US 3,932,697 A · Rope terminations and methods and apparatus for fabricating the same

Abstract

Fittings are provided for use in terminating parallel yarn ropes containing one or more electrical conductors, and methods are disclosed for securing the fittings to the ropes to afford separation of the conductors from the rope and connection to electrical apparatus. One fitting has a frusto-conical body portion providing a tapered peripheral surface with an axial bore and a bail extending beyond the base of the body. The rope yarns are inserted into the bore at the narrow end of the fitting and divided into two pairs of bundles with each pair being splayed outward diametrically of the bore and returned along the outside of the fitting for wrapping helically in opposite directions for a predetermined distance about the periphery of the rope. The ends of the bundles are secured to the rope, so that when tension is applied between the bail and the rope, the wrapped bundles grip the outside of the rope to mount the fitting securely to the rope. In an alternate embodiment, the fitting includes a thimble having a narrow end located adjacent the end of the rope, and the rope yarns are divided into two bundles which extend in opposite directions in the channel around the thimble and which are wrapped helically about the rope similarly to the first embodiment. Both fittings and a short section of the rope adjacent thereto are encapsulated by a mass of polyurethane which rigidifies and protects the termination.

Claims9

Dependent claims

A termination of a length of rope having a plurality of rope yarns, comprising:

a termination fitting having an inner end,
fastening means carried by said fitting remote from said inner end,
said fitting having a peripheral surface with a curved portion remote from said inner end and diametrically-opposed portions tapering outwardly from said inner end,
said rope having a main section with said yarns closely associated with one another and an end section with said yarns separated into at least a pair of bundles,
said bundles extending outwardly around the curved portion of said peripheral surface and returning along said diametrically-opposed portions of said peripheral surface,
one of said pair of bundles being wrapped helically in one direction about the main section of the rope and the other of said bundles being wrapped helically in the opposite direction about said one bundle,
said bundles being wrapped for a predetermined distance along said main section of the rope and having ends, and
means securing said ends to the main section of said rope,
whereby the application of tension between the main section of the rope and the fastening means of the fitting causes the wrapped bundles to grip the rope for securely mounting the fitting thereto.

6 more elements

Dependencies are inferred from the claim text.

Rope terminations and methods and apparatus for fabricating the same

Life of this patent

Rope terminations and methods and apparatus for fabricating the same

Life of this patent

Abstract

Claims9