Abstract: A cable for reinforcing objects formed of elastic or easily deformable material, such as automobile tires and conveyor belts, has as conventional components a core and at least one peripheral layer surrounding the core, each component being formed of elements, such as individual wires or strands of wires. The resistance of such a reinforcing cable to fatigue and/or to wear is increased due to the fact that at least two consecutive components in contact with each other in radial direction are constituted of elements made of material having moduli of elasticity which differ from one component to the other.

Abstract: The deleterious foam encountered during the bulk polymerization of diene monomers with each other or with vinyl aromatic compounds can be prevented by conducting the bulk polymerization in the presence of an organosiloxane anti-foam compound, which compound does not adversely affect either the coordination catalyst system or the properties of the polymer product.

Abstract: The durability and stability of the beads of a radial ply pneumatic tire are improved by making the tensions acting on the main radial carcass ply and on the portion thereof folded over the bead ring different from each other and having the tension acting on the main radial carcass ply greater than the tension acting on the folded-over portion.

Abstract: Tires, especially radial carcass tires, have the properties of their sidewalls improved by forming at least the outer surface of the sidewalls from organic peroxide vulcanizates of one or more mixes of elastomers of the diene type and of the ethylene-propylene type.

Abstract: The tread reinforcement of a pneumatic tire comprises at least two plies of cords that are crossed with respect to each other and oblique with respect to the longitudinal direction. The carcass reinforcement comprises at least one principal ply extending from one bead to the other and two auxiliary plies having cords oblique with respect to the longitudinal direction and arranged one on one side and the other on the other side of the median plane of the tire. The cords of the principal ply are oblique with respect to the radial direction in the zones in which the auxiliary plies are mounted and radial in other zones.

Abstract: Thin, continuous steel wires are produced by solidification of a jet of liquid steel projected into a cooling fluid. The solidication is initiated and accelerated by the presence of oxygen in the cooling fluid and by selection of the relative amounts of silicon and manganese in the liquid steel so as to provide solid silica as the oxidation product which is principally formed.