Thread chain sewing method and device for use in the two-needle

Details Thread chain sewing method and device for use in the two-needle Thread chain sewing method and device for use in the two-needle

1980-06-24

1982-07-13

Nerbun, Peter P.

Sewing

Elements

Frames

112165, D05B 110

Patent

active

043388736

ABSTRACT:
A thread chain sewing method and device for use in the two-needle overlock sewing machine comprising an inner chaining-off finger arranged to be retractable from an advanced position in which it is positioned alongside an outer chaining-off finger. The inner chaining-off finger is retractable in a direction opposite the fabric material feeding direction. The inner chaining-off finger is held in its advanced position during sewing over the fabric as well as during a thread chain forming period after the trailing edge is stitched. Thread chains formed before the start of sewing are wrapped only over the outer chaining-off finger, while thread chains formed after the trailing edge of the material passes are bridged over the inner and outer chaining-off fingers.

REFERENCES:
patent: 3100469 (1963-08-01), Washburn
patent: 4175499 (1979-11-01), Navlyt
patent: 4186676 (1980-02-01), Villa et al.

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