Sewing – Special machines – Darning
Patent
1978-06-09
1980-10-14
Schroeder, Werner H.
Sewing
Special machines
Darning
11212115, 112305, 112306, D05B 3510
Patent
active
042274710
ABSTRACT:
A system for the edge-parallel sewing of a workpiece, consisting of a plurality of layers, together to form a seam, e.g. in the production of trouser legs, pockets, shirts and the like, comprises a workpiece guide in the region of the needle path and formed with separators interposed between the layers, and a drag-clamping device which engages a portion of the stack of fabric layers remote from the incipient stitching operation to apply a stretching or drag force thereto. According to the invention, a retracting device is provided which, upon approach of the drag clamp to the stitching location, withdraws the guide device out of the path of the clamp.
REFERENCES:
patent: 3903818 (1975-09-01), Marforio
patent: 4013025 (1977-03-01), Marforio
patent: 4019448 (1977-04-01), Marforio
patent: 4062309 (1977-12-01), Pollmeier et al.
patent: 4086860 (1978-05-01), Kosnow et al.
patent: 4102280 (1978-07-01), Hannemann
patent: 4102281 (1978-07-01), Collbrunn
patent: 4116142 (1978-09-01), Sanvito
patent: 4135464 (1979-01-01), Sanvito
Collbrunn Harald
Fransing Heinz
Hannemann Franz
Durkoppwerke GmbH Bielefeld
Falik Andrew M.
Ross Karl F.
Schroeder Werner H.
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