/or crimpable conjugate fibres having or capable of developing a crimp frequency of less than 10 crimps per extended cm. and a decitex in the range of 5 to 30. The batt is thermally bonded by subjecting it to an upward flow of a fluid heated to a temperature sufficient to heat the batt to a temperature in excess of the softening temperature of the low softening component but below the softening temperature(s) of the other component(s) of the conjugate fibre to effect inter-fibre bonding. The thermally bonded batt is then cooled by an upward flow of cool air.

Abstract: The present invention provides a method and apparatus for the manufacture of generally rectangular plastic bags from a gusseted or flattened tubular, supply stock where the bags terminate in heat sealed closure at the bottom and the end opposite the bottom is generally open.

Abstract: Efficient heat sealing, particularly of thicker and/or heat shrinkable plastic materials, is obtained using a fluid heated and cooled heat-sealing member having a body of a material of low thermal conductivity and a strip of material of high thermal conductivity communicating with a heat exchange fluid passage therein.

Abstract: Improvements in apparatus for stacking bags, particularly plastic bags, disposed at the outlet of a machine for manufacturing bags and comprising two sealing jaws of which at least one is mobile and of which the other has an edge extending downstream of said jaw and against which may abut a member for supporting the clamping of one of the ends of the bags after they have been cut in order to form a packet of bags assembled by sealing by means of a heating resistance disposed on the edge of the jaw. A means for sucking out the air and the hot gases is disposed opposite the support member 8 and beneath the edge 7 extending the sealing jaw 4. The invention finds application in a bag-making machine, for stacking the bags.

Abstract: A system is disclosed for applying plastic labels on cylindrical can bodies which includes moving the cans end-to-end in a continuous series through a forming horn over which a strip of heat-shrinkable sheet plastic is drawn to form the plastic strip into an envelope around the cans with the opposite edges of the strip adjacently disposed longitudinally of the cans, welding the opposite edges of the plastic strip to form a tube around the series of cans, heating the plastic tube to shrink it against the cans, severing the plastic tube between cans to separate them into individually wrapped cans, and further shrinking at least the ends of the plastic tube into snug engagement against the ends of the side wall of each can.

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 method of and apparatus for the manufacture of an electrowelding component of synthetic material comprising a resistance element, in which in a first process phase the component is formed and in a second process phase the resistance element is fixed in place, the adhesion between component and element being achieved by heating the element by electrical energy.

Abstract: A system for the production of large-diameter hollow bodies from a thermoplastic synthetic resin in which a synthetic-resin hollow-profile strip is extruded and coiled helically so that adjacent turns of the helix are butt-welded together at least in part with the extrusion heat. The synthetic-resin hollow-profile strip has a generally rectangular external cross-section and a substantially round inner cross-section (of the passage) and a cooling fluid is introduced into this passage upon extrusion, and is circulated through the passage at least over a portion of a turn of the helix.

Abstract: A simplified, low-cost method and apparatus for transferring inked design images from preprinted, design bearing waxed sheets to elongated, cylindrical, solid wax candle bodies or the like which permits gravure or lithographically applied halftone and shaded design images to be used as candle decorations, eliminates costly and tedious manual operations characteristic of decal applications and other prior methods and devices, and produces a finished candle having perfectly aligned decorative images thereon which are not susceptible to undesirable torching as the candle burns. The method comprises applying a design-bearing, waxed sheet to the candle body in closely conforming relationship thereto while the latter rotates in pressurized, bridging engagement between a pair of spaced, adjacent, rotating transfer rollers.

Abstract: A fibre felt forming die assembly and method employ a mandrel having an external forming surface, an outer die extending around the mandrel and having an internal forming surface spaced from the mandrel external forming surface to define a gap for the advance of a felt therebetween. A heater is provided for heating the mandrel to thereby heat and at least partially cure the felt at and adjacent a surface of the felt facing the mandrel as the felt passes through the gap, and hot gas is then discharged through the entire thickness of the felt to further cure the felt. To counteract deposition of bonding material from the felt on the mandrel, an arrangement is provided for cooling the felt prior to the heating of the felt by the mandrel, so that the felt undergoes a rapid temperature transition.

Abstract: An apparatus for producing decorative building material of the type in which granules of rock are bonded to a supporting net with a synthetic-resin binder, comprises a device for dipping a web of the net in a vat of the priming liquid which can consist of an aqueous dispersion or solution of the polymer containing powder of the granules. The priming coating is squeezed out and the granules are deposited on a conveyor, whereupon a spray head deposits the synthetic resin upon the granule-coated net. The latter is then passed through a drying tunnel on a conveyor through which the web is heated by gas-fired infrared heaters and the web is then compressed between rollers and cooled.

