Displaceable working apparatus with extensible boom

Driving shield

Earth working machine having independent tools and roof engaging

Equipment for laying a layer of elongate material

Equipment for laying elongate material

Equipment for laying elongate material

Excavator for use in a tunneling shield

Head intake for tunnelling machine

Hook plough apparatus for longwall mining

Longwall mining system

Machine for making underground galleries

Main-ancillary tunnel excavator

Method for boring and placing bolts for imbedding adhesively...

Mine roof bolting apparatus and method of using the same

Mining apparatus and method

Mining machine with multiple propulsion members

Mining system with drilling, loading, conveyor, and support

Oil tank arrangement for mining apparatus and roof bolting...

Roadheading or mining machine with roof bolt drilling and...

Roadheading or mining machine with roof bolt drilling and...