Yarn false twisting apparatus having friction discs
US4406116A · kind A · utility
4Cited by
13References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Sep 27, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/087
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn false twisting apparatus is provided which includes a pair of twist imparting circular discs, with one of the discs being thin and flexible. A pressure applying member is positioned to upset the flexible disc toward the other disc at the twisting zone. In order to avoid undesired deformations of the flexible disc, the flexible disc includes reinforcing means, such as embedded reinforcing fibers, a reinforcing sheet, a discrete annular ring embedded in the material of the disc, or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.