Yarn-twisting apparatus provided with thread-wetting means
US3983685A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1975 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Jul 21, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B1/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A thread is pulled off a yarn package and down past a thread brake into a spindle shaft forming part of a rotating structure. The thread exits at the bottom of the shaft from a radial opening in a payoff disk having a frustoconical surface formed with a peripheral groove. The thread passes from below across this groove and is then pulled up between the yarn package and a ballon-limiting cylinder. A reservoir disposed next to this structure is filled with a treatment liquid feeding an applicator whose upper end projects into the groove in the payoff disk. A wick in the applicator tube conducts the liquid up to the tip of the tube and moistens the thread as it passes periodically between this tip and the rotating disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.