Excavating machines for tunneling with template fixed to boom

Details Excavating machines for tunneling with template fixed to boom Excavating machines for tunneling with template fixed to boom

1980-12-29

1983-01-11

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

33174G, E21D 910

Patent

active

043678980

ABSTRACT:
An excavating machine for excavating rock or mineral to extend an underground roadway or tunnel comprises a mobile carriage provided with a support assembly for a pivotally-mounted cutter carrying boom. In addition, the machine comprises an indication mechanism mounted on either the carriage or support assembly and including a cutter-position indicator for indicating the position of the boom-mounted cutter, the cutter position indicator co-operating with a template defining a reduced scale profile of the roadway or tunnel cross-section, the template being mounted for movement with the boom.

REFERENCES:
patent: 4027210 (1977-05-01), Weber
patent: 4033626 (1977-07-01), Dinkelbach

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