Abstract: A hot air heat sealing apparatus for sealing together two layers of heat softenable plastics material comprising a fan, ducting arranged to divide the air stream from the fan into at least two flows, a heater disposed in the path of one of said flows, means by which air heated by the heater is directed in use onto the layers of plastics material thereby to soften said layers at a region thereof where they are to be sealed together, a pair of rollers arranged to nip the softened layers together to produce a seal, one of said pairs of rollers being mounted for pivotal movement radially relative to the other roller of said pair, means for pivotally moving said one roller whereby the nipping pressure exerted by the rollers can be varied and plastics material layers of different thickness can be accommodated and means for varying the inclination of the axes of the rollers relative to one another, whereby said axes can be brought into parallelism, and guide means disposed in the path of the other of said flows for

Abstract: An improved system and a device for providing air inflated cushioning material which is filled and sealed at the site of its intended use, such as at a packaging line. Included is an elongate flexible layered strip material comprising two heat sealable films fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway extending the length of the strip between the rows, with each of the chambers having an inlet opening narrower than the main portion of the chamber communicating with the passageway. The strip is shipped uninflated to the site where the cushioning material is to be used, and is then inflated on the device through which the passageway in the strip is propelled over an air nozzle to inflate the chambers through their inlet openings.

Abstract: A conveyor and a cooling table define a path of advance for assemblies comprising two or more sheets of glass of the same dimensions held in juxtaposition and at a fixed spacing by a clamping jig. Heating means heat an edge of the glass sheets and are followed by a nozzle which injects a fusible sealant bead between the sheets along that edge prior to cooling at the cooling table of the bead so formed. A crank and associated clamps rotate the assembly about its corners for application of the bead along successive edges.

Abstract: There is disclosed a water cooled support bar comprised of a pipe within a pipe which assures the axial position of a cylinder-like sleeve of heat shrinkable foam thermoplastic material on a glass container during transport from an assembly station on a turret machine into a tunnel-type oven and until the thermoplastic sleeve shrinks sufficiently snugly onto the container to be held thereby. Polyethylene material, and perhaps other polyolefins, have the tendency to become more pliable and grow or enlarge under heat prior to actually shrinking. It is during this initial heat-up time the invention serves to retain the sleeve form in place on the container. The support pipe includes a Teflon or like lubricious surface layer at least along the side thereof adjacent the plastic sleeve lower edge. The lubricious surface layer combined with water cooling prevents sticking of the plastic on the support bar.

Abstract: Method and apparatus for producing a synthetic resin tube by deforming a strip of synthetic resin and joining both laterally disposed edges of the deformed strip together while transporting the strip in its longitudinal direction.

Abstract: The production of composite structural products having high sound-proofing characteristics by impregnating a mat of fibers of substantial length with an organic thermoplastic resin containing an expanding agent, and thereafter heating the treated mat. The resin is partially jelled during the initial stage of heating and the expanding agent is dissociated during the later stage of the heating, which results in a controlled swelling of resin while the resin completes the jelling thereof while the product attains its predetermined density. Upon the cooling of the material it is transformed from a plastic to an elastic state, especially in the direction of thickness of the product.

Abstract: Apparatus for sealing together portions of material having a sealable plastics coating includes opposed jaws each carrying a guide rail with a slot to receive marginal edges of the material and to spread these edges apart. Hot air is blown onto the spread apart edges to soften the plastics material. The edges are then urged together to form a seam which is accurately defined by the jaws.

Abstract: .Iadd.A method and apparatus for manufacturing a tube to be used for forming plastic reclosable bags including means for extruding a continuous annular tube of plastic with circumferentially spaced axially extending interlocking rib and groove profiles on the surface from a die shaped to form the tube and profiles, means for delivering tube separating air through the die into the tube interior, means for delivering a flow of outside cooling air around the outer surface of the tube to cool the tube at a rate to maintain the profiles on the surface of the tube and drawing means positioned for receicing the tube and drawing it from the die and flattening it. .Iaddend.

Abstract: For the production of screw fasteners with plastic patches thereon, the fasteners are preheated to a high temperature. Each heated fastener pauses at a processing station where a predetermined increment of a plastic strip is severed and dropped onto the hot fastener and as the plastic melts a pressure shoe forms the plastic to the curved cross-sectional configuration of the fastener. The fasteners are then quenched. For high production a number of the fasteners are processed simultaneously on each of the repeated cycles of operation. The apparatus is readily adjustable to handle fasteners of different sizes.