Half-turn hook with loop positioning surfaces

Details Half-turn hook with loop positioning surfaces Half-turn hook with loop positioning surfaces

1994-08-19

1996-02-20

Crowder, C. D.

Sewing

Elements

Revolving hooks

112181, D05B 5714

Patent

active

054920728

ABSTRACT:
A half-turn hook for positioning a needle thread loop between a needle and a bobbin at the time of stitching, the half-turn hook comprises a shuttle race body, a rotatable shuttle body, a bobbin and a shuttle race ring. The shuttle race body has a sliding surface on which a needle thread is slid in the beginning of stitching. The shuttle race ring has a cutout formed in its upper portion. In the half-hook, the surface where the shuttle body abuts against the shuttle race body and the end into which the rotating shuttle digs, in the cutout of the shuttle body race ring, is located closer to the rotating shuttle body than the sliding surface of the shuttle race body.

REFERENCES:
patent: 1786944 (1930-12-01), Hemleb
patent: 2332964 (1943-10-01), Colegrove
patent: 2873706 (1959-02-01), Tateishi
patent: 2980044 (1961-04-01), Parry
patent: 3115110 (1963-12-01), Ketterer
patent: 3145673 (1964-08-01), Meloy, Jr.
patent: 3933106 (1976-01-01), Murray

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