Sewing machine

Details Sewing machine Sewing machine

1977-11-17

1980-01-29

Reynolds, Wm. Carter

Sewing

Stitch forming

Revolving-hook type

112184, 112231, D05B 5730, D05B 6100

Patent

active

041855736

ABSTRACT:
A sewing machine having a semi-rotating looper assembly, characterized in that the driving mechanism for said semi-rotating looper assembly comprises a motor, a rotatable link, and a sector gear formed on said rotatable link. Said sewing machine further comprises a cloth-feeding mechanism including cloth-feeding teeth, a spring for biasing said cloth-feeding teeth in one direction and to a level below the plane of the cloth to be fed, and a swingable lever connected to said link. Said semi-rotating looper assembly includes a rotating looper holder opening in the table surface of the machine body, a slit formed in the inner peripheral wall of said rotating looper holder, and a rotating looper disposed in said rotating looper holder and having a bobbin holding portion and an edge. Said looper assembly further includes a driving mechanism for causing a partial reciprocatory rotary motion of said rotating looper within said rotating looper holder. Said looper assembly also includes an entanglement preventing member mounted on the machine body and having an end extending through said slit into said rotating looper holder for a resilient contact with the outer peripheral wall of said rotating looper.

REFERENCES:
patent: 10125 (1882-05-01), Hurtu et al.
patent: 328089 (1885-10-01), Valentine
patent: 432957 (1890-07-01), Squire
patent: 2299524 (1942-10-01), Chason
patent: 3390653 (1968-07-01), Ketterer

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