Abstract: Apparatus for transferring a looped article to a cylindrical structure, comprising a collapsible ring structure having a center axis aligned with the center axis of the cylindrical structure and a centering plane parallel with the central plane of the cylindrical structure, the ring structure being radially deformable about the center axis thereof, a carrier supporting the ring structure and operative to move the ring structure toward and away from the cylindrical structure, and plural pairs of centering elements provided radially inside the ring structure. Each pair of centering elements are located on both sides of the centering plane of the ring structure and consist of centering elements located on both sides of the centering plane of the ring structure and movable toward and away from the centering plane of the ring structure.

Abstract: A tire building machine and method employing a tire building drum for receiving at least one ply of tire material having an edge overhanging an axial end of the drum, a bladder turn-up mechanism extending axially outwardly from the drum, an annular array of radially contractible ply-down fingers movable axially to and from a position encircling the overhanging ply edge, and an axially movable ring device operative first to effect radial contraction of the ply-down fingers to turn the ply edge down over the end of the drum, then to set a tire bead against the turned down ply edge at the end of the drum, and then to push the bladder of the turn-up mechanism when inflated to cause the ply edge to be progressively wrapped around the bead and then over the drum.

Abstract: A closure is provided for sealing and repairing a puncture of a tire. The closure is a resilient plug of a rubber-like material stiffer and more durable than prior closures having a generally cylindrical shank portion and an adjoining circular head portion. The periphery of the shank portion has a labyrinth of closely spaced sealing rings and grooves therebetween. When the shank portion is forcibly engaged with a puncture, the sealing rings individually radially compress and locally conform to the size and shape of the puncture thereby providing multiple sealing members with the puncture. Additional sealing is provided by an auxiliary sealing ring on the head portion of the closure which is adhesively bonded to the inner surface of the tire, adjacent to the puncture. Tool attaching means are provided on the closure for forcibly engaging the closure with the puncture.

Abstract: An anti-skid device is intended for use on pneumatic tires when the tires are used on ice and snow. The device includes a supporting disk with anti-skid arms pivotally displaceable about axes extending parallel to the axis of the wheel on which the pneumatic tire is mounted. The supporting disk is fixed to the wheel by a fixing disk and a retaining ring mounted on the wheel rim. The combination of the fixing disk and the retaining ring secure the supporting disk on a hub formed on the fixing disk. The supporting disk is arranged so that there is a certain amount of clearance relative to the hub for performing eccentric rotary movement for adapting the device to any elastic deformation of the pneumatic tire.

Abstract: A tire chain device of the type which has a rigid structure positioned on the inner side of the wheel upon which it is installed, said rigid structure being comprised of an adjustable length horizontal strap and two rigid depending straps pivoted from either end thereof in a manner that restricts pivoting more than 90.degree., the two ends of the horizontal strap of said inner structure being connected by two short cross links to an adjustable length outer strap, and the lower end of each depending strap being removably connected by two long cross links to a plurality of posts having expanded ends spaced along the exposed side of the outer strap. In another mode of the invention the inner structure is comprised of five rigid straps including four of equal length and shape pivotally depending from one horizontal strap such that they form five sides of an octagon when pivoted to their maximum outward extent.

Abstract: The invention relates to a vehicle wheel with internally located emergency wheel, which is composed of a plurality of segments, preferably four segments. The segments have a substantially double T-shaped cross-section. Each segment is clamped in the well-base channel of the wheel rim by means of two clamp screws. In order to facilitate assembly of the emergency wheel, a clear space kept totally free from other installations is provided between the segments and the tire beads supported at the wheel rim. This space permits easy alignability and mobility of the segment pieces in the circumferential direction. Axial grooves on the radial inner sides of the segments, at an interval corresponding approximately to the diameter of the clamp screws, permits the circumferential alignment of the segments during the assembly by means of a screwdriver or the like. The segments are fastened with two screws each.

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: A vehicle wheel-tire assembly wherein the tire has a low inflation pressure (large tire footprint) in a low vehicle speed range, and a large inflation pressure (small tire footprint) in a high vehicle speed range. The tire is partitioned into a series of circumferential compartments, with each compartment being provided with a valve mechanism for introducing air into the compartment and/or withdrawing air from the compartment as needed to maintain desired inflation pressures in the different vehicle speed ranges. The system is contained entirely in the wheel-tire assembly; no external air compressors or control valves are utilized.

Abstract: This invention relates to a method for applying a tread to a tire, whereby around a toroidal tire a layer of non-vulcanized rubber is applied, which will form the tread area of the tire after vulcanization in the vulcanization press; and whereby the thus prepared tire is vulcanized in vulcanization press. According to the invention, before the vulcanization of the thus prepared tire in a vulcanization press, portions of the layer of non-vulcanized rubber are removed by peeling or by forming peels of non-vulcanized rubber, so that the shape of the peeled tire is adapted to the shape of the vulcanization press. The invention also relates to a machine for carrying out the method according to the invention.

Abstract: A tire pressure control system having a pressure switch installed in a rim, which pressure switch, as part of a tuned circuit, damps, across an air gap, an HF transmitter, installed in a wheel web and having downstream analysis electronics, the pressure switch having a diaphragm pressure cell with a reference pressure, the diaphragm of which reference cell is subjected on one side to the reference pressure and on the other side to the tire pressure. A valve installed in the pressure switch makes it possible to adjust the reference pressure so that, when filling the tire, the desired tire pressure is simultaneously retained as the new reference pressure in the diaphragm pressure cell for the tire pressure control system.

