Apparatus for making retractile cords

Details Apparatus for making retractile cords Apparatus for making retractile cords

1985-07-10

1986-11-18

Brody, Christopher W.

Metallurgical apparatus

Means treating a continuum of work

With heating means

219 1061R, 266105, 266249, C21D 100

Patent

active

046231293

ABSTRACT:
A leading end portion (33) of a supply of cordge (31) is clamped to a mandrel (32) such that it is straight, after which a plurality of convolutions of the cordage are wound on the mandrel. The cordage is severed from the supply and a trailing end portion (34) of the wound cordage is clamped to the mandrel in a manner which causes it to be straight and hence suitable for termination with a modular plug (37). The coiled cordage is heated and cooled and is then removed from the mandrel while simultaneously the direction of the helices is reversed. Then the cordage is severed at a predetermined location to produce two retractile cords, for example, one including the leading end portion of the length of wound cordage and a newly formed straight trailing portion. The second cord includes a newly formed straight leading end portion and the initial trailing end portion. The newly formed end portion of each cord is caused to be held in a straight configuration and annealed to cause it to retain that configuration. This facilitates the termination of the newly formed end of each cord and allows automatic cord-making apparatus to be used to make cords of varying lengths.

REFERENCES:
patent: 3823927 (1974-07-01), Budzinski
patent: 4251704 (1981-02-01), Masie et al.
patent: 4251705 (1981-02-01), Balzer

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