Sewing machine with improved non-ravel seaming controller
US4080914A · kind A · utility
18Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1976 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Sep 22, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B69/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a control circuit for controlling the rotating speed of a clutch and brake motor of a sewing machine capable of performing non-ravel seaming, an improved non-ravel seaming controller for enabling non-ravel seaming during a certain number of seams at the start of sewing and for generating a medium speed signal at a predetermined level during a certain number of seams at the end of sewing to enable non-ravel seaming at such time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.