Sewing machine

Details Sewing machine Sewing machine

1979-01-17

1982-01-19

Hunter, H. Hampton

Sewing

Stitch forming

Chain or double chain

112315, D05B 106

Patent

active

043111050

ABSTRACT:
An actuating mechanism is proposed for the hook and feed dog in a portable sewing machine of the type employed for sewing bags of jute, paper, and the like. In the proposed mechanism, a single cam determines both the compound movement of the hook, which is spring loaded against the cam and provided with at least one ball for reducing the frictional resistance, and of the feed dog by means of a connecting rod journalled at one end to a vertically adjustable support such as to allow the length of the seam stitch to be varied.

REFERENCES:
patent: 924903 (1909-06-01), Hemleb
patent: 3952674 (1976-04-01), Hirayama
patent: 4022140 (1977-05-01), Lienemann

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