Rotary looptaker and bobbin case with magnetic repulsive force t

Details Rotary looptaker and bobbin case with magnetic repulsive force t Rotary looptaker and bobbin case with magnetic repulsive force t

1985-03-28

1987-06-30

Reynolds, Wm. Carter

Sewing

Elements

Revolving hooks

D05B 5708, D05B 5726

Patent

active

046761780

ABSTRACT:
A rotary looptaker having an annular groove formed therein and a bobbin case having a track rib formed thereon, wherein the looptaker is driven for rotation with the annular rib fitted into the annular groove and permanent magnetic pieces are respectively provided in the annular rib and the annular groove so that magnetic repulsive forces are produced therebetween.

REFERENCES:
patent: 2209906 (1940-07-01), Rubel
patent: 2343877 (1944-03-01), Zonis
patent: 2608945 (1952-09-01), Hagquist
patent: 2690726 (1954-10-01), Wener
patent: 2907165 (1959-10-01), Adams et al.
patent: 2932152 (1960-04-01), Jackson
patent: 3122876 (1964-03-01), Matsui
patent: 3146744 (1961-09-01), Bradshaw
patent: 3851448 (1974-12-01), Sano et al.

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