Excavating – Railway graders – Side former
Patent
1979-11-23
1982-11-16
Shapiro, Paul E.
Excavating
Railway graders
Side former
37110, 371425, 172 33, 172 63, E02F 502, E02F 522
Patent
active
043589057
ABSTRACT:
This invention is directed to a unique method of moving earth and an earth moving device which can be attached at the front end of an endless track vehicle and used for moving earth into a ditch or excavation. The apparatus for moving earth comprises: (a) earth contacting blade; (b) an endless track mounted in association with the earth contacting blade for moving the earth in a direction lateral to the direction of travel of the earth contacting blade; and (c) a vehicle for moving blade (a) and track (b) above in co-operation with one another. The method of moving earth comprises advancing an earth moving blade through a continuous ridge of earth in a manner such that the speed of advance of the advancing earth moving blade is synchronized with the speed of movement of a laterally travelling earth moving track so that substantially all of the earth is moved laterally in the direction of travel of the laterally travelling earth moving track.
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patent: 3119193 (1964-01-01), Herschberger
patent: 3362092 (1968-01-01), Speicher et al.
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