Abstract: A method of manufacturing a ball for use in volleyball or soccer includes the steps of manufacturing a spherical hollow body of a brittle material, sticking cloth strips in an overlapping manner on the spherical hollow body to provide a bag body, cutting a predetermined portion of the bag body to make an opening thereon, collapsing the spherical hollow body in the bag body into pieces, taking the collapsed pieces out of the bag body through the opening, putting a tube having a valve through the opening into the bag body, sticking rubber ribbons on places corresponding to the overlapping portions of the cloth strips, and sticking leather sheets on the rubber ribboned bag body to provide an outer layer for the ball.

Abstract: Disclosed is a process for making wood laminates from a plurality of wood plies having relatively high moisture contents. By employing a center ply having a moisture content of at least 3%, relatively high moisture content plies can be employed in the preparation of wood laminates without experiencing defective panels due to the blow out of steam built up during pressing. The outer plies can have moisture contents of as high as 25%. Additionally, interior plies other than the center ply can also have moisture contents similar to that of the center ply or can have moisture contents below that of the outer plies.

Abstract: A burner has a flame chamber formed by flat upper and lower walls connected by side walls and a front end wall, with a fuel inlet for connection to a fuel source and with an open rear end. A handle is connected with one side of the burner for inserting it between the overlapping layers of a lap joint of fusible roofing sheets for sliding it forward along the joint while flame issues from the rear end of the burner to fuse the overlapping layers together. A hold-down member normally is spaced above the burner, but a device is provided for lowering that member into close proximity to the burner for engaging the upper surface of the upper layer of the lap joint and holding that layer down on the burner as the burner is moved forward. The apparatus may also include a second shorter flame chamber disposed above the front portion of the other chmaber, with openings between them for flow of gas and flames from the lower chamber to the upper one.

Abstract: Disclosed is an apparatus for applying polyester resin impregnated fabric onto a smooth surface. Fabric is impregnated with polyester resin and pressed onto a flat or curved surface by means of vibrating rolls which may be remotely controlled to conform with the contours of the surface. Vibration of the rolls removes entrained air bubbles and permits complete application of the impregnated fabric in a single pass of the apparatus. The fabric is dispensed, impregnated and applied from a frame which is suspended from an overhead gantry and which may be moved in three dimensions. On the frame are mounted a roll of fabric, an impregnator for impregnating the fabric with resin, and a series of pneumatically vibrated rollers for applying the impregnated fabric. Operation is controlled from a console attached to the frame.

Abstract: A tire whose inner wall is provided, below the crown of the tire and at least from one shoulder to the other of the tread, with a lining containing at least one means for sealing puncture holes is improved due to the fact that the lining comprises at least one layer of a vulcanizable sealing mixture separated by a vulcanized elastomeric partition from at least one layer of a vulcanizing mixture capable of vulcanizing the vulcanizable sealing mixture, each of the layers containing between 20% and 100% by weight of an elastomer of low molecular weight, preferably less than 30,000.

Abstract: An adhesive bonding method and apparatus includes a pair of opposed web members having confronting surfaces provided with cooperatively engaging hook and loop portions. The hook portion of one confronting surface is saturated with an epoxy resin or the like, and the loop portion of the other confronting surface is saturated with a catalyst for the resin. The web members are urged together to engage the hook and loop portions and to intermix the catalyst and the resin.

Abstract: A cover sheet is disposed over a recess in a work table. A folding apparatus, including an edge folder and edge erector is disposed over the recess and lowered until the edge erector is in the recess. The edge erector includes horizontally movable plates which are moved outwardly against the edges of the recess to erect the marginal edges of the sheet. The edge folder has downwardly depending, horizontally moving members. The edge folder is lowered until the members touch the work table after which the members are moved inwardly to fold the erected marginal edges of the sheet horizontally over the plates. The plates are then withdrawn while the edge folder members are maintained in contact with the folded marginal edges, and high frequency heat applied to weld the folded marginal edges to the sheet. After the welding is completed the edge erector and edge folder are raised to their initial position and the members are returned to their outward positions.

Abstract: A pneumatic tire whose inner wall is provided beneath the crown with a lining which extends at least from one shoulder to the other of the tread and comprises a layer of a sealing mixture capable of flowing into a puncture hole, the layer being covered radially inward by a vulcanized elastomeric partition, is improved due to the fact that the layer of sealing mixture has a base of at least one elastomer of low molecular weight, preferably less than 30,000, mixed with at least one thermosetting resin, and due to the fact that at least one cross-linking agent or hardener for the thermosetting resin is isolated from the layer of sealing mixture by means of a vulcanized elastomeric partition arraged radially inward of the layer of sealing mixture.

Abstract: A tire having a radial carcass reinforcement and a tread reinforcement formed of at least two nonfolded diagonal superposed plies of different widths and of at least one diagonal ply with two folded edges, each of said folded edges resting on at least a portion of a nonfolded ply, is improved against structural defects by an arrangement wherein the nonfolded plies have axial widths which increase with the radial distances of said plies from the axis of the tire and wherein the ply with folded edges is so arranged that its folded edges cover at least the edges of the widest nonfolded ply.

