Apparatus for open-end or round-about spinning of a thread
US4241571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Mar 13, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for the open-end spinning or round-about spinning of a twisted thread from individual, discrete fibers using a known combination of paired rollers or drums, preferably air-permeable, perforated rollers or sieve drums cooperated with suction means within the rollers or drums to produce a line of thread formation extending longitudinally within the wedge-shaped nip formed by the rollers or drums, and further including a feed channel to supply individual fibers into the nip for twisting by the rollers or drums, and means to take off the twisted thread at one end of the nip. The apparatus is adjusted according to the invention to widen the nip in the plane of the thread forming line and in the direction of the thread take-off. Two equivalent adjustments of the nip lead to a spun thread of higher strength and better uniformity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.