Sheave assembly with multiple pulleys used to measure cable angle
US4690380A · kind A · utility
5Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Jan 30, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.