Process and device for the insertion of a weft thread into the space between two lines of warp thread
US4407335A · kind A · utility
Inventor
Key dates
| Filing date | Jan 27, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Jan 27, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a procedure and device for the insertion of a weft thread into the space between two lines of warp thread in a weaving loom without using any shuttle. As per the invention, the thread to be inserted is fed to a pair of casting rollers forming between them a gripping line, with a guide being positioned above said rollers, and a gripping device being positioned so that the thread forms, between the above-mentioned elements, an acute angle with the gripping line of these rollers, and is positioned outside of this gripping line before being cast. For casting the thread, a system allows the thread to be moved between the rollers which shape the loop by themselves from a length of thread pulled out of a storage space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.