MINERAL MINING MACHINE

A mineral mining machine of the type having a boom-mounted cutter assembly carried by a mobile base unit is provided with a face support structure which is pivotally mounted on the boom. Fluid operable rams are provided for moving the structure between a stowed position lying adjacent the boom and a...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	J.H. HODGKINSON
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING MINING OR QUARRYING SHAFTS TUNNELS
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