Sheave assembly with multiple pulleys used to measure cable angl

Details Sheave assembly with multiple pulleys used to measure cable angl Sheave assembly with multiple pulleys used to measure cable angl

1986-01-30

1987-09-01

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

33 1N, 7386245, 254403, 254415, B66D 306, G01L 508

Patent

active

046903801

ABSTRACT:
Disclosed is a counter-balanced sheave assembly for supporting a cable comprising a plurality of sheaves mounted in an arcuate path on a support frame; counter-balancing weights positioned above the support frame and rigidly connected thereto; and a suspension arrangement, connected at the center of the assembly, for providing rotation of the assembly about two perpendicular axes of rotation; and sensors are provided for determining downward force on the sheave assembly and the angle of the cable by monitoring the number of pulleys rotating.

REFERENCES:
patent: 2121870 (1938-06-01), Greene
patent: 2743606 (1956-05-01), Webber
patent: 3310981 (1967-03-01), Nixon et al.
patent: 3343810 (1967-09-01), Parnell
patent: 4034963 (1977-07-01), Warman et al.
patent: 4301995 (1981-11-01), Niskin
patent: 4417718 (1983-11-01), Niskin
patent: 4462570 (1984-07-01), Gagnet
patent: 4492363 (1985-01-01), Niskin
The General Oceanics Hydroblock System Notes on Tension Measurement by General Oceanics, Inc. pub. May 1982.

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