Thread undercut attachment for a multi-needle sewing machine

Details Thread undercut attachment for a multi-needle sewing machine Thread undercut attachment for a multi-needle sewing machine

1987-12-03

1989-12-12

Falik, Andrew M.

Sewing

Elements

Thread cutting, severing or breaking

112166, 112255, 1122621, 112301, D05B 2714, D05B 6502

Patent

active

048860050

ABSTRACT:
A thread undercut attachment for use on multi-needle sewing machines uses a single piston actuated cutting blade which passes through the sewing area beneath the workpiece and above the loopers. To prevent the needles and loopers from becoming unthreaded or to prevent undue lengths of thread after cutting, apparatus is provided for creating a measured amount of slack in the threads leading to the needles and loopers, and then holding the threads firmly to prevent further payout of thread when the workpiece is pulled toward the operator.

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patent: 3139849 (1964-07-01), Cohen et al.
patent: 3359933 (1967-12-01), Bono
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patent: 4303030 (1981-12-01), Palacino et al.
patent: 4421045 (1983-12-01), Portilla
patent: 4459925 (1984-07-01), Miyachi et al.
patent: 4461229 (1984-07-01), Angele et al.
patent: 4558654 (1985-12-01), Schilling et al.

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