Abstract: A filter insert and a method for producing the same in which the filter insert has an accordion-folded filter medium. In a first operating step, folded edges are impressed on the filter medium. Subsequently, by glue application devices which are provided with glue application nozzles, at least two glue beads are applied to the surface of the filter medium and the folding is carried out subsequently. At least one of the glue application devices is movable transversely to the transport direction of the filter medium.

Abstract: A machine for manufacturing a sheet of corrugated board by gluing a fluted sheet of board onto a liner sheet of board includes: a fluted cylinder, a central fluted cylinder equipped with an assembly for applying the fluted sheet against its periphery, a smooth cylinder for bringing the liner sheet into contact with the crests of the flutes of the fluted sheet, and a motorized smooth heating cylinder situated downstream of a path of the corrugated board and entirely at distance from the first three cylinders; an assembly for controlling and adjusting the rotational speed of the motorized smooth heating cylinder; and an assembly for adjusting and maintaining during operation the pressure of the liner sheet on the flutes of the fluted sheet over a line of contact below 3 kg/cm. The fourth cylinder presses the fluted sheet onto the central fluted cylinder over an circular arc corresponding to a subtended angle between an order of 30.degree. and an order of 80.degree..

Abstract: To provide a corrugating roll for a single facer which avoids generation of press marks or fracture of paper without a loss of paper by suppressing a contact pressure between a corrugating medium and a liner paper, and which may manufacture the corrugated paper in a low cost with easiness of machining work, in a corrugating roll for a single facer, in which a pair of corrugating rolls engage with each other through a tooth form in parallel to roll axes on circumferential surface portions of the rolls, a profile of a tooth tip portion is composed, in combination, of a plurality of arcs that are symmetrical with respect to a tooth apex portion. The profile of the tooth tip portion includes the tooth apex portion and is constituted in combination by a first arc having substantially the same radius of curvature as that of an outer circle of the corrugating roll.

Abstract: A lampshade is manufactured from heat deformable sheet material by forming a blank of the sheet material, in the shape of a sector of an annulus, into a hollow truncated cone having upper and lower peripheral edges. The overlapping edges of the blank are welded or bonded together and the blank supported by an apparatus which engages the interior of the conical blank, which apparatus includes an upper former for engagement with the interior surface of the blank adjacent the upper edge thereof and a lower support, releasably supporting a stiffening ring around its periphery, for example magnetically, so that upper marginal edge portion of the blank projects beyond the upper former and so that the lower marginal edge portion of the blank projects beyond the stiffening ring supported by the lower support.

Abstract: To implement a process for operating a device for making labels from strip material with a roll (1) of strip material, a feed device (2, 3) for the strip material, clamping tongs (16) to take the end of the strip from the feed device, a folding sheet (23) which inserts the strip between the jaws of positioning tongs (8) which transfer it to a processing device, and a separating device (7) to separate the strip from the strip material, by means of which strips of different lengths can be simply folded and processed, it is proposed that the movement cycles of the components of the device are controlled in such a way that, after the end of the strip has been transferred to the clamping device, first of all the folding device advances towards the positioning device, then the separating device (7) separates the strip from the strip material upstream of the feed device (2, 3) and either the positioning device closes and secures the folded strip while the folding device returns to the initial position, or after the

Abstract: A method for the production of environmentally compatible decorative labels, which are produced without using a PVC film, is described. The method involves the application of an embossing film, which is capable of transferring heat, on a substrate comprising a separation paper, an adhesive layer, and a plastic film made of homopolymers or copolymers of ethylene with a crystallite melting point (DIN 53765) of 110.degree. to 120.degree. C., a heat of fusion (DIN 53765) of 125 to 180 J/g, melt index (DIN 53735) of 2.0 to 3.5 g/10 min. The embossing film contains a melt adhesive layer that can be activated at 110.degree. to 230.degree. C. The embossing process takes place at a temperature of 110.degree. to 230.degree. C. under a pressure of 1.0 to 7.0 bar for a period of 3 to 0.3 sec.

