Sewing machine cabinet with power lift

Details Sewing machine cabinet with power lift Sewing machine cabinet with power lift

1982-09-20

1988-01-05

Falk, Joseph

Supports: cabinet structure

Disappearing-instrument type

312312, A47B 4600

Patent

active

047172126

ABSTRACT:
A sewing machine cabinet has a power lift operable by a rack and pinion type of mechanism whose pinion is driven by a reversible electric motor which preferably has incorporated therein braking means and speed reduction gearing. The rack is provided by one of a pair of guide columns, which is preferably indented along its length in sprocket formation. The pinion is preferably a sprocket wheel meshing with the sprocket indentations.

REFERENCES:
patent: 7224 (1850-03-01), Searle
patent: 2679283 (1954-05-01), Mahone
patent: 3215469 (1965-11-01), Wamsley
patent: 3993008 (1976-11-01), Parsons
patent: 4254928 (1981-03-01), Huempfner

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