Abstract: A device for feeding thin plastic film to and around a mandrel for forming a tubular package in which articles are deposited. The sheet material is advanced downwardly over the mandrel by means of a reciprocating collar which includes a unidirectional driving member. The tubular formed sheet material is cut and sealed by conventional sealing devices.

Abstract: Process and apparatus are provided for forming corrugated filter sheet by folding a long strip of sheet material into corrugations extending longitudinally of the strip, press-bending the sheet along the longitudinal fold lines of the intended corrugations; and gradually drawing in the sheet from the sides towards the center, while pushing the sheet out from each side along the fold lines, so as to form the intended corrugations, reducing the width of the sheet according to the height and width of the corrugations.

Abstract: A can forming method and apparatus wherein cut-burrs of a can blank are removed from the ends thereof an adhesive film is stuck onto the preheated ends of the blank and, then, said ends are subjected to high-frequency induction heating for melting said films to join said ends together in such a manner as to prevent edge effect and associated deformations from occurring, thereby to form a lapped seam having a remarkably high adhesive strength substantially without pin-hole formation.

Abstract: A laminate of non-ferrous metal foil and heat softenable material is folded to tubular form to juxtapose the margins and the margins are heat sealed by passing the tube through an inductance coil; the inductance field may be intensified by a ferrite bar located in a mandrel over which the tube is fed.

Abstract: In order to produce an optical cable core composed of a plurality of optical cable elements stranded together, each element is produced by longitudinally slitting a stable tube, inserting at least one optical fiber into the tube through the slit, and causing the slit to close behind the fiber so that the fiber lies loosely in the tube, and the resulting elements are then stranded together to form the core.

Abstract: A method of glueing articles of the tobacco industry such as cigarettes, cigarellos, cigars, filter tips, coupling sleeves, etc., characterized by the use of a glue which at ambient temperature is in gel form composed mainly of water and gelatine, the gelatine concentration being in the 25-180% range in relation to the water weight, and a minor quantity of plasticizer for the gelatine in aqueous solution, belonging to the food polymers group comprising natural and modified vegetable gums and cellulose ethers, the plasticizer's concentration being within the 0.25-8% range in relation to the weight of the gelatine alone, and being adjusted so that the temperature at which the liquefied gel viscosity remains superior to 50 centipoises and becomes lower than 1000 centipoises is within the 40-70.degree. C. range.

Abstract: A hose conduit comprises an inner tubular fluid conducting space which is surrounded by a ringshaped space. Openings are provided in the wall of the inner hose leading into the ringshaped space. In the ringshaped space is provided a longway passage extending through repeated bows and bends and repeatedly changing its direction. From the said longway passage openings in the outer wall of the said ringshaped space lead into the open. The assembly of the hose conduit is built up of at least two layers of thin foil which are connected together. The longway passage is obtained by profiling one of the foils, i.e. by applying a raised, embossed pattern to one of the foils.

Abstract: This invention involves the method and apparatus for simultaneously placing a coating of a selected material on the outer surface of an extended cylindrical object such as a pipe or conduit, and holding the coating in position by wrapping the coating with a strip of thin film formed to a cylindrical contour and sealed with a longitudinal seam. This is accomplished in one mode by inserting the pipe through a tubular concentric mandrel, wrapping and sealing the plastic film against the mandrel and injecting the coating material through the annular space between the pipe and the mandrel and thus into the space between the pipe and the sealed plastic film. Using heat shrinkable plastic the film forms a tightly fitting cover for the pipe coating material.

Abstract: Apparatus for forming containers having a deformable tube and a closing cap attached to one end of the tube. A strip of deformable material is fed through a shaping tube and a mandrel axially positioned within the forming tube by means of an endless belt positioned within the mandrel and another endless belt positioned exterior of the mandrel. Welding means are provided to join the overlapped edges of the deformable material that has been shaped into a cylinder. Cutting means downstream of the welding means segment the welded cylinder into cylindrical tubes of desired length. A tube head is molded onto one end of each cylindrical tube.

Abstract: Preprinted rectangular blanks of longitudinally stretch-oriented foam sheet material are formed into cylinders by a continuous folder and seamer and transferred onto mandrels on which they are shrunken by heat to assume the shape of the mandrel. In forming containers, means are provided to place bottom blanks on the mandrels prior to the loading of the cylinders thereon so as to shrink the cylinders to sidewall shapes overlying the bottom blanks. The top curl on containers such as drinking cups and food tubs is formed after shrink forming and the bottom seam of the container is also reinforced by ironing after shrink forming. A method of continuously forcing and filling containers on a continuous in-line basis is also provided.

