Weft accumulating method and assembly for weaving machines
US4821781A · kind A · utility
2Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Oct 27, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A weft accumulating method and assembly of a weaving loom for accumulating a lenght of weft thread to be inserted into a shed by a pick insertion assembly of the loom in which the accumulator comprises a weft supply; includes a drawing off device off a predetermined length of weft thread from the supply; at least one perforated cylindrical tube; a fluid blowing device to blow the drawn off weft through the tube; and a clamping device to open and close the end of the tube to accumulate weft thread in the tube when the device is closed and to supply the weft thread to the pick insertion assembly when the device is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.