Brushing – scrubbing – and general cleaning – Implements – Mason's trowel or float
Patent
1978-01-13
1979-05-22
Blum, Daniel
Brushing, scrubbing, and general cleaning
Implements
Mason's trowel or float
152353, 152357, B05C 1710, E01C 1944
Patent
active
041551419
ABSTRACT:
A tool for simultaneously finish edging the wet cement surfaces abuting both sides of divider strips which separate the wet slabs is disclosed. The tool has a pair of blades adjustable to accommodate a variety of divider thicknesses. One of the adjustable blades is spring loaded and floats so as to compensate for changes in the width of the divider as the tool moves along its length. A blade may be removed if only one edge is to be finished.
REFERENCES:
patent: 997577 (1911-07-01), Nelk
patent: 1273060 (1918-07-01), Hoff
patent: 1362900 (1920-12-01), Severns
patent: 1585571 (1926-05-01), Swanson
patent: 1773431 (1930-08-01), Mosel
patent: 1966489 (1934-07-01), Edge
patent: 2108470 (1938-02-01), Boulton
patent: 2226634 (1940-12-01), Sabin
patent: 2420062 (1947-05-01), Ames
patent: 2674116 (1954-04-01), Erp
patent: 3806268 (1974-04-01), Francis
Blum Daniel
Swanson Francis
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