Telephone Cables Limited

Lawrence I Smith

Philip A O'Bow-Hove

An optical fibre cable comprising a generally non-metallic central core encased in a rigid metallic tube, at least one layer of longitudinal strength members which, or the inner one of which, overlays and is in contact with the rigid metallic tube, and a sheath overlaying the strength member layer, the layer of strength members including, in a respective gap or gaps, at least one longitudinally-welded metallic tube within which is encased at least one optical fibre.

Optical fibre cable

An optical fibre cable especially for submarine use has a core (1) surrounded by a layer (5, 6, 7) of strength members which include both wires (6) and laser-welded metallic tubes (7) containing the optical fibers (5).

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London, United Kingdom

Lawrence I Smith