Control mechanism for sewing machine stitch forming mechanism
US4658743A · kind A · utility
1Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1986 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Mar 17, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B19/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine having feed control linkage spring biased in one direction and manual selector cams effecting feed control linkage settings in buttonhole stitch formation, one selector cam including a projection effecting abnormal control linkage position from which the control linkage shifts to final setting in the spring bias direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.