Loop forming tool for cables and method of use thereof

Details Loop forming tool for cables and method of use thereof Loop forming tool for cables and method of use thereof

1991-01-23

1991-12-10

Jones, David

Metal deforming

By or with work-constrainer and/or manipulated work-forcer

140123, B21D 702

Patent

active

050707205

ABSTRACT:
A tool for use in forming expansion loops in electrical communication cables or similar materials is formed of an elongated channel with opposing bends, thus forming a sinusoidal curve. The channel is twisted in order that the outer radius of each of the bends is contained within the walls of the channel. The tool is used by placing a length of electrical cable within one end of the channel and holding the electrical cable and any supporting line within the channel. The electrical cable is then grasped and held within the opposite end of the tool channel, and the tool is manipulated to form a sinusoidal curve in the electrical cable. The tool is then displaced along the electrical cable and simultaneously rotated 180 degrees, resulting in a mirror image of the first position. By again bending the electrical cable within the channel of the tool, a curve opposite the first curve is formed in the electrical wire, thus completing the formation of an expansion loop of consistent size and bend radius.

REFERENCES:
patent: 543233 (1895-07-01), Forrester
patent: 907210 (1908-12-01), Williams
patent: 1211020 (1917-01-01), Welsby
patent: 2730157 (1956-01-01), Ponting
patent: 2804887 (1957-09-01), Reck
patent: 3855838 (1974-12-01), Jackson
patent: 4052879 (1977-10-01), Crees
patent: 4964290 (1990-10-01), Kimura

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