At&t Bell Laboratories

Bell Telephone Laboratories

Kirk P Wells

Albert L Hale

Manuel R Santana

Donald R Rutledge

Daniel L Pope

David W Gibson

Optical fiber (20) which may be disposed in the form of a ribbon (28,30), for example, is caused to become disposed in a conduit (42) such as a duct which may exist in the field by introducing the optical fiber and a pressurized liquid transporting medium (37) into the conduit. The liquid transporting medium is effective to cause the optical fiber to be moved along in the conduit to cause a leading end of the fiber to emerge from a far end of the conduit and be accessible for connective arrangements, for example.

Apparatus for installing optical fiber in conduit

A capstan winch for pulling cable through conduit includes means for measuring the torque applied to the capstan and a take-up reel. The torque measuring means comprises an inner drum connected by a tension spring to a concentric outer drum. A patterned disc on the inner drum is visible through a window in the outer drum. The pattern indicates the relative position of the inner and outer drums, which is correlated to the applied torque.

Apparatus for adjusting cable tension

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Glen Gardner, NJ, United States of America

Kirk P Wells