Working equipment for coal seams

The shield components (20) of adjoining removal units (7) supporting with support feet (22) against the lying coal (4) at a space from one another, and the intermediate spaces between the adjacent shield components form the withdrawal apertures for the withdrawal of suspended coal into the withdrawa...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HILKER, ULRICH, 4670 LUENEN, KLEIBOEHMER, FRITZ, 4670 LUENEN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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