Roll for spreading and guiding a fabric web
US5011060A · kind A · utility
10Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/032
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A combined fabric stretching and straightening apparatus is comprised of a pair of cylinders having helical configurations on their periphery the cylinders being mounted for rotation on a shaft adapted to be driven in a direction opposite the direction of feed of a fabric web. The cylinders may rotate relative to each other and the shaft or may be coupled to rotate with the shaft by clutches interposed between the cylinders and shaft. Sensors are optionally provided for energizing one or the other clutch so as to center the fabric as it is fed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.