Magnetic actuated sewing machine zigzag mechanism

Details Magnetic actuated sewing machine zigzag mechanism Magnetic actuated sewing machine zigzag mechanism

1975-02-06

1976-05-11

Hunter, H. Hampton

Sewing

Work manipulating

Guides

112221, D05B 302, D05B 5514

Patent

active

039555160

ABSTRACT:
There is disclosed a sewing machine having a needle bar gate vibrating mechanism whereby the sewing machine is adapted to produce zigzag stitches. The needle bar gate vibrating motion is obtained through the use of two spaced apart circular magnets mounted on a rotating shaft of the sewing machine and having disposed between them a pair of bar magnets operatively connected to the needle bar gate, the polarization of the magnets being such that one of the circular magnets exerts attractive force on the bar magnets while the other circular magnet exerts repulsive forces. As the shaft rotates these forces reverse, resulting in the imparting of vibratory motion to the needle bar gate.

REFERENCES:
patent: 2756703 (1956-07-01), Perla et al.
patent: 3039323 (1962-06-01), Mori
patent: 3831537 (1974-08-01), Siegel

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