VORRICHTUNG ZUM SENKBOHREN UND STAUBFANGEN BEI GEBIRGSLOCHBOHRGERAETEN

VORRICHTUNG ZUM SENKBOHREN UND STAUBFANGEN BEI GEBIRGSLOCHBOHRGERAETEN

A combined device for reaming and collecting dust for use with a drilling apparatus makes it possible to produce a flared mouth for the drilled hole, in particular for subsequently facilitating the insertion of an anchor bolt. The device includes a reamer, through which the drilling bit of the appar...

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1. Verfasser: JEAN PERRAUD,RAYMOND
Format: Patent
Sprache:ger
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
SHAFTS
TUNNELS
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creator JEAN PERRAUD,RAYMOND
description A combined device for reaming and collecting dust for use with a drilling apparatus makes it possible to produce a flared mouth for the drilled hole, in particular for subsequently facilitating the insertion of an anchor bolt. The device includes a reamer, through which the drilling bit of the apparatus passes axially, and which is integral with a sleeve through which the bit also axially passes and which is coupled to a hydraulic speed-reducing motor. The inner diameters of the sleeve and of the reamer are greater than the diameter of the bit, in order to provide an annular passage for the evacuation of dust. A container for collecting dust and provided with a guide for the drilling bit is disposed on the side of the driving sleeve opposite the reamer.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
SHAFTS
TUNNELS
title VORRICHTUNG ZUM SENKBOHREN UND STAUBFANGEN BEI GEBIRGSLOCHBOHRGERAETEN
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