Abstract: A machine for making hanging file folders, each of which folders comprises a folded paperboard blank and a pair of support rods fastened to the upper edges of the folded blanks and includes a rod applicator mechanism comprising a conveyor for moving an unfolded flat blank having glue patterns thereon along a path; a mechanism for momentarily interrupting or stopping movement of the blank along the path; a pair of rod-dispensing magazines adjacent the path; and rod transfer mechanisms for transferring rods from the magazines and applying them to the glue patterns while the blank is stopped, whereafter blank movement resumes. The conveyor includes a pair of separable rollers between which the blank passes and by which it is advanced when the rollers are closed. The mechanism for momentarily interrupting movement of the blank effects momentary separation of the rollers and includes a stop member temporarily movable into the path of movement of the blank to arrest its progress after the rollers separate.

Abstract: A grouser retainer that is positioned between a belt and a tire carcass provides an anchor for attaching one outboard end of a grouser to a tracked tire assembly. A pair of grouser retainers, one at each edge of the track or belt, are used to anchor each grouser as each grouser retainer is less than the full width of the tire tread.

Abstract: A method of joining together a sheet or sheets of an organic polymer which is not normally melt-processable, e.g. polytetrafluoroethylene, the method comprising the steps of(a) contacting a strip of melt-processable organic polymer, e.g. fluorinated ethylene/propylene copolymer, with the faces of the sheet or sheets in the region of juxtaposed edges of the sheet or sheets,(b) stitching the strip to the sheet or sheets by means of a thread, and(c) heating the strip in order to fuse the strip and/or the thread to seal the holes created by the stitching step, and, where the strip has not previously been fused to the faces of the sheet or sheets, in order to fuse the strip to the faces of the sheet or sheets.Preferably, the thread is of a melt-processable fluorine-containing polymer and a gauze is placed in contact with and stitched to the faces of the sheets opposite from the faces contacted with the strip of melt-processable organic polymer.

Abstract: A method of treating asphaltic membrane covered roofs for inhibiting the formation of blisters therein and reducing blisters that have formed therein comprises applying to the blistered portions and surrounding areas of the membrane a quantity of selected liquid hydrocarbon. The selected hydrocarbon is miscible with the asphalt of the membrane to instill self-healing qualities therein.

Abstract: Leaks in a vessel or pipeline or the like adapted for containing a fluid, are sealed by means of a volatilized polymerizable aminosilane supplied to the interior of the vessel under sufficient pressure and for a sufficient period of time to permit contact thereof and react in the presence of moisture or sand at the situs of the leak to provide a solid polysiloxane seal.

Abstract: A rubber-free heat reactable phenol-formaldehyde resin adhesive is used to bond bright steel tire cords to the tire rubber.

Abstract: A compound machine for mechanically forming traffic dividing and regulating lines on a roadway pavement, comprising a motor driven vehicle adapted to travel along a desired direction on said pavement, the machine being implemented by a first apparatus supplied and adapted for forming spaced line segment by applying on said pavement spaced lengths of a multilayer road marking prefabricated tape material, and by a second apparatus supplied and adapted for forming painted marking line lengths aligned with and in the intervals between the spaced road marking tape segments, whereby a discontinuous marking line including alternatively arranged tape segments and painted segments is formed on the roadway pavement.

Abstract: A method of manufacturing a patterned cushioning product of flexible polyurethane foam, which is suitable for use as a flooring or carpetting material, wall lining material or any other surface finishing or lying material, which is manufactured by the application of high frequency vibrations necessary to cause thermally fusible bonding particles to permeate into an open-celled structure of a sheet of flexible polyurethane foam and then fushion-bonding surface covering sheets to the opposed surfaces of the polyurethane foam sheet.

Abstract: A vehicle tire has a radial carcass and a reinforced crown and the tire beads each comprise at least one beadwire surmounted by a filler strip whose cross-section is broadly tapered towards the side-wall and which is made of a rubbery mixture reinforced with short fibres. According to the invention, the fibres reinforcing the filler strip are, at least in part, orientated in the radial direction of the tire so that the mixture used for the strip has a ratio of anisotropy at least equal to 2:1. The filler strip may rise up the side wall to a height of between 0.2 and 0.5 times the cross-sectional height of the tire.

Abstract: A tire with a radial carcass reinforcement and a tread reinforcement formed of at least three plies of cables is improved due to the fact that the tread reinforcement is formed of two plies of cables having a very low elongation and forming angles of 50.degree.-70.degree. with the longitudinal direction of the tire and of two plies of elastic cables forming angles of 5.degree.-15.degree. with the longitudinal direction of the tire.

Abstract: Two coaxial metal pipes, whose confronting extremities are each provided with a plurality of peripheral ribs of staggered height separated by two or more peripheral grooves, are interconnected by a coupling sleeve of fiber-reinforced thermosetting resin subdivided into several coaxially interleaved and independently deformable cylindrical shells each terminating in a pair of internal beads engaged in a respective peripheral pipe groove. The shells, increasing in axial tensile strength from the innermost to the outermost one, are preferably separated from one another by interposed antibonding layers of thermoplastic resin. A resinous filler can be inserted between the pipe extremities for electrically insulating them from each other. The shells of the coupling sleeve can be formed by coiling resin-coated filaments around the pipe axis, advantageously with application of an antifriction layer on each inner shell before the thermosetting material thereof has been fully hardened.