Abstract: A reinforcement ply intended for use in a tire is characterized by the fact that the reinforcement ply is formed, at least in part, of a fabric having the following properties:(a) the fabric comprises a three-dimensional body and reinforcement threads arranged in the body and held by the body;(b) practically all the voids in the fabric are capable of being impregnated with at least one material which forms part of the structure of the tire.The invention also relates to these plies which are impregnated with at least one material which forms part of the structure of the tires. The invention further relates to tires having at least one reinforcement ply, as well as to the methods for obtaining such tires.

Abstract: A tire having a tread, wherein a polymer component in the rubber composition constituting the tread comprises at least 30% by weight of a specific styrene-butadiene rubber produced by solution polymerization (S-SBR), and wherein the pattern of the tread has a specific contact area ratio, lateral groove density and lateral siping density is suitable for an all-season tire having high-wet grip properties, low rolling resistance, excellent low-temperature characteristics, and excellent on-ice and on-snow performance at a highly balanced level and with no sacrifice whatsoever of abrasion resisting characteristics.

Abstract: A pneumatic tire, which has a plurality of comprssion springs radially disposed inside a conventional tire casing, located in such a manner, that if the tire is punctured and the air is lost, the radius of said tire will remain substantially constant, which will allow the vehicle or aircraft involved to retain its stability, and thus prevent damage to property and the loss of human life.

Abstract: An annular ring-shaped run flat device is used in tires to permit continued use of the tire even when the tire is operating at low pressure or is completely deflated. This device is comprised of a rigid section and a non-rigid section. The tire, when it collapses, due to a reduction in pressure, comes to rest on the surface of the non-rigid, resilient, impact resistant section. This device is easy to assemble, can be used with conventional multi-piece rims, is light weight, durable and capable of absorbing impact under both inflated and deflated conditions. The device can also be used as a positive and non-positive bead spacer to prevent dismounting of the tire beads when tire pressure drops.

Abstract: This pneumatic tire is of the type in which two belt-reinforcing layers crossing each other and at an angle of 15.degree. to 30.degree. with respect to the circumferential direction of the tire are laid over each other and over a carcass cord layer of a tread portion. The improvement lies in that the carcass cord layer consists of upper and lower layers; the lower carcass cord layer continues in its widthways direction so that each of its edges is turned up around one of a pair of right and left bead wires, respectively; the upper carcass cord layer has a split structure so that it is separated to the right and left at the tread portion; the edge portions of the upper carcass cord layer nearer the tread portion overlaps the belt-reinforcing layer to a width of at least 10 mm while the edge portions thereof nearer the bead portions are at a height of not more than 0.

Abstract: The tire for heavy load consists of a multi-layered flat ring held in the axial and radial direction by a two-part metal felloe and supported between the felloe by air.

Abstract: A pneumatic radial tire is disclosed, which comprises steel cords having a two or three layer construction represented by a designation of l+m or l+m+n as a tire reinforcement, wherein two layers at a center side of a transverse section in the steel cord have the same twisting direction but different twisting pitches. In this steel cord, m filaments constituting an outer layer are arranged so as to enter into an inside of a circumscribed circle enveloping l filaments of an inner layer at a non-contact region above a predetermined value and have a form ratio of 90-110%.

Abstract: A pneumatic radial tire comprising: (1) a cylindrical tread portion; (2) side portions located at both sides of the tread portion and extending inwardly in the radial direction; (3) bead portions located at the inner edge portions of the side portions; (4) a carcass comprising at least one ply which is reinforced with a belt arranged on the inside of the tread portion, wherein said belt and/or said carcass ply is reinforced by steel cords; and (5) a rubber composition surrounding the steel cords, wherein said rubber composition comprises: (a) 100 parts by weight of at least one rubber selected from the group consisting of natural rubber and dienic synthetic rubber; (b) 0.1-5.0 parts by weight of alkadiene sulfone; and (c) 0.05-1.0 parts by metal weight of at least one metal salt of an organic acid selected from the group consisting of cobalt salt of an organic acid and nickel salt of an organic acid.

Abstract: An apparatus and method for cold retreading or recapping of the running surface of a vehicle tire. A rubber, rope and cloth mold larger in diameter than the recap tires produced in it is produced utilizing a new tire male mold covered with perforated polypropylene film, uncured rubber with nylon rope at its edges and highly stretchable cloth enclosed in an envelope and cured by application of pressure and heat. A larger male mold is used to make the final female mold directly, or a like-size male mold is used to make an intermediate mold which is used to produce a tread ring that is stretched to form a larger diameter male mold from which a final mold is prepared. The somewhat flexible, compressible final female mold thus produced is then utilized in recapping tires by positioning it around a prepared tire carcass coated with cement, a layer of uncured rubber, and a sheet of perforated polypropylene film.

