Seam folding and pressing attachment for sewing machines
US4016822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1975 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Nov 20, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2305/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An attachment for sewing machines for folding and pressing seam plies for sleeves, trousers and the like having a pair of endless belts or tapes between which the cloth being sewn is carried. After the seam has been sewn, the cloth is carried forwardly into the path of a V-shaped seam opening member which causes the seam plies to be separated, be positioned at right angle to the cloth and lie on either side of the seam in a common plane. Upon being carried further forwardly, the seam plies engages a seam folding member which guides and folds over the seam plies from their right angle position to a flattened position against the cloth whereby the seam plies lie in substantially the same plane as the two layers of cloth after which the heated rollers and a hot air blower presses the four layers of cloth in superimposed contact relation. A floating bow-like member positioned between the endless tapes supports the two layers of cloth as the seam is folded and permits the sewing of a seam to be sewn along both edges of a trouser leg portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.