Abstract: A target made of interchangeable sections each comprising a multiplicity of membranes or plies of penetrable, elastomeric or resilient, tear resistant sheet resin material, the membranes being separated by intervening layers of porous or low density, resilient material such as foam resin material. Method and apparatus for making components for such targets are also disclosed.

Abstract: A can forming method and apparatus wherein cut-burrs of a can blank are removed from the ends thereof and an adhesive film is stuck onto the preheated ends of the blank and, then, said ends are subjected to high-frequency induction heating for melting said films to join said ends together in such a manner as to prevent edge effect and associated deformations from occurring, thereby to form a lapped seam having a remarkably high adhesive strength substantially without pin-hole formation.

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

Abstract: An inhalant disperser comprising an ampoule contained within an enclosure formed of an outer layer of liquid absorbent paper and an inner layer of material having an impermeable portion confining the fragments of a broken ampoule within the enclosure and a perforated portion permitting the passage of the ampoule contents therethrough for permeating the outer layer.

Abstract: The present invention refers to hoses for irrigation by dripping and the like and to the manufacturing processes for the same. Thin plastic film produces a hose which in a single unit lies flat while empty, and oval or round when water under pressure enters along the same. The characteristics of primary conduction derivation or draining, pressure reduction and exit by dripping and the like result from the simple act of sealing a plastic film while imprinting enclosure circuits of various shape on overlapped edge sections of the hose.

Abstract: The method of manufacturing shells of plastic material, such as methyl methacrylate, for percussion musical instruments. The shells are formed from flat pieces of plastic material which may be clear plastic, transparent colored or opaque plastic material of one or more colors. The invention contemplates providing an infinitesimal number of color design combinations. After the pieces of plastic material are cut, prepared and fastened together by novel methods, the material is formed into a cylindrical product which is joined at one location to provide an integral shell. By cutting the flat pieces of plastic material in various ways and joining them together, an extremely wide range of different visual designs are produced.

Abstract: In the manufacture of a communications cable, a moisture barrier comprising a corrugated metallic tape having inwardly and outwardly facing major surfaces is wrapped longitudinally about an advancing cable core to form an overlapping seam, with at least a portion of each of the major surfaces which form the seam being precoated with an adhesive copolymer material. Heat is applied to at least the portions of the moisture barrier which form the seam while the portions are spaced apart a distance sufficient to permit a stripe of adhesive copolymer material in molten form to be introduced into engagement with a longitudinal edge portion of the precoated outwardly facing surface which is destined to form the seam and which is disposed generally horizontally.

Abstract: A method and apparatus for continuous welding together of sheets of the type in which adhesion is derived from the melting and re-hardening of the sheet material itself rather than from an externally applied adhesive. A sheet, formed into a tube with the opposite sides overlapping, is tensioned longitudinally so as to form longitudinally extending stress lines which appear as ripples, at least at the overlapping edges such that the sheets weld at the bottom of the valleys formed by the ripples. As the tensioned sheet moves continuously between a heating element and a backing plate, both of which are stationary relative to the tube forming means, the sheets weld as the material from the sides of the valley of at least one sheet runs to the bottom of the valley, at which point the weld bead is formed, whereby the thickness of the weld bead may be more than twice the thickness of the original unheated sheet material.

Abstract: A method is described for joining the opposite edge portions of a sheet of flexible material to form a durably-joined elongated tubular member. The material is shaped or folded to provide opposite edge flaps, spaced and extending outwardly from the tubular member formed. A strip of connector tape, folded lengthwise to form a pair of leg flaps, is interposed between the edge flaps with its legs confronting and extending oppositely thereto. Each leg flap is bonded to its corresponding adjacent edge flaps, whereby the tape serves to connect the edge flaps and form a longitudinal joint within the elongated tubular member. The tubular member so produced may include an insulating layer and a flexible skeletal structure therewithin.

Abstract: The application discloses a means and method for manufacture and assembly of a known pivotally mounted sleeve-type photographic print display device. The display device comprises a relatively rigid planar cardboard base to which there are pivotally attached to at least one surface thereof in mutually staggered relation, a plurality of individual open-ended flattened sleeves, each having a paper insert of congruent dimensions. Attachment to the base is by an adhesive strip which forms a hinge.