Abstract: A bicycle tire which has a raised, circumferential center rib and laterally opening grooves of scalene trapezoidal shape alternatively in the right and left sides of the center rib whereby the center rib defines a zigzag shape. Groups of polygonal, raised blocks are spaced from both sides of said center rib along the entire periphery of the tire. The bicycle tire provides an improved ride on level and uneven ground or roadways. The tire provides the advantages of both line and block pattern tread types in a single overall tread design.

Abstract: A pneumatic tire having an excellent cut resistance is disclosed, which comprises an annular crown portion constituting a tread, a pair of side portions supporting said crown portion, a pair of bead portions located at each foot of said side portions for fitting to a rim, a carcass layer composed of at least one rubberized cord ply toroidally extending between said bead portions and a liner layer disposed inside and adjacent to said carcass layer.In the tire according to the invention, a fault surface having an extremely low adhesion which intercepts the crack growth from the outside of the tire is further arranged in said liner layer at at least a part of a region extending between said bead portions.

Abstract: Composite of rubber and metal reinforcement where the rubber contains borate and a cross-linkable monomer. Cured composite is useful as component for rubber tires, industrial belts and hose.

Abstract: Disclosed herein is a pneumatic tire suitable for running on snow and ice roads, a tread portion of which consists of a rubber composition comprising 0-60 parts by weight of a petroleum softener and 5--35 parts by weight of a low-temperature ester type plasticizer based on 100 parts by weight of a rubber blend consisting of 30-95 parts by weight of at least one rubber selected from the group consisting of natural rubber, polyisoprene rubber and styrene-butadiene copolymer rubber, 0-50 parts by weight of polybutadiene rubber, and 5-30 parts by weight of butyl rubber or halogenated butyl rubber.

Abstract: A pneumatic vehicle tire which has fine slits in the tread. These slits are inclined relative to the circumferential direction of the tire. In order to increase the frictional connection to the roadway, to make the wear of the tread more uniform, and in addition to be able to use mechanically stiff plates for the associated vulcanization molds, the fine slits are twisted about an at least approximately radially extending twist axis. The fine slits preferably extend continuously from their roots into the tread surface region proper.

Abstract: A vulcanized molded tire, comprising a carcass of one or more plies of rubberized cord fabric, sidewalls, a tread band with shoulders at the joining points between said sidewalls and tread, and a breaker comprising a binding structure on each lateral portion inserted between the carcass and the tread band. The carcass plies have a profile in the cross-section comprising in each shoulder a curvilinear tract with the concavity faced towards the outside of the tire, disposed in underlying position with respect to the edges of said breaker and in correspondence with said binding structures.

Abstract: The positioning of fabric wrapped rubber insulation between a steel bead and a radial steel body ply eliminates failures in the bead areas of tires due to the direct contact of the steel body ply and bead bundle wires.

Abstract: A method for retreading vehicle tires. A carcass is provided with a prevulcanized tread and an unvulcanized tie-gum layer between the carcass and tread. A microwave applicator is located above the tread for emitting microwaves to the tire for creating heat energy in the tire. A reflector for microwaves comprising an electrically conductive material is attached in connection to or in the tie-gum layer to achieve high quality rapid vulcanization without heating the carcass.

Abstract: A tie-gum layer for retreading vehicle tires. In carrying forth retreading of a vehicle tire, a prevulcanized carcass is provided with a prevulcanized tread and an unvulcanized tie-gum layer between the carcass and tread. A microwave applicator is located above the tread for emitting microwaves to the tires for creating heat energy in the tire. A reflector for microwaves comprising an electrically conductive material is provided in association with the tie-gum layer for providing high quality rapid vulcanization without heating the carcass.

Abstract: A pneumatic tire and a method of constructing a tire bead for the same, in which the tire has a bead portion which is reinforced by a bead core of wire running around the bead portion and the wire is housed in a circular elastomeric support which forms a cradle in which the wire is located. The bead can be made by winding wire around the preformed elastomeric cradle.

Abstract: A tire which can be used without an inner tube on a standard "safety" rim, each of the beads of which tire has, on the one hand, a base of a width L.sub.2, comprising essentially a cylindrical zone of diameter D.sub.2, equal to the diameter D.sub.1 of the cylindrical hump of the rim and having an axial width l.sub.23 which is between 0.15 L.sub.2 and 0.25 L.sub.2, and a frustoconical zone of an axial width l.sub.24 which is between 0.45 L.sub.2 and 0.65 L.sub.2, the generatrix of the frustoconical zone forming with the axis of rotation of the tire an angle .beta. such that tan .beta. is between 0.5 and 0.6, and, on the other hand, a reinforcing bead ring of an interior diameter D.sub.3 which is very little different from D.sub.1, the center O.sub.3 of a circle circumscribed around the cross section thereof being located at a distance L.sub.3 from the rim flange such that the clamp on the rim is at least equal to 0.45.