Cable with impregnated fiber strength member for non-slip clamping

Claim 1

A composite cable comprising a tensile load carrier element, an overhead cable, a common protective covering enclosing said carrier element and said overhead cable and uniting the same, and connecting means transferring a tensile load to said carrier element, said covering comprising two channels, one for said carrier element and one for said overhead cable, said carrier element comprising a bundle of synthetic fibres having smooth surfaces and a tensile strength in excess of 200 kg/mm 2 , a modulus of elasticity in excess of 3000 kg/mm 2 , and an elongation at rupture of less than 10%, said fibres, in order to reduce the risk of slippage in connecting regions of said carrier element due to their smooth surfaces, being impregnated at least over at least the connecting regions thereof, with a material uniting the fibres of the element and, when subjected to compressive and/or bonding stress exceeding its ultimate strength for such stress, breaking down into a powder within the stressed areas and being broken down into a powder within the connecting regions thereby causing within such regions a wedging action both between the individual fibres of the bundle as well as at the exterior surface of the bundle as a whole.