Rotary hook for sewing machine

Details Rotary hook for sewing machine Rotary hook for sewing machine

1973-10-24

1976-03-16

Guest, Alfred R.

Sewing

Elements

Revolving hooks

D05B 5714

Patent

active

039438660

ABSTRACT:
The rotary hook of a sewing machine is provided with a beak portion which extends substantially tangentially outwardly away from the circumferential wall of the rotary hook to capture the needle thread loop at new point radially outwardly of the rotary hook thereby allowing for a shorter needle stroke so that the tip of the needle does not penetrate into the bobbin supporting basket.

REFERENCES:
patent: 2557844 (1951-06-01), Schmitt
patent: 2583538 (1952-01-01), Backlin
patent: 2763227 (1956-09-01), Howard
patent: 2817307 (1957-12-01), Kuhar
patent: 3120204 (1964-02-01), Ketterer
patent: 3215105 (1965-11-01), Kuhar
patent: 3343510 (1967-09-01), Attwood et al.
patent: 3437284 (1969-04-01), Philips
patent: 3709174 (1973-01-01), Garry

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