Advance mechanism, preferably for mining machines
Advancing apparatus for a multi-unit mining machine
Advancing apparatus for coal-mining machine in underground mine
Air diversion and dust control system for longwall shearers
Apparatus for controlling the position of a mineral mining machi
Apparatus for controlling the position of a mineral mining machi
Apparatus for controlling the position of a mineral mining machi
Apparatus for controlling the position of a mining machine
Apparatus for controlling the position of a mining machine
Apparatus for controlling water spraying operations in mineral m
Apparatus for drawing the shearers
Apparatus for pivotally positioning a clearing shield for a drum
Apparatus for positioning supply connections into association wi
Apparatus for progessively removing layers of overburden from an
Apparatus for use in under-ground long wall mine workings
Apparatus for use with cutting drums of mineral machines
Apparatus on drum shearer for cutting through safety wall in lon
Appartaus for mounting ancillary equipment
Arrangement for guiding a cutting machine or similar mining mach
Auxiliary device for a mining machine