Abstract: A pneumatic tire having a cap/base structured tread and having an improved resistance against heat build-up and an improved wear resistance at the end of the use can be obtained by forming a tread base rubber of the tire with a vulcanizate of a rubber composition comprising specifically limited amounts of short fibers of syndiotactic-1,2-polybutadiene having a maximum diameter of not more than 10.mu. and an average diameter of less than 1.mu., carbon black, sulfur and natural or synthetic rubber.

Abstract: A changeover system for a corrugator designed to halt the corrugator during the changeover to diminish paper loss. When the corrugator is halted, a traveling knife severs the combined webs adjacent the beginning of the steam table run. The slitter scorer and the cutoff are changed and the corrugator is restarted. The traveling knife which severs the combined webs may operate above the steam table or below the steam table; alternate forms may be used.

Abstract: A pneumatic insert for a pneumatic tire comprises a generally toroidal-shaped hollow tubular member with beads, that includes an insert inflation chamber pneumatically noncommunicable with the tire inflation chamber. A crown portion of the insert has a radially inner and a radially outer layer that define a closed lubricant chamber, also noncommunicable with the tire inflation chamber under normal running conditions. Lubricant release means such as valve or diaphragm provided in the outer crown layer permit release of the lubricant when the tread collapses against the insert crown during run-flat conditions.

Abstract: A puncture-sealing tubeless pneumatic tire having an inner layer of soft, tacky, extensible sealant consisting of (1) at least one vinylidene-terminated liquid polymer and (2) at least one amine.

Abstract: A pneumatic radial tire including a tread, a pair of sidewalls, bead portions having bead wires therein and fiber cord radial carcass extending between the bead portions through the sidewalls and the tread, and a belt layer of plural metal cord layers above the carcass in the tread, the metal cords lying in radial planes of the tire. At least one rubber coated damper layer is positioned between belt plies in ends of the belt layer with cords arranged in directions substantially 90.degree. to the radial planes or 0.degree. to circumferential planes. The tire according to the invention further comprises high elastomeric rubber fillers having a 20% extension modulus of at least 30 kg/cm.sup.2 extending from the bead wires to the center zones of the sidewalls. The tire according to the invention is capable of preventing "standing waves" to thereby improve the durability of the tire for high speed travelling.

Abstract: A pneumatic tire having an improved chipping resistant property is disclosed. In the tire, the tread portion is formed with a vulcanizate of a rubber composition comprising 3-40 parts by weight of short fibers of syndiotactic-1,2-polybutadiene, 30-100 parts by weight of carbon black and 0.2-5 parts by weight of a p-phenylenediamine type antioxidant, on a basis of 100 parts by weight of a rubber selected from natural rubber, synthetic rubber and a blend thereof in an optional blending ratio.

Abstract: A method of causing a vinyl resin blanket to adhere to a silicone belt during removal of a printing transfer sheet by applying a corona discharge to the belt.

Abstract: There is disclosed herein an improved needle assembly or fistula set which includes a hollow metal needle, a larger plastic fluid-carrying conduit, and plastic spacers between the needle and the conduit. The conduit and spacers are heat sealed to each other so as to provide a fluid-tight junction with the needle.A method for heat sealing the fistula set is also disclosed. In that method, the needle is used as one electrode and the other electrode includes jaw-like members which engage and surround the conduit at the junction where the heat seal is to be formed. During the heat sealing operation, the conduit and needle are maintained in substantial coaxial alignment so as to assure coaxial alignment thereafter.A fixture or tooling apparatus is also disclosed for effecting heat sealing and assuring substantial coaxial alignment.

Abstract: A thermoplastic member such as a length of tubing for forming a catheter balloon is positioned on the thermoplastic shaft of a medical device. A length of shrink tubing is placed over each end of the balloon tubing and adjoins a portion of the shaft. Each length of shrink tubing may then be preshrunk to maintain its position. The shaft, balloon tubing, and shrink tubing are then inserted in an apparatus capable of supplying radiant heat in a narrow annular band. The apparatus automatically positions each portion of the shaft and balloon tubing covered by shrink tubing at a location at which it will intercept the narrow annular band of radiant heat. Radiant heat is supplied by the apparatus to cause further shrinkage of the shrink tubing and to seal the balloon tubing onto the shaft. The shrink tubing may be removed to complete the assembly of a balloon catheter. It is preferred that the shrink tubing be tinted so as to enhance the seal formed between the balloon tubing and the shaft.

Abstract: A mattress includes a flexible tube having a pair of major surfaces alternating with a pair of side surfaces with marginal portions of the major surfaces extending beyond the side surfaces at each end of the tube. The marginal portions are bent toward each other and lap sealed along seams extending substantially between the side surfaces to form the end surfaces of the mattress. At each corner an insert is disposed along a line where the end surface approaches the side surface and is attached thereto by a continuous lap seam having substantially parallel sides extending substantially between the major surfaces. An associated method includes the provision of a special mandril for heat sealing the insert.

Abstract: A bias-ply pneumatic tire comprises a tire cover having a thread portion, a pair of opposed side walls integral with the tread portion and a pair of opposed bead portions integral with the respective side walls and adapted to firmly engage with associated rim flanges of a wheel rim. Each of the bead portions includes at least one bead core embedded therein. The tire cover includes a bias-ply carcass structure composed of a plurality of carcass plies laid on a bias at a predetermined angle with respect to the midcircumferential plane of the tire.

Abstract: Device for infeeding a strip of flexible material for use in a machine for binding articles in particular for edging parts for boots and shoes. The infeed device has a quadrant mounted in advance of a cutting mechanism on the machine.

Abstract: A radial spare tire which, upon inflation, stretches from a shape having a reduced diameter adjacent the wheel rim on which the tire is mounted, to a regularly sized radial tire which the spare tire is designed to replace. The tire is molded and vulcanized in an unstretched configuration of reduced size. The stretching of the tire is made possible by the utilization in the carcass and belt plies of reinforcement cords which, during the processing of the cord and building of the tire, have a relatively high modulus of elasticity. When the cords are subjected to vulcanization temperatures, they lose their strength and have a low modulus of elasticity to permit the stretching of the tire to a regular size. The cords then develop a high modulus of elasticity in the stretched condition to provide the required reinforcement of the tire in the inflated regular size condition.

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

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: The pneumatic tire incorporates a reinforcement belt comprising two superposed median plies of metallic material and two laterally disposed marginal plies of nonmetallic material. The marginal plies are folded to form superposed flaps, with the corresponding flaps of each marginal ply being substantially aligned.In all embodiments of the invention at least one pair of corresponding opposite, laterally disposed flaps align with one of the median plies. In at least one embodiment of the invention the second pair of opposite, laterally disposed flaps align with the second median ply. In other embodiments of the invention the second pair of opposite, laterally disposed flaps overlap the terminal ends of the second median ply. And in still further embodiments of the invention the second pair of opposite, laterally disposed flaps are positioned radially outward or radially inward of the second median ply.