Shoe press head indexing system
US6592719B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Sep 23, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/365
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A shoe press head indexing system wherein axial tension is applied to a blanket in a shoe press of a papermaking machine by means of respective fluid actuated piston and cylinder assemblies which are mounted inside the blanket and apply axial pressure to the first and second heads between which the blanket is mounted. Neither head is fixed or limited in position at any time. The respective fluid assemblies include respective displacement sensors whereby the positions of the heads, and thereby of the blanket, relative to the press can be determined and monitored. Automatic adjustments can then be made to the pressure in the assemblies and hence to the positions of the heads to maintain the blanket in substantially central position on the press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.