Plastic article or earthenware shaping or treating: apparatus – Vibrating means including mechanical movement or power means
Patent
1984-02-17
1985-10-01
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Vibrating means including mechanical movement or power means
404 98, 404114, 404119, 425 63, 425218, E01C 1938
Patent
active
045443467
ABSTRACT:
The present invention simultaneously finishes the surface of an area of plastic concrete and forms a curb along one or both sides of the area as the apparatus is translated along the length of the area. The apparatus includes a vibratory concrete finishing machine such as a triangular truss concrete screed having first and second sides and spaced apart front and rear screed blades. The two sides of the finishing machine are supported by roller support units which engage each of the spaced apart forms. Coupling means connects the first roller support unit to the first side of the finishing machine, adjusts the lateral spacing between the first side of the finishing machine and the form, and adjusts the elevation of the screed blades with respect to the form. A curb form is coupled to the finishing machine between the form and the first side of the finishing machine.
REFERENCES:
patent: 3224348 (1965-12-01), Maginniss
patent: 3377933 (1968-04-01), Dale
patent: 3412658 (1968-11-01), Griffin
patent: 3475800 (1969-11-01), Jones
patent: 4314773 (1982-02-01), Allen
patent: 4316715 (1982-02-01), Allen
patent: 4397580 (1983-08-01), Morrisson
patent: 4397626 (1983-08-01), Morrisson
patent: 4412803 (1983-11-01), Allen
Allen Engineering Corporation
Hoag Willard E.
Housel James C.
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