Feed regulator clamp
US4365569A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B27/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A feed regulator clamp in the shape of a bell crank having the pivot rod thereof retained in a slot in a sewing machine bed by a flat spring which also may serve to urge the clamp into clamping engagement with a feed regulator. A first arm of the bell crank comprising the clamp is for engagement with the feed regulator and a second arm of the bell crank is for engagement with a cam controlling the engagement of the first arm with the feed regulator. The flat spring which retains the clamp to the sewing machine bed urges the first arm into engagement with the feed regulator whenever permitted by the cam which is circular in cross-section except for a flat spot which, when aligned with the second arm, will permit the first arm to come into clamping engagement with the feed regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.