Process for clamping, fastening and presentation of weft threads in gripper weaving looms and device used to this end
US4840203A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Apr 3, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for clamping, holding and presenting weft threads in a weaving loom is disclosed having: a movable clamp for each weft thread which keeps the corresponding weft threads clamped at their thread ends; thread guiding devices guiding of the weft threads from a supply to the corresponding clamp; and a driving and control mechanism for bringing a clamp successively into three positions for inserting the selected weft thread. The first position of the clamp is a storage position; the second position is located such that the weft thread between the clamp and the thread guiding devices is in the path of a gripper; and in the third position the clamp is located on the weft side near the cloth edge adjacent to the fell. Hooks fastened to the reed bring the insert weft thread back into the clamp during the beating movement of the reed. The hooks also act as a guiding element during the presentation of the weft thread to the gripper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.