Dragline hoe, method and apparatus

Details Dragline hoe, method and apparatus Dragline hoe, method and apparatus

1986-09-30

1988-03-22

Crowder, Clifford D.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

37195, 172 266, E02F 348, E02F 360

Patent

active

047319410

ABSTRACT:
Method of excavating overburden from a mineral or coal deposit seam using a low wall winch component, a high wall which component and a hoe. The hoe is attached to the low wall winch component by one or more draglines and the hoe is attached to the high wall winch component by a tail line.
The method includes the steps of:

REFERENCES:
patent: 1283932 (1918-11-01), Slocum
patent: 1646536 (1927-10-01), Housman
patent: 1760840 (1930-05-01), Enard
patent: 1804175 (1931-05-01), Massey
patent: 2013276 (1935-09-01), Luce
patent: 2402314 (1946-06-01), Crane
patent: 2763074 (1956-09-01), Whisler
patent: 2864182 (1958-12-01), Russell
patent: 3445945 (1969-05-01), Howell

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