Device for communicating a false twist by friction to at least one moving yarn
US4910953A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Jul 21, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H1/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The device according to the invention enables a false twist to be communicated to a fibrous material. The device includes two endless belts or aprons inclined with respect to each other and mounted on two pairs of rollers. According to the invention, the support rollers supporting the two aprons are mounted on the casing proper of the spindle via two support arms, one of the support arms of each pair being subjected to the action of pressure for ensuring tension of each apron and at least one of the other two support arms being mounted in articulated manner on the casing. Parallelism between the axes of the rollers is not able to be respected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.