Apparatus for twisting textile fibers
US4109454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Jun 3, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Two closely spaced apart, perforated suction drums are provided, which have parallel axes and confronting peripheral surface portions defining between them a region which is triangular in cross-section and adapted to receive fibers flying through a flight region which precedes said triangular region in a direction that is transverse to said axes. Suction means are operable to provide a suction zone in each of said confronting peripheral surface portions. Said drums are operable to rotate in the same sense so that fibers received in said triangular region and attracted to said suction zones by the operation of said suction means are twisted together by said drums to form a yarn. Yarn-withdrawing means are operable to withdraw said yarn from said triangular region toward one end thereof while holding said yarn against rotation. A throwing member is operable to move in said flight region toward said one end thereof in a plane which is transverse to said direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.