Road structure – process – or apparatus – Apparatus – Material distribution means
Patent
1980-04-28
1982-04-06
Byers, Jr., Nile C.
Road structure, process, or apparatus
Apparatus
Material distribution means
180306, E01C 1912
Patent
active
043233210
ABSTRACT:
Track driven machines useful in slip form and other road paving operations embodying a support frame, with hollow frame members serving as cooling reservoirs for hydraulic fluid, supported by hydraulic cylinders on a pair of power driven, endless tracks. The frame is maintained in a pre-oriented plane as the machine moves along terrain by a hydraulic fluid control system operating cylinders in response to torsion bar-registered twist of the frame, string-line feeler means and a level controller. Two winches driven by respective hydraulic motors are mounted ahead of each track. Cables wound thereon may be attached to stationary objects to provide auxiliary forward drive(s) for each track, or in emergencies as the replacement drive for a disabled track.
REFERENCES:
patent: 1265499 (1918-05-01), Parrish
patent: 1447999 (1932-03-01), Rathmell
patent: 1495901 (1924-05-01), French
patent: 3250340 (1966-05-01), Roberson
patent: 3318208 (1967-05-01), Durston
patent: 3377933 (1968-04-01), Dale
patent: 3435740 (1969-04-01), McGall
patent: 3477354 (1969-11-01), Rink
patent: 3905715 (1975-09-01), Dale
patent: 4249327 (1981-02-01), Allen
Byers Jr. Nile C.
Pav-Saver Mfg. Co.
Thompson Matthew C.
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