Apparatus for setting a workpiece on a zipper sewing machine

Details Apparatus for setting a workpiece on a zipper sewing machine Apparatus for setting a workpiece on a zipper sewing machine

1988-08-30

1989-07-04

Nerbun, Peter

Sewing

Special machines

Article attaching

11212112, 1122652, D05B 312

Patent

active

048439843

ABSTRACT:
An alignment apparatus for setting a workpiece on a zipper sewing machine including a workpiece presser arm having surface projections which contact with internal micro-switches of a ring-like side plate which receives and faces the workpiece presser unit. The presence or absence of the surface projections in relation to the micro-switches creates variations in signals which are effective to select the required sewing pattern.

REFERENCES:
patent: 3919942 (1975-11-01), Galya et al.
patent: 4416208 (1983-11-01), Nufer
patent: 4497270 (1985-02-01), Boser
patent: 4648335 (1987-03-01), Hiramatsu et al.

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