FORFARANDE OCH ANORDNING FOR INRIKTNING AV EN BORRBOM

Procedure for positioning a rack drill on a drilling arm by means of a turning or swinging movement of the drill or the drilling arm about two at axes at right angle to each other by which the required turning angle for the axes is set up on an indicator. Subsequently the actual turning angle positi...

Full description

Saved in:
Bibliographic Details
Main Authors B HOGSTROM, K E O BYSTROM, N A AGEN, C-G BERGSTROM
Format Patent
LanguageSwedish
Published 22.08.1977
Subjects
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 AccessGet full text

Cover

More Information
Summary:Procedure for positioning a rack drill on a drilling arm by means of a turning or swinging movement of the drill or the drilling arm about two at axes at right angle to each other by which the required turning angle for the axes is set up on an indicator. Subsequently the actual turning angle positions are measured on the axis by a turning indicator which produces a visible indication of the difference between the required and the actual turning angles. Thereafter the drill and the drilling arm are swung about the axis until the required angle and the measured actual angle are equal. The difference in the turning angles is made visible by needle instruments.
Bibliography:Application Number: SE19740016214