Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1975-11-10
1976-08-24
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37141R, 37DIG3, 214145, E02F 376
Patent
active
039758443
ABSTRACT:
In combination with a normally forwardly opening excavating bucket with a lower, forwardly projecting laterally extending earth engaging lip, an elongate bar normally engaged adjacent the lip and having a plurality of laterally spaced forwardly projecting digger teeth, elevator arms fixed to and normally extending rearwardly from the ends of the bar laterally outward of the bucket, a transversely extending shaft rearward of the bucket and fixed to the rear ends of the arms, bearing means on the bucket to shiftably and rotatably support the shaft, a lever arm projecting radially from the axis of the shaft and a cylinder and ram unit fixed to and extending between the bucket and the shaft and operable to shift the shaft and the bar forwardly and rearwardly out of and into adjacent engagement with the lip and to rotate the shaft and pivot the bar substantially vertically into and out of normal engagement with said lip.
REFERENCES:
patent: 3014606 (1961-12-01), Kampert et al.
patent: 3033395 (1962-05-01), Lowery
patent: 3057496 (1962-10-01), Garske
patent: 3065870 (1962-11-01), Granryd et al.
patent: 3243067 (1966-03-01), Artman
patent: 3738030 (1973-06-01), Olinger
patent: 3795070 (1974-03-01), Bronson et al.
patent: 3854607 (1974-12-01), Kamner
patent: 3854608 (1974-12-01), Arnold
patent: 3915501 (1975-10-01), Cobb et al.
Eickholt E. H.
Maxwell Georges A.
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