Road structure – process – or apparatus – Apparatus – Means to agitate material
Patent
1979-04-13
1981-03-03
Byers, Jr., Nile C.
Road structure, process, or apparatus
Apparatus
Means to agitate material
404118, E01C 1938
Patent
active
042537789
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: 1390479 (1921-09-01), Baker
patent: 1440606 (1923-01-01), Johnston
patent: 2065698 (1936-12-01), Heltzel
patent: 2094910 (1937-10-01), Baily
patent: 3164072 (1965-01-01), Blankenship
patent: 3318208 (1967-05-01), Durston
patent: 3377933 (1968-04-01), Dale
patent: 3412658 (1968-11-01), Griffin
patent: 3767312 (1973-10-01), Raymond
patent: 4030873 (1977-06-01), Morrison
patent: 4132492 (1979-01-01), Jenkins
Byers Jr. Nile C.
Olive B. B.
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