Apparatus for Discovering and Determining Electrically the Location of Veins of Ore or Mineral

Apparatus for Discovering and Determining Electrically the Location of Veins of Ore or Mineral

129,621. Lundberg, H. T. F., and Nathorst, H. J. H. July 8, 1918, [Convention date]. Locating conductors.-A vein of ore or mineral, shown by the shaded area, is located by tracing the equipotential lines due to current, preferably alternating, flowing through the earth between two long electrodes A&...

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Bibliographische Detailangaben
Hauptverfasser: HANS TORKEL FREDRIK LUNDBERG, HARRY JOHAN HJALMAR NATHORST
Format: Patent
Sprache:eng
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Zusammenfassung:129,621. Lundberg, H. T. F., and Nathorst, H. J. H. July 8, 1918, [Convention date]. Locating conductors.-A vein of ore or mineral, shown by the shaded area, is located by tracing the equipotential lines due to current, preferably alternating, flowing through the earth between two long electrodes A', A , which may be straight ropes or wires. The curves are traced by searching-rods connected to a galvanometer, telephone receiver, &c.