Textiles: spinning – twisting – and twining – Apparatus and processes – Alternate twist
Patent
1990-10-16
1992-03-03
Hail, III, Joseph J.
Textiles: spinning, twisting, and twining
Apparatus and processes
Alternate twist
57295, 57336, 57335, 57344, D01H 1330, D01H 792, D02G 104, D02G 108
Patent
active
050921177
ABSTRACT:
A method and apparatus for producing an optical multi-fiber cable element provided with a second sheathing by extruding a loose secondary sheathing around a fiber bundle and stretching the fibers a desired extra length with respect to the sheathing, the fibers being guided in such a manner that the position of the fibers varies continuously during stretching. To produce an untwisted cable element and avoid variation in the fiber length, the secondary sheathing together with its fiber bundle is twisted around its axis after the extrusion or the sheathing to vary the twisting position of the fiber bundle as the sheathing and fibers approach the stretching step.
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Heikkila Jouko
Paivinen Teuvo
Hail III Joseph J.
Mansen Michael R.
Nokia-Maillefer Holding S.A.
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