Excavating – Railway graders – Side former
Patent
1985-09-20
1987-09-08
Eickholt, E. H.
Excavating
Railway graders
Side former
37DIG16, E02F 502
Patent
active
046914552
ABSTRACT:
This invention relates to an improved trenching bucket for use with trenching equipment such as backhoes, wherein the side plates of the bucket are adjustable so that trenches can be formed with walls at various slopes.
REFERENCES:
patent: 2602410 (1952-07-01), Vaughn
patent: 3000120 (1961-09-01), Larue et al.
patent: 3681863 (1972-08-01), Sointsev et al.
patent: 3792539 (1974-02-01), Clark
patent: 3986280 (1976-09-01), Johnson
patent: 4432672 (1984-02-01), Bruderle et al.
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