Manufacture of cables

Details Manufacture of cables Manufacture of cables

1987-07-02

1988-11-22

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57293, 57296, D07B 714, H01B 1324

Patent

active

047856165

ABSTRACT:
In the manufacture of a cable having a plurality of filamentary members such as wires, optical fibres or the like within an extruded thermoplastic sheath the members are twisted into a periodically reversing helical configuration immediately prior to the extrusion of the sheath around them, and the extruded sheath is rapidly cooled on emergence from the extruder head so as to cause the extrudate to set and thereby retain the members in the twisted condition.

REFERENCES:
patent: 3889455 (1975-06-01), Portinari et al.
patent: 4017579 (1977-04-01), Roe et al.
patent: 4171609 (1979-10-01), Feese
patent: 4388800 (1983-06-01), Trezeguet et al.
patent: 4426837 (1984-01-01), Meilenner et al.
patent: 4441787 (1984-04-01), Lichtenberger
patent: 4541970 (1985-09-01), Caverley et al.
patent: 4620412 (1986-11-01), Portinari

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