REACTION COUNTERBALANCED EARTH BORING

Earth boring using a machine having a plurality of cutters which are disposed at mechanically balanced positions on a casing co-axial with and rotatable about the center axis of the machine, the output of a motor being divided into two, one output being used to rotate the cutters about their own axe...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	IKEDA N,JA
Format:	Patent
Sprache:	eng
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!