Hem folding attachment
US4055127A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1976 |
| Grant date | Oct 25, 1977 |
| Priority date | — |
| Expiry date | Mar 12, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2207/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A hem folding attachment for forming an S-shaped fold in the edge of a flexible sheet prior to the stitching of the folded edge by a sewing machine. The attachment includes first and second movable guides cooperably associated for forming the fold on the workpiece. The first movable guide has integrally formed thereon a hem fold control finger portion which extends parallel to the direction of feed and is interposed within the fold for effecting the movement of the fold to the sewing machine. The hem fold control finger portion is positioned within a cutout located on the top side of the throat plate whereas to maintain the presser foot in its normal operating position during the sewing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.