ANORDNING FOR DRIVNING AV HAL I MARK

A machine for driving holes in the ground comprises a cylindrical housing, a hammer disposed inside the housing, and an air distribution mechanism. Longitudinal recesses and projections are provided on a portion of the outer surface of the housing at its head end section. The diameter of the cylindr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	2)A T KARAVAEV, 7)V I TARASENKO, 6)I I REZNIKOV, 3)V D PLAVSKIKH, 5)N P CHEPURNOI, 1)A D KOSTYLEV, 4)A D TERSKOV
Format:	Patent
Sprache:	swe
Schlagworte:	DREDGING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING
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Beschreibung
Zusammenfassung:	A machine for driving holes in the ground comprises a cylindrical housing, a hammer disposed inside the housing, and an air distribution mechanism. Longitudinal recesses and projections are provided on a portion of the outer surface of the housing at its head end section. The diameter of the cylindrical part of the housing is greater than the diameter of a circle described about the bottoms of the recesses and smaller than the diameter of a circle described about the tops of the projections.