Abstract: A method for forming lengths of adhesive tape into tubes including providing a mandrel having an axis and a multiplicity of radially outwardly projecting resilient bristles having tips defining at least the major portion of a periphery around the axis in the shape of a tube to be formed. The tape is wrapped around the periphery of the mandrel and the ends of the tape overlapped to form a tube having an axially extending seam. A ring is then pressed against one end of the formed tube to slide it axially off of the bristles and mandrel.

Abstract: There is disclosed a method and apparatus for making tubular fiber reinforced thermosetting resin elements having a thermoplastic lining. The technique involves application of a thermoplastic lining layer to an axially moving mandrel surface, application of at least one layer of fiber reinforced thermosetting resin material superimposed upon the lining layer, providing for bonding of thermosetting and thermoplastic layers to each other, and heating the thermosetting resin to effect solidification during axial advancement of the superimposed layers with the moving mandrel surface. Provision is also made for applying a thermoplastic jacket layer superimposed upon the thermosetting layer.

Abstract: A process is provided for the manufacturing of a hollow rotating body which process comprises mounting at least two wheels in a parallel fashion upon a shaft, placing a plurality of strips of glass fiber fabric along the outer circumference of the wheels, whereby an enveloping cylinder is formed, impregnating the strips with plastics or synthetic resins capable of subsequent setting, setting, applying helically layers of impregnated fiber strips tangentially to the cylinder mantle whereby the size of the walls increase, applying a reinforcing belt of wire or tape, applying a finishing coat of plastic or synthetic resin, whereby surface irregularities are smoothed, setting, and mechanically treating the surface to remove irregularities. An apparatus for accomplishing this process is disclosed.

Abstract: A hollow resin bonded glass fiber column of unique cross section suitable for use as a utility pole, light standard or the like is disclosed including unique means for forming the pole. A rotatable finned mandrel is wrapped with a waxed surfaced paper and then sprayed with a mixture of chopped glass, resin and catalyst which is initially pressed thereon by a roller and then wrapped with continuous bands of fiberglass roving, re-rolled, covered with a fiberglass veil, rolled again and allowed to cure. The finned mandrel which makes relatively thin line contact with the inside of the pole and the wax surfaced paper allows the curved pole to be easily slipped endwise from the mandrel. In one embodiment a metal mandrel having eight radially extending fins has been successfully used to form fiberglass poles of octagonal cross section.

Abstract: A consolidated man-made board, such as hardboard, is wetted on one surface and thereafter embossed with a contoured embossing plate at a pressure of at least about 1000 p.s.i., at a temperature in the range of about 400.degree.-550.degree. F. and for a period of time sufficient to permanently re-shape the surface of the consolidated board.

Abstract: Certain electrical characteristics of a semiconductor device which includes a body of semiconductor material are improved by exposing the semiconductor device to a substantially water vapor free atmosphere of chlorine and heating the device in this atmosphere.

Abstract: A method for automatically producing bib aprons from a continuous web of nonwoven fibrous material. The web is unwound from a supply roll, and beads of adhesive are applied adjacent its longitudinal edges as it is advanced along a feed path. The edges are then folded over the adhesive to provide longitudinal reinforcements, and the web is cut in a direction transverse to its direction of movement to form rectangular blanks. As the blanks continue along the feed path, additional beads of adhesive are applied to each blank in spaced areas adjacent a pair of opposed corners. To produce the neck loop and tie elements for the apron, a single narrow strip of nonwoven fibrous material is positioned over the blank in a direction transverse to its direction of movement, and the center of this strip is pulled in the direction of movement such that the strip forms both the neck loop and the tie elements. The opposed corners of the blank are folded over the adhesive areas to hold the strip in place.

Abstract: A helically fluted deep hole cathode which is fabricated by helically winding at least one thread member around a dielectrically coated cathode tube and then applying a layer of electrical insulation over the tube and thread member so wound and wherein, preferably, the helical flutes commence about the distance of the diameter of the electrode tip from the tip and are selectively formed or machined after forming to have a flute diameter approximately .001 inch to .002 inch smaller than the diameter of the hole to be cut so that the flutes support the electrodes in the deep hole during the cutting operation and provide an egress route for the electrolyte and removed workpiece material to depart the hole area during the hole drilling process.

Abstract: Successive pouches are formed from a web of plastic film by advancing the web through a folding station and folding the web along a longitudinal fold line to form a two-ply portion and a single ply portion adjacent thereto. At a sealing station, confronting surfaces of the two-ply folded portion of the web are sealed together along longitudinally spaced apart seal areas extending transversely across the two-ply portion to define a series of successive pouches interconnected by the seal areas. At a flap forming station predetermined waste areas are severed and removed from the single ply portion of the web to form the same into a series of successive flaps extending alongside each of the pouches and adapted for being folded over the pouches to close the same.

Abstract: A method of assembling and embossing a multiple layer workpiece has, in a most complete conception, a first die having die surfaces for defining periphery of an area portion to be embossed on the workpiece which engages a blank to mark the blank with the die surfaces. Means are then located on the blank relative to the mark for operating on the blank to make a model of the desired workpiece from the blank. A second die is made conformably with the model. Workpiece layers are then assembled in overlapping relation and welded together by the first die along the periphery of the area porton defined by the die surfaces. Portions of one layer outside the welded periphery are then removed to leave the area portion covered by the one layer and secured to the other about the periphery of the area portion.

