Sewing – Stitch forming – Feeding work material
Patent
1990-02-13
1991-10-08
Schroeder, Werner H.
Sewing
Stitch forming
Feeding work material
112320, 112153, 1122623, D05B 2100, D05B 2714
Patent
active
050544098
ABSTRACT:
For laterally aligning a fabric web edge during sewing with a sewing machine (4, 6), a guide means (2) is used which can be moved perpendicularly to the conveying direction of the fabric web (S) in order to gently press the fabric web against an abutment (16) which is designed, for instance, as a driven roller and is capable of producing a variable counter-pressure. The guide means contains a ball chain (18) guided about two chain wheels. The balls are supported on a plastic rope so as to be able to rotate together with the fabric web being conveyed. By rotating the chain wheels, the lower length of the chain (18) and, thus, the fabric web (S) can be shifted laterally so as to obtain the desired aligning effect.
REFERENCES:
patent: 4109596 (1978-08-01), Blessing
patent: 4191118 (1980-03-01), Blessing
patent: 4200049 (1980-04-01), Blessing
patent: 4434729 (1984-03-01), Davidson
patent: 4813364 (1989-03-01), Boser
patent: 4836119 (1989-06-01), Siraco et al.
Izaguirre Ismael
Schroeder Werner H.
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