Abstract: The disclosure relates to a decorative label on a closured bottle, including a pilfer-proof feature. The neck label comprises a sleeve of a shrinkable plastic material shrunken over the neck and closure skirt on a bottle. The label stock may be preprinted in a roll and is (1) scored a partial depth lengthwise along a line corresponding to a cap skirt edge position in the label, and (2) embossed by pleats angularly disposed to the direction of orientation. The pleats provide an embossed decoration which appear in each label blank cut from the roll. Label blanks are wound to a sleeve shape and the overlapped ends united at an axial seam. The sleeves with embossed decoration and pilfer-proof score therein are placed over the neck and closure skirt of a bottle such that the score line is in position adjacent the lower edge of the closure skirt. Heat is applied to shrink the label into snug surface engagement with the underlying surfaces.

Abstract: A strainer drum has a series of axially juxtapositioned, apertured carrier discs which define axially spaced, alternating, circumferentially extending crests and roots. The carrier discs support a prefolded one-piece filter fabric of the weft-and-warp type which is wrapped substantially 360.degree. around the discs and which conforms to the crests and roots defined by the carrier discs. The wefts and warps of the filter fabric are oriented obliquely with respect to the drum axis.

Abstract: A one-use bottle-shaped container has a cylindrical shell portion, a base portion which has an inturned flange continuous with the shell portion, a central disc sealed to the flange and a bottleneck-shaped upper portion terminating in an opening considerably smaller than the cross-sectional area of the cylindrical portion.

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: An apparatus in which a sheet is folded as a wrapper and filled with heat expandable plastic material and heated to expand said material by passing heated fluid through perforations in the sheet.

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: A cup or other container is fabricated from two continuous web stocks. The sidewall, which is formed from a rectangular sheet-like blank of thermoplastic material cut from one web, is produced by winding the blank in a cylindrical winding mechanism to present the edges in overlapping relationship, heating the edges as the cylindrical blank is transferred axially in the winding mechanism, and compressing the edges between seaming rollers to join the edges into a liquid-tight seam. The cylindrical sleeve is placed on an upward-facing forming mandrel carried on a conveyor. A bottom disc closure is partially cut from a second web, transferred by the web into overlying relationship with the path of the forming mandrels, punched from the web, and deposited on the top of the forming mandrel preparatory to reception of the cylindrical sleeve. The cylindrical sleeves are shrunken about the forming mandrels to cause them to assume the shape thereof.

Abstract: A method for producing receptacles of a thermoplastic resin foam sheet, which comprises forming a cylinder of a rectangular-shaped uni-directionally shrinkable thermoplastic resin foam sheet which, when heated, shrinks in a first direction to a greater extent than other directions perpendicular to said first direction, so that when heated, the thermoplastic resin foam sheet will shrink toward the central axis of the cylinder; bonding the side edges of the sheet forming the cylinder; heating the foam sheet on a molding form to a temperature above the softening point of the resin, whereby the cylindrical foam sheet shrinks toward the central axis of the cylinder formed by the sheet and intimately contacts the circumferential side wall of the molding form to form a bottomless or gathered cylindrical article; and compression-molding the article under heat to form a thermostatic resin foam receptacle.

Abstract: The invention provides a continuous process for producing tubes from sheeting coated on at least one face with a heat sealable composition that melts at a lower temperature than the sheeting itself.

Abstract: A machine is provided for making flexible tubular insulated duct having multiple wraps formed about a compressible inside core. A sheet forming collar shapes the wraps about the core upstream of a joint sealer which cooperates with an underlying conveyor to draw the core and wrap materials along a linear path of movement through the joint sealer to form a longitudinally extending joint on the outermost wrap of the duct. A second conveyor overlies the first conveyor downstream of the joint sealer, and the second conveyor and the joint sealer are selectively adjustable in height to form duct of selected diameter size and to apply a desired tractive force to the sealed duct. A cutting unit is selectively operable downstream of the second conveyor for cutting the duct into predetermined lengths.

Abstract: A conventional fin-type seam formed on tubed bag forming sheet material provided on one face with heat sealable material, has heat sealed overlapping edge portions forming the seam. The fin slides over a back-up plate extending between it and the body of the tube to prevent scuffing of the heat sealable material with consequent seal failure. A tracking wheel engaging the fin presses it against the back-up plate, and maintains alignment.