Thread-draw-off guide attached to a spinning rotor of an open-end spinning unit
US3986332A · kind A · utility
5Cited by
7References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 21, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | May 21, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved thread-draw-off guide attached to a spinning rotor of an open-end spinning unit. The thread-draw-off guide is provided with a cylindrical annular guide portion and a radial outer surface extended outward from the cylindrical annular guide portion and the above-mentioned radial outer surface is formed with a roughened friction surface characterized in that the coefficient of friction thereof against a yarn in a radial direction is smaller than the coefficient of friction thereof against a yarn in a concentric direction thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.