Excavating machines

Details Excavating machines Excavating machines

1978-09-08

1980-10-21

Pate, III, William F.

Mining or in situ disintegration of hard material

Processes

With material-handling

E21C 4100

Patent

active

042290422

ABSTRACT:
The excavating machine has a cutter carrying boom carried by a boom support member which can be swung about an axis extending in the direction of the roadway. The machine includes a cutter unit and a stay unit each of which is releasably anchorable in the roadway and each of which can be advanced relative to the other unit.

REFERENCES:
patent: 2327928 (1943-08-01), Osgood
patent: 3498675 (1970-03-01), Kampf-Emden et al.

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