Sewing machine with multidirectional upper and lower feed device

Details Sewing machine with multidirectional upper and lower feed device Sewing machine with multidirectional upper and lower feed device

1987-09-15

1989-07-18

Falik, Andrew M.

Sewing

Stitch forming

Feeding work material

112308, 112320, 112322, D05B 2706, D05B 2708, D05B 2716

Patent

active

048482544

ABSTRACT:
A sewing machine is provided with a upper and a lower feed device with which a workpiece consisting of several plies can, when making arched and/or corner type seams, be transported in always constant position of orientation without mutual displacement of the plies. For this purpose the feed direction of both feed devices can be varied either by changing their direction of action or by geometric addition of at least two motion components.

REFERENCES:
patent: 3055325 (1962-09-01), Adler
patent: 3980032 (1976-09-01), Kleinschmidt et al.
patent: 4226199 (1980-10-01), Adams
patent: 4509443 (1985-04-01), Martell et al.
patent: 4682533 (1987-07-01), Bachmann et al.

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