Hydraulic roll protection system
US4514161A · kind A · utility
5Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Dec 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2201/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hydraulic roll protection system in which positioning of an adjustable roll relative to a fixed roll is caused by adjusting screws acting on movable journal boxes through a pressurized piston cylinder device. A relief valve between a hand pump and the cylinder acts to relieve excessive pressures. A switch valve connects the hand pump alternately to advance the roll journal to normal gap positions and to retract the roll from the fixed roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.