Device for the insertion of weft threads into the shed of air-looms and adjustable blowers used to this end
US4813460A · kind A · utility
11Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Feb 20, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for the insertion of weft thread into a shed of air insertion looms primarily consists of the combination of a main nozzle, and of at least one auxiliary nozzle fixedly mounted before the main nozzle, the latter having an adjustable flow-through aperture for regulating the jet insertion medium. Associated with each auxiliary nozzle, a control means is utilized for the adjustment of the flow-through aperture. Various embodiments of aperture control are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.