G - Physics – 01 – B
Patent
G - Physics
01
B
340/123.6
G01B 7/04 (2006.01) B66B 1/34 (2006.01) B66B 5/06 (2006.01) G01D 5/14 (2006.01)
Patent
CA 1107833
CASE 3822/CAN ABSTRACT Problems associated with the exact determination of position of a mine cage are overcome. The sensors detect a magnetic striping on a rope arranged in a mine shaft and derive electrical signals indicative of the striping and thus the position of the mine cage. The signals are protected from common channel interference by circuitry and the position and direction of the cage are determined by a logic unit. Error detection means detect circuit faults which could give rise to misleading positional data. - 1 -
312337
Coal Industry (patents) Limited
Fetherstonhaugh & Co.
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