Yarn drawing and measuring device of a weaving loom
US4000762A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1975 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Mar 3, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Improvements are made in a weft yarn drawing and measuring device for a weaving loom in which a weft yarn to be picked into a shed of the loom is drawn off to a predetermined length by means of measuring and pressing rollers driven for rotation about horizontal axis. The pressing roller is constantly driven at a circumferential speed equal to the circumferential speed of rotation of the measuring roller and is movable between a position disengaged from the measuring roller for allowing the leading end of the weft yarn to rest on the measuring roller and a position in rolling contact with the measuring roller for drawing off the yarn gripped between the two rollers. The device is characterized by self-adjustable torque transmission means capable of transmitting a driving torque to the pressing roller and having an allowance for the movement of the pressing roller between the two relative positions thereof to the measuring roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.