Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1975-02-18
1977-02-08
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
57149, 57162, D02G 318, D02G 340
Patent
active
RE0291331
ABSTRACT:
A composite glass fiber cable is disclosed having a negative linear coefficient of thermal expansion which is controllable by variation of the helical angle or angles of twist of helically plied glass roving to substantially zero change in length over a wide variation in environmental temperatures under varying load conditions. It is possible, by controlling the helical angle and maintaining it constant from the cable center to outer surface, to control thermal elongation effects on the cable to obtain either expanding, contracting or constant length cables over a wide temperature range.
REFERENCES:
patent: 3309861 (1967-03-01), Pierson et al.
patent: 3371476 (1968-03-01), Costello et al.
patent: 3662533 (1972-05-01), Snellman et al.
Hudson Willard G.
Snellman Donald L.
Norfin, Inc.
Petrakes John
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