Apparatus for picking the shuttles of a loom
US4373557A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D49/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for picking or firing a projectile-like shuttle contains a pair of rolls revolving at a relatively high rotational speed. The rolls of the roll pair can be simultaneously brought into contact with a related shuttle in order to accelerate the same by frictional forces. To that end the rolls are each arranged upon a pivotal arm and operatively connected with a control arrangement. The rolls possess a predetermined elasticity such that their radial springiness or resilient yielding action at least approximately linearly increases as a function of the increasing radial contact pressure upon bringing the rolls into contact with the shuttles. These measures ensure for a practically wear-free, absolutely precise and controllable mode of operation of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.