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Cable-reinforced-pneumatic-tires

Aluminum alloy bearing

The present invention concerns an aluminum alloy for shaft bearings wherein the alloy contains ...

Puncture-sealing pneumatic tire and a method of producing the tire

OF THE PREFERRED EMBODIMENTS In the FIGURE, the numerals 1, 2, 3 and 4 represent a tire, a bead ...

Method of manufacturing supports for porous filters

We claim: 1. A method of manufacturing filter supports, wherein rigid macroporous supports having ...

Safety pneumatic tire

What is claimed is: 1. In a tire having an inner wall defining a tire cavity and containing a ...

Self-sealing pneumatic tire

OF THE INVENTION FIG. 1 is a cross-sectional view of the self-sealing pneumatic tire of this ...

Method of preparing a self-sealing pneumatic tire

I claim: 1. A method of preparing a self-sealing pneumatic tire which comprises (A) building a ...

Radial tire for industrial vehicles

It is an object of this invention to provide a pneumatic tire for industrial vehicles which is free ...

Puncture-sealing tire

A puncture-sealing tubeless pneumatic tire has a soft (25-40 Shore A durometer), vulcanized inner ...

Polypropylene films

We claim: 1. A biaxially oriented polypropylene film containing from 1 to 40 percent by weight of a ...

Tire with self-sealing inner coating

What is claimed is: 1. A tire having a tread, sidewalls and an inner wall, said inner wall having, ...

Cable reinforced pneumatic tires

Details

Inventors: Boileau, Jacques;
Assignee: Compagnie Generale des Etablissements (Clermont-Ferrand, FR)
Primary Examiner: Kunin; Stephen G.
Assistant Examiner: Rishell, Jr.; Edmond G.
Attorney, Agent or Firm: Brumbaugh, Graves, Donohue & Raymond

Metal cables of improved fatigue strength, which are particularly suitable for use in an oblique folded ply of metal cables for tire tread reinforcement, comprise a visible outer layer of strands with each strand being formed of at least two elementary wires, the pitch of the strands being less than the pitch of the elementary wires, these two pitches being of the same direction (S or Z).

DETAILED DESCRIPTION Therefore, the pneumatic tire in accordance with the invention, having a reinforcement comprising at least one folded oblique ply of metal cables, the folded portion or portions of said ply being placed on the outside (with respect to the tire) of the nonfolded portion when said ply appears of the same type (S or Z) as the said metal cables or on the inside (with respect to the tire) of the nonfolded portion when said ply appears of a type (S or Z) different from the type (Z or S) of the said metal cables, the visible outer layer of said cables being formed of strands and each strand being formed of at least two elementary wires, is characterized by the fact that the cables of the said folded ply have their visible outer layer formed of strands the pitch of which strands is less than the pitch of the elementary wires constituting the strands, these two pitches being of the same direction (S or Z).

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