Elevator cable tensioning device and method
US6223862A · kind A · utility
16Cited by
20References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jun 17, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Jun 17, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device and method are set forth for tensioning elevator cables. The device includes a platform supporting a plurality of hydraulic cylinders each adapted to be coupled to a thimble rod for a cable. Hydraulic fluid is supplied to each cylinder at the same pressure until each cable load is transferred from the cable system hitch plate to the platform indicating that each cable is now under the same tension. The thimble rods are adjusted with the cables now at the same tension and the hydraulic fluid is vented from the cylinders to transfer the cable loads back to the hitch plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.