Abstract: A pneumatic tire of the type comprising a carcass reinforced by radially extending cords, surmounted in the crown region by a substantially inextensible belt, reduces rim stress by virtue of having bias angle cord reinforcements in the lower sidewalls and the terminal portions of all radially extending carcass cords turned axially outwardly. Further reduction of rim stress by the tire is effected by employing a belt construction that resists bending.

Abstract: An internal tire lubricant which minimizes or prevents injury to a pneumatic tire when it runs flat, and which also assists in sealing small punctures, consists of a mixture of liquid or easily fusible materials, one of which is a partially crystalline solid olefine polymer, and another of which is an essentially noncrystalline liquid or solid hydrocarbon or analogous material.

Abstract: Heat formable elastomer products are made by vulcanizing block polymers having a central block of thermoplastic and terminal blocks of vulcanizable elastomer, preferably after addition of separately prepared compatible vulcanizable elastomer. The products when heated, shaped, and cooled, will retain the new shape until reheated, but with altered physical properties. When reheated, they tend to return to their vulcanized condition of shape and physical properties.

Abstract: A caliper type disc brake actuated by threaded members of a screw and nut assembly in which one of the members is axially movable but held against rotation and the other threaded member is rotatble relative to the caliper. The rotatable member is mounted for the application of force against the caliper during braking. Clamping force is applied to a friction lining carrier upon rotation of the rotatable threaded member in one direction. The threads of the threaded member have a helix angle and shape to cause overhauling rotation of the rotatable threaded member in the opposite direction upon release of the clamping force on the friction lining carrier for automatic return of the brake parts from a braking position to a position away from the disc.

Abstract: A disc brake of the floating caliper type in which the caliper extends axially over the edge of the brake disc and has radially extending members overlapping the opposite faces of the disc. A torque plate on one side of the disc has arms extending radially outward to positions on opposite sides of the caliper where a slider member is fastened to the arms. The slider member includes axially extending rails for sliding engagement with the caliper member and a tie bar connecting the rails. The tie bar is located radially inward of one of the radially extending members of the caliper to minimize the axial length of the brake assembly and damp the forces exerted on the rails by the lining carriers which are also slidably mounted on the rails.

Abstract: A disc brake of the floating caliper type having a rotating disc between a pair of lining carriers. A torque plate on one side of the disc has arms extending radially outward to separate support members. The support members extend over the edge of the disc for supporting both the lining carriers and permitting axial sliding movement of the carriers into and out of braking engagement with the disc. The caliper is also independently supported and in sliding engagement with the support members at the ends of the arms so that during braking the torque is transmitted directly to either one or the other of the arms and the only forces acting on the caliper member are the brake actuation force in a direction axially of the disc and the caliper supporting force.

Abstract: A thermal pressure relief apparatus in which an air release tube is connected to the air chamber within a tire rim assembly and extends along the outer surface of the rim. The tube is closed with a plug of eutectic material located in the tube at a critical position along the rim for release of the air from the tire when the temperature in the critical area exceeds a predetermined level. Installation and removal of the apparatus may be carried out without dismounting the tire. The passage used for communicating air from the air chamber to the air release tube may also be connected to an inflation valve for inflating the tire.

Abstract: An apparatus for indicating the time integral of the electrical power consumed in elastomer mixing, working, warming or other processing and for controlling the processing in accordance therewith. An electrical signal, derived from the electrical power consumed by an electrical motor driven elastomer processing apparatus, is compensated for no-load operation of the apparatus and then continuously integrated with respect to time to provide an output which is employed to produce a digital read-out of the energy consumed in the processing with control of the processing being effected in accordance therewith.

Abstract: A brake retractor assembly in which the automatic adjustment apparatus includes a perforated drag tube and a ball carried by an adjusting pin engageable with the tube. The ball is slightly larger than the inside diameter of the tube so that as the brake wears the ball is forced into the tube causing successive sections between the perforations to rupture and provide the necessary adjustment for wear.

Abstract: A tire designed for operation both as a pneumatic tire under ordinary conditions, and also without inflation under emergency conditions, has thick sidewalls made of low-hysteresis high-modulus vulcanized natural rubber composition containing reinforcing carbon black and also containing an effective anti-oxidant, together with a cobalt soap to prevent reduction in modulus during service of the tire.

Abstract: A brake disc mounting on a shaft in which a spacer is interposed between the disc and a pilot rib of the shaft to facilitate brake disc removal and reduce disc distortion effects. There may be an opening adjacent the spacer which provides for displacement of a portion of the spacer to accommodate the shrinkage. The spacer itself may provide for displacement caused by disc shrinkage. The spacer may be of a softer material than the disc or be resiliently deformable.

Abstract: The method of making a perforated particle screen having a base layer or high density polyethylene low melting index thermoplastic material with a cover layer of elastomeric material vulcanized integrally with the base layer. The method includes providing a mold with inserts for forming the perforations, filling the mold with granular plastic, covering the plastic with uncured elastomer and applying heat and pressure to the elastomer to vulcanize same integrally with the plastic as it melts and flows in the mold.