Open end spun slub yarn
US4144703A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1978 |
| Grant date | Mar 20, 1979 |
| Priority date | — |
| Expiry date | Mar 24, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G3/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus to produce slub or thick and thin yarns with twist variation on open end spinning machines by changing the speed of the yarn as it exits from the rotor of the open end spinning machine. The speed of the yarn is varied by a pivotally mounted lever member which varies the length of the yarn from the exit of the rotor to the yarn delivery rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.