US 4,270,341 A · Method of making a shape-stranded rope

Abstract

The disclosed method of making a shape-stranded rope includes twisting large wires into strands by twining them in at least one layer about a core with a sheathing of a soft deformable material, plastic drawing of the strands, forming the strands into a shaped profile and twisting the strands into the rope. The plastic drawing is effected until every round wire of the strand acquires a wedge-like profile, with the wires adjoining the sheathing becoming partly embedded in this sheathing, and the strand acquires a substantially smooth peripheral surface. The method enables, while using round wires, to increase the structural density of the strands, and also to enhance the flexibility, strength and wear resistance of the shape-stranded rope, the rope manufactured by the disclosed method being usable by various industries.

Claims9

Dependent claims

A method of making a shape-stranded rope, including:

providing a core with a sheathing of a deformable material;
twisting round wires into strands by winding these round wires in at least one layer about said core with the sheathing of the deformable material;
subjecting the strand thus formed to plastic drawing until each said round wire acquires a wedge-like profile, said plastic drawing forcing the wires adjoining the sheathing of said core to become partly embedded in this sheathing, and the strand attains a substantially smooth peripheral surface;
following said plastic drawing, compacting the strand thus obtained into a shaped profile, said compacting of the strand into the shaped profile is effected until some of the wires embedded in said sheathing engage said core;
and
twisting the strands thus obtained into the rope.

3 more elements

Dependencies are inferred from the claim text.

Method of making a shape-stranded rope

Life of this patent

Method of making a shape-stranded rope

Life of this patent

Abstract

Claims9