Winch apparatus for vibrating concrete screed

Details Winch apparatus for vibrating concrete screed Winch apparatus for vibrating concrete screed

1981-01-26

1982-06-22

Byers, Jr., Nile C.

Road structure, process, or apparatus

Apparatus

Means to agitate material

404119, 425456, E01C 1938, E01C 1940

Patent

active

043359760

ABSTRACT:
A vibrating concrete screed having a motor driven vibrating shaft in an elongated frame mounts at each end of a single or interconnected plural frames a detachable winching unit driven by the shaft through a fluid motor. The screed may be winched automatically, at varying angles, at different speeds at each end and with the winching units performing a screeding function.

REFERENCES:
patent: 2556503 (1951-06-01), Nelson
patent: 3377933 (1968-04-01), Dale
patent: 3412658 (1968-11-01), Griffin
patent: 3435740 (1969-04-01), McGall
patent: 4030873 (1977-06-01), Morrison
patent: 4132492 (1979-01-01), Jenkins
patent: 4213749 (1980-07-01), Morrison
patent: 4249327 (1981-02-01), Allen
patent: 4261694 (1981-04-01), Morrison

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