Apparatus and process suitable for twist-drawing a yarn
US4112667A · kind A · utility
4Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1977 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Feb 22, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H1/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn is twist-drawn on an apparatus employing a 2-for-1 twist spindle; at least one guide roll positioned above the spindle; means suitable for receiving a yarn from said guide roll and drawing the yarn; and means suitable for winding the drawn yarn, wherein the guide roll comprises a cylindrical surface mounted on a shaft which is attached to a base suitable for positioning the cylindrical surface so that the yarn rides on the surface of the roll in a relatively fixed position and a substantial amount of twist is not trapped in the yarn ahead of the guide roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.