Apparatus for producing spun yarn from textile fibers
US3972173A · kind A · utility
Inventor
Key dates
| Filing date | Apr 10, 1975 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Apr 10, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn is spun on a suction drum having a horizontal axis and operable to rotate in a on direction about the axis from textile fibers impinged n the drum throughout a suction zone. A suction box in the drum is operable to form the suction zone on the drum periphery and is angularly spaced by an acute angle from the zenith of the drum in an opposite direction. The suction zone has a sharply defined edge adjacent the zenith of the drum. The impinged fibers are twisted together to form a yarn tail and are subsequently spun to form a yarn under the action of components of force which are due to the rotation of the drum and the suction in the suction zone. The width of the suction zone equals the diameter of the yarn tail, measured in the predetermined direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.