Selvedging device with threading nozzle and tuck-in needle
US5080143A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/48
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pneumatic selvedging device for a loom has a weft yarn end temporarily retained by a threading nozzle. A tuck-in needle takes over the retained weft yarn end for drawing in between the warp yarns of a loom. The threading nozzle is mounted on a retaining arm which is pivotally mounted on a shaft disposed within a casing above the cloth and near the beating-up edge for the weft yarn. A second drive shaft is mounted in the same casing transverse to the shaft for the retaining arm for driving the tuck-in needle. The shaft for the tuck-in needle and the shaft for the threading nozzle are driven off a common drive shaft via cams and cam follow-up levers. A shears may also be mounted on the retaining arm and be actuated by a link pivotally connected between a pivotal blade of the shears and the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.