Method and apparatus for determination of ore sampling location
Abstract
Abstract A SENSING DEVICE WHICH DEFINES THE TERMINAL POSITION AND INCLINATION OF A CURVED PROSPECT HOLE DRILLED FROM A PASSAGE IN A MINE BY INDICATING THE DISTANCE, SLOPE DEFLECTION, FROM INITIAL POSITION AND AZIMUTH, OF PROGRESSIVE POINTS ALONG THE HOLE. AN IN-HOLE SENSOR IS PROVIDED WITH A PLURALITY OF POTENTIOMETERS MOUNTED ON MUTUALLY PERPENDICULAR AXES TO WHICH ARE ATTACHED PENDULUMS. ANGULAR CHANGES IN INCLINATION AND ATTITUDE OF THE SENSOR WITH REFERENCE TO THE PENDULUM''S VERTICAL POSITION CAUSED RELATED ELECTRICAL OUTPUTS FROM THE POTENTIOMETERS WHICH CAN BE READ AS DEGREES BY A READOUT INSTRUMENT. OTHER POTENTIOMETERS THEREIN HAVE THEIR ELECTRICAL OUTPUTS ALTERED TO AN EXTEND PROPORTIONAL TO THE DEFLECTION OF THE HOLE. ACCORDING TO THE METHOD OF THE INVENTION CROSS-SECTION SAMPLES MAY BE TAKEN FROM THE GROUND SURROUNDING AND IN THE PLANE OF MINE WORKINGS BY DRILLING CURVED PROSPECT HOLES FROM WITHIN EXISTING MINE OPENINGS. D R A W I N G
Inventors
- 👤 H Sears
Bibliographic Details
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