Excavating – Railway graders
Patent
1979-05-14
1981-03-03
Eickholt, E. H.
Excavating
Railway graders
172145, 172784, 172785, 172787, 404102, 404108, 404111, 37 4, 37DIG3, 37DIG19, 280401, 280411R, 280421, 280422, 280477, 180140, 414489, 414502, 414503, E02F 522, E01C 1906
Patent
active
042532566
ABSTRACT:
An improved reciprocatory self-loading dual-ended earth excavation vehicle pivotally connected to two or more unmanned self-leveling and self-maneuvering telescopic conveyor vehicles, the latter in turn are pivotally connected to a multi-function dual-ended distribution vehicle capable of conveying, spreading, wetting, impacting and grading the earth fill. The above-mentioned articulated vehicles provide the means to excavate, convey and discharge a virtually continuous flow of earth while traveling in a forward or rearward direction. The excavation and telescopic conveyor vehicles are readily adaptable to surface mining of various minerals including coal and oil shale by simply exchanging the above-mentioned distribution vehicle for a pivotally connected boom conveyer vehicle which provides the means for discharging the ore at a mill site or for the loading of long haul ore carriers.
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