Method of blowing a line into an empty sheath

Details Method of blowing a line into an empty sheath Method of blowing a line into an empty sheath

1989-12-05

1991-09-10

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242159, 2541344, 226 97, B65H 4902, B65H 5502

Patent

active

050466747

ABSTRACT:
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.

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"Advances in Blown Fibre Installation Methods", by R. A. Freeman et al., Br. Telecom Technology J. vol. 5 No. 3 Jul. 1987.

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