Battens system for raising and lowering sceneries on a stage
US4199133A · kind A · utility
19Cited by
10References
8Claims
0Family size
Inventors
Key dates
| Filing date | Mar 9, 1978 |
| Grant date | Apr 22, 1980 |
| Priority date | — |
| Expiry date | Mar 9, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/60
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A battens system for raising and lowering sceneries or other loads on a stage is disclosed. The system comprises a support, a roller upon which at least one cable supporting a scenery is wound, a bearing assembly secured to the support for rotatably mounting the roller and including inclined bearings for longitudinally moving such roller at each turn by a distance equal to the pitch of the cable wound on or unwound from the roller, and a drive for rotating such roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.