Lubricant sealing device for sewing machines

Details Lubricant sealing device for sewing machines Lubricant sealing device for sewing machines

1980-07-24

1981-08-18

Hunter, H. Hampton

Sewing

Elements

Lubricating

277177, D05B 7100

Patent

active

042840198

ABSTRACT:
A lubricant sealing element for the slide members which actuate the feed dogs in a sewing machine fabricated from a resilient wear resistant material and having lubricant scraping surfaces formed by spaced walls defining an opening conforming in size to the cross-sectional configuration of the slide members and through which the latter extend. The sealing element is mounted for sliding movement restricted to the alternate vertical movement of the slide members and the spaced walls are of a thickness approximately one third the thickness of the remainder of said element which permits them to yield first in one direction and then the other with the alternate horizontal movement of the slide members.

REFERENCES:
patent: 3418955 (1968-12-01), Attwood et al.
patent: 3785310 (1974-01-01), Marforio
patent: 4075960 (1978-02-01), Klundt

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