Sewing machine base

Details Sewing machine base Sewing machine base

1976-08-20

1977-12-27

Krizmanich, George H.

Sewing

Elements

Frames

D05B 7306

Patent

active

040648184

ABSTRACT:
A sewing machine having a U-shaped base one portion of which defines a unitary tubular element within which the lower stitching instrumentalities and the driving members therefor are housed. The unitary tubular element is formed so as to prevent any possible leakage of lubricant therefrom and includes guides for the feed dog support bars which are externally accessible for the purpose of locating the support bars in their most advantageous operating position as well as to permit simplified replacement thereof.

REFERENCES:
patent: 2158562 (1939-05-01), Hacklander et al.
patent: 2219211 (1940-10-01), Smith et al.
patent: 2623484 (1952-12-01), Zeier
patent: 3347196 (1967-10-01), Leslie
patent: 3363593 (1968-01-01), Ciecior et al.

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