Pulley-block weighing-balance
US4222551A · kind A · utility
6Cited by
4References
12Claims
0Family size
Inventor
Key dates
| Filing date | Sep 29, 1978 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Sep 29, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The pulley-block balance comprises at least one loose pulley, a hollow coaxial support fitted with ball-bearings for supporting the pulley or pulleys, and a load-lifting hook. Coupling means between the hook and the support comprise a movable member which is capable of undergoing displacement at least at the point of application of the force arising from the load and is subjected to a restoring action in the direction opposite to the force. The movable member controls load-indicating means as a result of its displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.