Tunnel or road header

Details Tunnel or road header Tunnel or road header

1984-07-30

1986-10-07

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter shiftable horizontally

299 76, 299 78, E21C 2760

Patent

active

046155651

ABSTRACT:
A tunnel or road header is provided with a caterpillar running gear and a portal frame. A cutter head means engageable with a tunnel face is mounted displaceably on the frame on a horizontal track extending transversely of the longitudinal direction of the roadway. The cutter head means consists of a shearing machine equipped with a carrier arm which is pivotal parallel to the rock face through more than 360.degree. and a shearing drum which is carried by the carrier arm and which rotates about an axis extending toward the rock face and parallel to the roadway floor.

REFERENCES:
patent: 3306663 (1967-02-01), Webster
patent: 3467436 (1969-09-01), Pentith et al.
patent: 4390211 (1983-06-01), Thompson

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