Some researches on the structure, strength and commercial testing of steel rope

Abstract

Historical and Introductory Sketch: Invention and Development of Wire RopesRotation and Cross section: Rotation; The circular Wire; The non- circular Wire Section.Structure of the Strand and Rope: Winding Machines; The Lathe as a Winding Machine; Lay; Angle of helix; Curvature; Length of a wire; The Wire-strand surface.The Wire: Testing Machines; An Exteneometry; The Straight steel wire; Wire Tests; Slip Surface; Combined Stresses, Tension and Bending; Combined Stresses, Tension and Torsion.The Rope; Forces acting in the rope; Core and strands, strains: Procedure in commercial testing.The Rope; Rope Tests; Orthogonal surface of fracture; Ropes to the same specification; Efficiency; Fracture; Some special forms of ropes.The Rope in use: Bending and Flexibility; Fatigue and shock; Other Working corditions; A recent problem; Photographs of specimens.