Rotating cutting tool for formation of soil cores - by pull operation - has central shaft for holding cutter and enclosing concentric shell

The cutter is used especially in soils which exert markedly strong suction effect on the soil column to be excavated and in soils which are relatively loose or porous. The cutter has means for compacting the cut soil in order to reduce the suction effect and for facilitating the removal of the mater...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GORDON ATKINS,STANLEY, BYRON BAILIE,STANLEY
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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