Tunnel driving apparatus

Details Tunnel driving apparatus Tunnel driving apparatus

1986-12-15

1988-10-18

Suchfield, George A.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With mine roof-supporting means

405138, E21D 908

Patent

active

047782200

ABSTRACT:
Tunnel driving apparatus includes a full-face cutting machine 2 mounted, preferably vertically and laterally pivotably, in a drive shield 1. The cutting machine is displaceable, by means of feed rams 16, towards a working face. The cylinders 19 of the feed rams are secured to the machine body 3 of the full-face cutting machine, and act as guide shoes for slidably supporting the cutting machine on guide rails 6 fixed to the drive shield.

REFERENCES:
patent: 1766568 (1930-06-01), Updegraff
patent: 3630574 (1971-12-01), Cox et al.
patent: 3695720 (1972-10-01), Bolotin et al.
patent: 3861750 (1975-01-01), Follert et al.
patent: 4474494 (1984-10-01), Stuckmann et al.

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