Abstract: The invention concerns a process and equipment for manufacturing laminated photovoltaic modules, where (a) a module-stack (2) formed by the system of solar cells, the encapsulating materials and the separating foils is deposited at the loading station (1) and where (b) the module-stack (2) is moved into the vacuum laminator (5) which thereupon is closed and evacuated, and, by pressing the heater plate (21) against the thermally conductive carrier plate (3), said stack is heated to the softening point of the plastic sealing layers present in the encapsulating materials, and where (c) following airing of the vacuum laminator (5) the heater plate (21) is not cooled and the formed composite (2') is moved into the hardening oven (10) and where (d) the hardened laminate (2") is then moved into the cooling zone (12) and (e) is removed from the manufacturing process at the removal station (14). The process stages (a) through (e) of the invention are carried out simultaneously and parallelly in timed manner.

Abstract: A cylindrical filter is formed from a sheet of filter material which includes two connected layers of filter media. Opposed edges of the sheet are joined to form the cylinder by separating the media adjacent the edges and then sealing together the first of the separated layers followed by sealing the second of the separated layers. The two seals are spaced inwardly of the edges and are spaced from one another. In this way, failure of one seal does not result in failure of the cylindrical filter.

Abstract: A method of producing a sign having raised colored characters arranged in a predetermined design. A male die is provided presenting the predetermined design; a substrate sheet is positioned over the male die; the substrate sheet and die are passed between pinching rolls to emboss the substrate sheet with raised areas corresponding to the predetermined design; a color transfer sheet is positioned over the embossed substrate sheet; the embossed substrate sheet with the color transfer sheet positioned thereover is passed between pinching rolls to transfer color pigmentation from the color transfer sheet to the raised areas on the embossed sheet and "tip" the raised areas; and the embossed color tipped sheet is secured to a sheet of relatively rigid base material.

Abstract: A method and apparatus are provided for forming pleats in a thermoplastic material by feeding a continuous web of sheet-like thermoplastic material to a pleat forming apparatus and subsequently drawing the web through a bonding device. The pleat forming apparatus includes a rotating drum that has a plurality of apertures and a plurality of radially extensible teeth positioned in peripheral slots. The teeth are spring-biased inwardly to a retracted position within the drum but are extendable, under the urging of an internal cam, to a position wherein a portion of each tooth protrudes outwardly from the drum. The web is carried around the drum and the teeth protrude into the web forming pleats.

Abstract: In order to provide, during final production, the raised symbols of reflectorized motor vehicle license plates permanently with paint in the hot-embossing process, and to be able to use therein a narrower and thus less expensive, heat-releasable paint layer provided on a synthetic resin carrier film, it is suggested to create the coloring of the rim already prior to cutting off the blank of the license plate and prior to embossing the plate rim.

Abstract: A disposable pallet made up of paperboard or like material. The components of the pallet include a plurality of base members and a plurality of cross beams which are interlocked in a skeletal-type structure having novel intersections at their cross over locations. A new pallet component and a method for making the pallet are disclosed.

Abstract: A membrane press and method of elevating a three-dimensional workpiece are provided. The membrane press includes a work base having a supporting surface for carrying the workpiece. A foil-pressing frame is positioned above the workpiece for heating and applying a laminating foil to the workpiece. A plurality of fluid actuated pedestal assemblies are positioned for movement between a workpiece-loading position and a workpiece-lifting position above the supporting surface of the work base. Fluid passages communicate with the pedestal assemblies, and fluid pressure control means. The control means selectively directs a flow of fluid to the pedestal assemblies in response to the loading of the workpiece onto the supporting surface of the work base.

Abstract: A system and method for reducing the occurrence of undesirable deformations (e.g., wrinkling) in a reinforced thermoformable workpiece. The reduction in undesirable deformations is achieved by increasing the buckling resistance of the workpiece by employing a supplemental reinforcing structure. The reinforcement, in combination with a pair of shaping diaphragms, increase the effective buckling resistance applied to the workpiece during the fabrication of a composite product. The method includes forming a workpiece from a plurality of layers of a thermoformable material, and applying to at least one side of the material an external reinforcing structure to form a reinforced workpiece having a top side and a bottom side. At least one of the top or bottom sides of the reinforced workpiece is placed in contact vith a diaphragm, thus forming a shaping assembly.

