Textiles: spinning – twisting – and twining – Apparatus and processes – Delivery twist type
Patent
1984-12-24
1986-07-01
Levy, Stuart S.
Textiles: spinning, twisting, and twining
Apparatus and processes
Delivery twist type
57264, 242151, D01H 702, D07B 302, B65H 5924
Patent
active
045972559
ABSTRACT:
A device for controlling the twist associated with optical fiber being wo on a bobbin is disclosed. Signal transmission analysis in fibers wound on bobbins require techniques not normally encountered when considering long straight fibers. Signal loss on a fiber cable payout assembly is mainly due to small bends in the fiber at crossover positions and in the transmission regions where the winding travel changes directions. The signal attenuation in a length of optical fiber is also known to be a function of the amount of twist in the fiber both in the wound and payed out states. This invention allows the amount of twist of the optical fiber to be precisely controlled from zero to full (360 degrees twist per turn of the bobbin) twist to provide optimum signal transmission for both the wound and payed out states.
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Hunter Joe S.
Ruffin Paul B.
Gibson Robert P.
Hail III Joseph J.
Hilton Harold W.
Lane Anthony T.
Levy Stuart S.
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