U.S. Philips Corporation

Veit M Kolschbach

Hans-Joachim Schmitz

Gerald Znoyek

Hans-Peter Caspar

Norbert Wenzel

Joerg-Michael Schneider

Dieter E Lachmann

Dagmar Schutten

Hermann-Josef Broeckmann

The invention relates to a method of producing an optical cable in which at least one optical waveguide fed forward from a supply reel is provided with a loosely surrounding jacket by means of extrusion, whose length is subsequently reduced relative to the length of the optical waveguide travelling through the expander and is thereafter wound-up. The excessive length of the optical waveguide is consequently distributed uniformly along the overall length of the optical cable, because of the fact that the optical waveguides paid-out from the supply reel are stranded before they are fed into the extruder.

Method of producing an optical cable

The invention relates to a method of blowing a line (1) into an empty sheath (13) in which the line (1) is unreeled from a storage roll and is transported in the empty sheath (13) by means of compressed air blown into the empty sheath (13). An undisturbed unreeling of the line from the roll is made possible also at very high unreeling speeds in that the storage roll is a self-supporting criss-crossed roll (4) having no coil former and contains a line comprising a sheath which envelops a LWG or an electrical conductor which sheath when wound in the criss-crossed roll comprises a flattened cross-sectional contour which is widened in the direction of the winding plane.

Method of blowing a line into an empty sheath

The invention relates to a roll manufactured with a light waveguide conductor (LWG-conductor), in particular for the transmission of optical signals from and to, respectively, a moving body. A perfect winding construction from which the conductor can be unreeled without interference is obtained in that the LWG-conductor (1) is wound to form a self-supporting cross-roll without a winding core.

Roll manufactured with a light waveguide conductor

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Cologne, Germany

Veit M Kolschbach