Abstract: The heat insulator of this invention comprises a thermoformed open cell rigid polyurethane foam core enclosed in a gas barrier material and evacuated. The method of this invention comprises heating an open cell rigid polyurethane foam at a temperature not lower than the temperature at which its storage modulus of elasticity begins to decrease and enclosing the thus-thermoformed polyurethane foam in a gas barrier material and evacuating the interior of the enclosure. The heat insulator of the invention is highly heat-insulating and can be snugly applied to irregular surfaces.

Abstract: A method and apparatus for forming a honeycomb structure in which a plurality of thermoplastic layers are fused together at selected locations. The thermoplastic layers at each of the selected locations are melted together to form a welded portion which includes first and second exterior surfaces. The welding of the thermoplastic layers is controlled so that no more than one of the exterior surfaces is melted. This partial melting of one layer prevents undesirable welding to adjacent layers. An apparatus for carrying out the method for welding thermoplastic honeycomb structures is also disclosed.

Abstract: A method of making an interior panel of an automotive vehicle door having an exterior surface which is to face toward the interior of the automotive vehicle when installed therein which comprises the steps of forming a bolster laminate including a textile outer layer, a flexible imperforate layer and an inner surface layer of a material which becomes tacky when heated, mounting the bolster laminate in a vacuum mold part, heating a sheet of predetermined material content presenting a vinyl surface, vacuum forming the heated sheet in the vacuum mold part so that the vinyl surface bondingly interengages the tacky material of the film inner layer of the bolster laminate, molding material between the vacuum mold part with the bolster laminate and the sheet therein and a cooperating opposed mold part to form an integrally molded panel having a content between an exterior bolster and vinyl surface and an opposed surface which includes a relatively hard substrate defining the opposed surface, a layer of sheet vinyl p

Abstract: A sleeve forming method and apparatus where sleeves are formed by use of overlapping webs. The webs are twisted in one direction to form a seal at one side of a sleeve and later twisted in the opposite direction to form the seal at the opposite side of a sleeve, such that all of the sleeves are oriented in the same direction, such as with the large openings of the sleeves facing upwardly and the smaller openings of the sleeves facing downwardly.

Abstract: A method for fabricating plastic interior trim components having an insert with openings therein joined to a composite member including a shell and a foam layer, the method including die punching a hole through the shell and foam layer and die punching an edge extension on the shell to a predetermined parametric form; providing a press that is operable to compress a part therebetween and including a first platen and a second platen moveable between opened and closed positions with respect to one another; providing an insert having an opening; supporting the insert on one of said first and second platens and applying adhesive on a surface of the insert; loading the composite member on the other of said first and second platens so that the foam layer thereof is facing the adhesive sprayed insert inboard of the die cut edge extension; closing the press to compress the adhesive sprayed surface against the foam layer of the composite member for adhering the insert only to the foam layer without leakage of foam thr

Abstract: Preimpregnated thermoplastic yarn is interwoven around spaced hex mandrels as weft members in a preformed ribbon, which may be folded into layers or cut into sheets for stacking in a honeycomb pattern in preparation for bonding. In block bonding, pressure and heat are applied to an entire fully stacked block to bond the interface facets together and form hex ducts around the mandrels, which must then be extracted, typically individually in a special pneumatic press process. In a preferred layer bonding process certain problems and limitations of block bonding are overcome by bonding each sheet as it is added to a stack buildup. An alternate layer bonding process is disclosed, which is facilitated by magnetic pressing, using electromagnets acting on ferrous mandrels to apply pressure evenly distributed along interfacial facets during thermal fusion bonding. The magnetically pressed layer bonding process is readily automated by disclosed apparatus. Heating and cooling are provided to the mandrels.