Sewing machine
US5063866A · kind A · utility
11Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Nov 30, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B43/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a sewing machine, a thread-draw lever is driven in an oscillating movement, in synchronism with a needle bar, and carries a gripping hook for the thread, the thread being brought within reach of this hook by passing it into a longitudinal channel formed on an upper face of an upper arm of the casing of the machine. The arrangement permits the threading operation in a sewing machine to take place by simple insertion of the thread into the channel, without having to pass the thread through eyelets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.