Pretension threading device
US3972298A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1975 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Jun 10, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B51/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Pretension threading device which includes two thread deflecting means supported on opposite sides of a pretension, and arranged to deflect thread caught and drawn into the thread deflecting means into wrap around the pretension. One thread deflecting means extends to beyond the pretension in a direction away from a thread supply tapering to a point beyond the pretension spaced from the adjacent sewing machine housing. The other thread deflecting means lies in covering relationship to the pretension, terminating at the pretension and tapering beyond the pretension device in a direction away from the thread supply to the adjacent sewing machine housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.