Abstract: A method for bonding molded components to films, sheeting or shaped members, in which the molded element is constituted of a plastic resin and filler, and is bonded to the sheeting or member. The sheeting or film or shaped member, or plurality thereof, and at least one prefinished but not yet hardened molding composition is introduced into a mold and maintained under a processing pressure and temperature for the hardening of the molded components. The preconditioned and still soft molding composition is directly bonded to the sheeting or film or shaped member in that the plastic resin of the molding composition is partially pressed outwardly during the molding operation so as to bond with the sheeting or shaped member, and thereafter cures or hardens.

Abstract: A method and apparatus for use at the stage of a radial tire building process at which a tread and breaker, and sidewall rubbers, are added to the expanded carcass. A tread assembly is built, comprising tread rubber breaker and sidewall rubbers and is then located around the carcass which is then expanded into the tread assembly. A tread assembly former has a central portion expansible to bring side portions to a frusto-conical shape.

Abstract: A traction element for a traction chain for a wheel of a vehicle, especially a pneumatic tire wheel, has a flat oval configuration and is formed in one piece from a die forged steel with four eyes at corners of an imaginary rectangle along the sides of which transverse ribs and ribs parallel to the direction of travel are provided. The body is in the form of a ring extending substantially the full width of the tire.

Abstract: The invention relates to a device for fitting and fixing gripping shoes on vehicle wheels. Four gripping shoes are fitted at the one end of respective arms which, after being fitted on the wheel, form a cross. The other ends of the arms of the gripping shoes are toothed and the arms are slidingly suspended in their longitudinal directions relative to a housing centrally situated with respect to the wheel and are movable by means of a gear wheel, rotatably mounted in the housing. The gear wheel engages with the teeth on the arms and is rotatable by means of an operating mechanism. The centrally situated housing is shaped from one piece in which there are arranged four channels for slidingly suspending and guiding the arms of the gripping shoes. The channels are running from the lower part and in the same plane on each of the short sides of the centrally situated housing and are running out at the upper part and in the same plane on opposite short sides of the centrally situated housing.

Abstract: A roller for moving equipment such as furniture has a wheel whose wheel disk is provided with a rim having a pair of outwardly extending flanges. The tire mounted on this rim has an inner portion wholely received between the flanges and an outwardly portion lying wholely outwardly of the flanges. The inner portion is provided with such bores in angularly equi-spaced relationship and wholely within the circumference of the flanges so as to be closed therebetween. The outer portion is flush with the outer surfaces of the flanges.

Abstract: A tire and antiskid net for vehicle tires, particularly for tires of heavy earth moving machines, has a plurality of vertical members arranged to extend substantially normally to a tire surface, a plurality of ring-shaped connecting members of a limited length engaging the vertical members and arranged to extend substantially parallel to the tire surface, and a plurality of sleeve-shaped closure members fitted onto the ends of each connecting member in their abutting position so as to hold together the abutting ends of each of the connecting members.

Abstract: An antislip tire chain has provided therewith an inner part and an outer part joined together by a tread part. The inner part includes a fastener formed by a fastener member and a counter fastener member. An introduction opening of the fastener member is open in a direction towards the counter fastener member; via a guide portion extending transversely of the insertion direction of the counter fastener member, the fastener member is joined to an attachment or securing opening. In a region between the introduction opening and the attachment opening, which lies transversely of the guide portion, there is a securing element for the engaged counter fastener member. The fastener can be easily closed, the counter fastener member being reliably secured against unintentional release.

Abstract: An improved tire patch is disclosed herein for use either singularly or jointly with a tire repair plug for sealing a puncture of a vehicle tire. The improved repair patch includes a thick seal portion made of a soft resilient air impervious closed cell elastomer fully encased in a thin outer covering of the same material. The seal portion has parallel upper and lower faces and an aperture in the center portion thereof. A thin cover portion is bonded to the upper face of the thick portion and subtends the aperture thereof. The repair patch, when adhesively applied to the inner surface of a punctured tire with the aperture thereof positioned directly opposite the puncture, improves the durability of the repair, allows the joint use of a tire repair plug and avoids exposure of the repair patch to damage from the ends of broken steel reinforcing wires of steel belted radial ply tires.

Abstract: A method for forming tires by the use of a tire-forming machine having a drum bladder and a turnup bladder. An organic halogen compound having in the molecule thereof a ##STR1## bond, in which X represents a halogen atom, is applied to the surfaces of the drum bladder and turnup bladder of the machine to form a layer of the organic halogen compound, whereby unvulcanized rubber for tires is prevented from sticking to said bladders during the formation of tires form the unvulcanized rubber.

Abstract: A rubber material which is a cured rubber having a hardness of from 30.degree. as measured with an A-type rubber hardness tester to 15.degree. as measured with an F-type rubber hardness tester and an impact resilience of not less than 50%. The material has excellent vibration-proof, sound-proof, shock-absorbing or cushioning properties and is useful as a material for vibration-proof, sound-proof, shock-absorbing and cushioning members.