Web pressing roller
US6045492A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1999 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C13/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roller is provided for a pressure treatment of a web of paper, textile, plastic film, and is composed of a rotary hollow cylinder which can be distinctly deformed under the effect of line forces in the roll nip. The roller includes a non-rotary cross-head which penetrates the rotary hollow cylinder over its length. On the side of the roll nip, hydraulic supporting elements are provided which can be pressed against the inside circumference of the hollow cylinder in the manner of piston/cylinder units. These supporting elements have a length of not more than 20 cm in the longitudinal direction of the cross-head, and are closely arranged next to one another in the longitudinal direction of the cross-head. The supporting elements can be driven independently of one another at least in several groups. A sealing strip is also provided which continues in one piece over several supporting elements. The supporting elements rest against the sealing strip from below, and the sealing strip acts against the inside circumference of the hollow cylinder, at the top. At the top, the sealing strip has a bearing pocket above each supporting element. The edges at the adjacent sides of bearing pockets…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.