Rotary hook for sewing machine

Details Rotary hook for sewing machine Rotary hook for sewing machine

1979-07-02

1981-08-18

Reynolds, Wm. Carter

Sewing

Stitch forming

Revolving-hook type

112228, D05B 5708

Patent

active

042840171

ABSTRACT:
A rotary hook and bobbin assembly for a lock-stitch sewing machine. The bobbin has no case but has a flat end plate and a convexly curved end plate. The bobbin holder has a post with a means for locking the bobbin and a relatively wide undergroove in its wall for adjusting tension.

REFERENCES:
patent: 38447 (1863-05-01), Grote
patent: 1966432 (1934-07-01), Allen et al.
patent: 2690726 (1954-10-01), Wener
patent: 2830550 (1958-04-01), Attwood et al.
patent: 3476068 (1969-11-01), Preston
patent: 4009670 (1977-03-01), Mitchell

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