Self-threading capstan drive

Details Self-threading capstan drive Self-threading capstan drive

1985-12-23

1987-01-06

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

242155BW, 254333, 254371, 254383, 254389, B66D 126, B66D 134

Patent

active

046341021

ABSTRACT:
A self-threading capstan drive includes two sheaves mounted in a frame, each having a spiral groove with approximately three turns. The sheaves are slightly misaligned so that an elongated sonar array is directed from one sheave to the next without lateral bending. A pair of containment troughs are aligned with the top and bottoms of the sheaves to direct the sonar array between the sheaves. At least one of the sheaves is motor-driven such that its direction of rotation is reversible, the sonar array being reeled onto and off of a storage reel. Each of the sheaves and the containment troughs includes a groove with an inner channel whose dimensions accommodate the sonar array and an outer channel of larger diameter accommodating an endless tubular belt which recirculates over both sheaves and makes contact throughout most of its length with the sonar array, positively driving and carrying the sonar array in either direction.

REFERENCES:
patent: 1750826 (1930-03-01), Watson
patent: 3729173 (1973-04-01), Levardon
patent: 3887164 (1975-06-01), Coombs

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