Abstract: An elastomeric member for a tire-building machine, such as an inflatable bead turn-up bladder, center sleeve or bead lock sleeve, includes at least one base layer or sleeve of elastomeric material which terminates in a pair of end members for mounting the sleeve on the tire-building machine. A plurality of reinforcing cords may be embedded within the sleeve to provide internal reinforcement. A strip of an abrasion-resistantmaterial is bonded to all or a portion of the inner or outer surfaces of the sleeve to protect those areas of the sleeve that are subject to abrasion when contacting various portions of the tire or tire-building machine during assembly of a green tire carcass. A coating of an adhesion-release material may be applied to portions of the strip of abrasion-resistant material to reduce adhesion of the sleeve to the tacky elastomeric portions of the green tire carcass when contacted by expansion or movement of the sleeve during assembly of the green tire.

Abstract: Elastomer structures having exposed controlled surface release characteristics can be made by coating at least a portion of their surface with a releasing composition comprising (a) a chlorosulphonated polymer; (b) a reinforcing filler and (c) a green tackifying agent. Optionally, these compositions can also contain a chemical curing system and one or more volatile solvent/diluent viscosity-reducing vehicle. In a specific example, the coating are applied to flexible structures used in machines for the manufacture of articles having natural tack due to their rubber or elastomer content.

Abstract: Elastomer structures having exposed controlled surface release characteristics can be made by coating at least a portion of their surface with a releasing composition comprising (a) a chlorosulphonated polymer; (b) a reinforcing filler and (c) a green tackifying agent. Optionally, these compositions can also contain a chemical curing system and one or more volatile solvent/diluent viscosity-reducing vehicle. In a specific example, the coating are applied to flexible structures used in machines for the manufacture of articles having natural tack due to their rubber or elastomer content.

Abstract: An elastomeric hinge spring intended primarily for the doors of vehicles, has an outwardly projecting detent formed on a first bracket mounted on the vehicle frame and a roller formed of a compressible elastomeric material mounted on a second bracket attached to the vehicle door. The detent is in the path of movement followed by the roller upon movement of the second bracket and door toward the closed position. The roller retains the door in the open position requiring temporary compression of the roller to move of the door toward the closed position. The detent may have two projections which provide an intermediate door position or have an elongated ramp configuration to achieve other door opening and closing characteristics. Another detent may be formed on the first bracket to partially compress the roller when the door is in the closed position to bias the door toward the open position. The elastomeric roller completely eliminates metal spring components heretofore used in prior hinge spring devices.