Abstract: Apparatus for continuously laminating a continuous strip of chipboard on one or both sides with decorative film comprising means for feeding a continuous strip of chipboard between one or more pairs of rolls together with decorative film and a bonding agent. Means are provided for applying heat and pressure to laminate the decorative film and the continuous strip of chipboard together and embossing the decorative film laminated to the chipboard. In one form of the invention, the chipboard, decorative film and bonding agent may be preheated before being fed to the pairs of rolls, the rolls are preferably heated revolving drums and means can be provided for further heating the laminate before feeding the same through additional heated drums prior to embossing it.

Abstract: Automatic label applying apparatus comprises a conveyor for moving packages to a weigh scale and from thence to a label application station where a reciprocably movable vacuum type heated label applicator receives an appropriately printed label from a label issuing means and applies it to the appropriate package. A vacuum system connected to the label applicator holds the label thereon and also operates a pneumatic cylinder for a lock-out arm to prevent the heated label applicator from making contact with and burning a package when the vacuum system senses that no label is present. An electronic control system, including a photocell for sensing if a package is at the station and also including a limit switch actuated by the lock-out arm (and therefore indicative of the presence or absence of a label), operates to stop the conveyor after a predetermined interval of time in the event that a package is present at the station but no label is available to the label applicator.

Abstract: This taping attachment or device applies a ribbon or adhesive-coated tape to an article moving relatively thereto, such as around a coil of strip material being wound upon a rotating mandrel, in order to prevent subsequent unwinding of the coil. This taping attachment or device consists of a tape roll holder mounted above the carrier for the article to be taped, such as a mandrel, adjacent a reciprocatory fluid pressure motor. The latter includes a piston rod having mounted on its lower end a pivoted tape applicator with a tape cutter thereon urged or positively driven in a downward tape-severing direction.

Abstract: A laminated settable tubular package is disclosed having integral end and body portions of the same material. The tubular package is formed with a process and apparatus which permits head and shoulder portions to be formed as a continuation of the tubular body through folding and shaping operations. The package is substantially impermeable and has particular use for containing toothpaste, essential perfumes, oils, solvents, flavorings, and other substances in which permeation of the atmosphere and/or volatization losses are problems.

Abstract: A taping machine for applying a protective wrapping to small parts, particularly electronic parts such as capacitors, having a longitudinal axis. Permanently adhesive tape is fed from a supply roll onto a forwardly inclined table at the front of the machine. Below the front lip of the table are a pair of horizontally extending rollers vertically aligned with one another. Interposed between the lip of the table and the rollers is a reciprocated cutter blade. A third roller mounted upon a swingable arm is bodily movable in triangular relation with respect to the pair of rollers. The end of the tape extends to the lip of the table, sticky side up, so that a part may be manually pressed adheringly to the tape in a transversely extending direction. Interposed between the roll of tape and the table is a swingably mounted knurled roller engaging the sticky side of the tape and about which the tape is looped.

Abstract: An apparatus for forming countertops and the like from a laminated blank bends a side section of the blank to form a substantially vertical back splash and inserts a cove stick into a cove at the bend junction of the blank. The apparatus includes a work-supporting bed for supporting the laminated blank, a bend bar movably mounted with respect to the bed and fluid-actuated pressure means for forcing the bend bar against a side section of the laminated blank for bending the side section into a vertical back splash. A cove stick inserting assembly is connected to the bend bar and includes support means for supporting a cove stick adjacent a cove formed at the bend junction of the laminated blank after the bending operation, and fluid-actuated pressure means for inserting the cove stick into the cove to thereby complete the formation of the countertop.

Abstract: A migration imaging electrical latent image erasing process comprising providing an imaging member comprising fracturable migration material in a softenable layer; said member having a first electrical latent image of a first polarity, erasing said first electrical latent image by electrically charging said member with charge of a polarity opposite said first polarity to bring said member in imaging area portions to at least about zero potential, then forming a later electrical latent image, typically differing in composition from said first electrical latent image, which may be of either polarity, on said member. If said member is migration developed, migration material migrates at least in depth in said softenable layer in an image configuration corresponding to said later electrical latent image and not said first electrical latent image.

Abstract: This invention relates to an assembly for applying labels to the longitudinal surface of cylindrical articles. The assembly includes a label dispenser which carries the labels to a label station and dispenses them, one at a time, at the labelling station. The labels are carried on a backing tape and are slid off the tape at the labelling station. The assembly also includes means for advancing the articles to the labelling station, for example, a walking beam, and means for supporting the article at the labelling station so that it is free to rotate about its longitudinal axis. A cylindrical roller is disposed in a two position parallel arrangement with an article at the labelling station such that, in one position, the roller is spaced from the article and, in a second position, the roller is in physical contact with the article along a longitudinal contact line. Means are provided for moving the roller to its two positions, and further means are provided for rotating the roller about its longitudinal axis.

Abstract: An apparatus for continuously manufacturing a reinforced plastic pipe in which a reinforced plastic strip having a substantially I-shaped reinforcing spiral core embedded therein and partly exposed out of the strip is wound on at least three segmental sleeves slidably mounted on rotary shafts whose centers are arranged at vertexes of a regular polygon, respectively. During rotation of the rotary shafts, those segmental sleeves which are in contact with an envelope that is tangent to the segmental sleeves are moved forward while those segmental sleeves which are not in contact with the envelope are moved backward in a smooth manner by a guide means. The alternate forward and backward movements of the segmental sleeves are capable of continuously manufacturing the reinforced plastic pipe without producing strain at the joints between the lateral edges of the successive turns of the plastic pipe.

Abstract: A steel pipe with longitudinal welding seam is wrapped helically by means of a polyethylene ribbon which is normally stretched, but temporary stretch relief provides for a thicker envelope above and adjacent to the seam. A ribbon deflector roll and a pressure roll provide the stretching through a speed differential which is changed as stretch relief.