Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1987-06-22
1988-12-20
Burr, Edgar S.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37135, E02F 348
Patent
active
047917385
ABSTRACT:
The invention relates to a dragline bucket wherein the center of gravity is along a line making an angle of at least 90.degree. with a line from the tooth tip to the horizontal pivot axis of the dragline hitch. Also disclosed is a movable hitch.
REFERENCES:
patent: 963561 (1910-07-01), Hopkins
patent: 1050838 (1913-01-01), King et al.
patent: 1951909 (1934-03-01), Hayward
patent: 2168643 (1939-08-01), Berner
patent: 2286765 (1942-06-01), Settersten
patent: 2525528 (1950-10-01), Deal
patent: 3112572 (1963-12-01), Larsen
Burr Edgar S.
Cohen Moshe J.
ESCO Corporation
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