Throat plate for a double lockstitch automatic sewing arrangemen

Details Throat plate for a double lockstitch automatic sewing arrangemen Throat plate for a double lockstitch automatic sewing arrangemen

1983-03-09

1985-03-05

Reynolds, Wm. Carter

Sewing

Special machines

Darning

112260, D05B 2100, D05B 7312

Patent

active

045023980

ABSTRACT:
A throat plate of an automatic sewing arrangement producing a double lockstitch and having a feeding device for generating a feed motion in any direction in a sewing plane as a relative movement between the needle and a workpiece. The throat plate is formed at the surface turned towards the workpiece with a closed needle aperture area, and is formed at the surface turned away from the workpiece with an opened needle aperture area profiled with a thread guiding edge affecting the hook thread leaving the double lockstitch hook. The thread guiding edge controls the position of the hook thread with respect to the needle so as to avoid a double interlocked stitch formation.

REFERENCES:
patent: 944740 (1909-12-01), Madison
patent: 1358567 (1920-11-01), Moffatt et al.
patent: 3125049 (1964-03-01), Redman
patent: 3313259 (1967-04-01), Daniel et al.
patent: 3808991 (1974-05-01), Schaefer, Jr.
patent: 4088085 (1978-05-01), Hager

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