Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1980-07-21
1982-02-16
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37141R, 172719, E02F 300
Patent
active
043153755
ABSTRACT:
An improved earth moving bucket which includes a plurality of hemispherical, wear-resistant members bonded directly to the undersurface of the bottom wall of the bucket. The outer, earth-contacting, sidewalls of the bucket may also be provided with hemispherical members. The hemispherical members have a hardness at least as great but no more than 95 units of hardness on the Brinell scale greater than the walls to which they are attached. The hemispherical members are preferably placed on the walls in a staggered row arrangement wherein adjacent hemispherical members are at no greater distance from one another than the diameter of the largest of adjacent members.
REFERENCES:
patent: 203042 (1878-04-01), Hill
patent: 2861908 (1958-11-01), Mickelson et al.
patent: 3970445 (1976-07-01), Gale et al.
patent: 4129952 (1978-12-01), Olson
"Stringer Beads Increase Bucket Life", Excavating Engineer, Apr. 1945, p. 197.
"Proven Hard Facing Methods", Construction Methods, Oct. 1962, p. 106.
Eickholt E. H.
Horton Paul F.
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