Apparatus for twisting a yarn
US4129979A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H1/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn-twisting apparatus comprises a spindle receiving the supply spool or bobbin, a rotating can or sleeve surrounding the spool and the bobbin, a yarn takeup arrangement for drawing the yarn from the upper end of the can, and a housing surrounding the can. According to the invention, the stationary housing and the upper and lower ends of the spindle are provided with closures which reach close to the spindle at the bottom and form an opening traversed by the yarn at the top. Means is provided for enabling the upper closure to be removed or displaced for ready access to the interior of the housing. The system reduces the power consumption required for twisting the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.