Communications: electrical – Systems – Call station
Patent
1975-05-20
1976-03-16
Caldwell, John W.
Communications: electrical
Systems
Call station
324 29, 324 51, G08B 2100
Patent
active
039449955
ABSTRACT:
A device for detecting short-circuit between electrodes in electrolytic cells constituting an electrolytic plant in which a plurality of switch elements turned on and off under control of an external magnetic field are disposed to be vertically movable toward and away from the current collecting end portions of the individual anodes or cathodes in the electrolytic cells. These switch elements are moved downward to detect occurrence of short-circuit between the electrodes in one of the electrolytic cells, and when no short-circuit is detected in this electrolytic cells, the switch elements are automatically conveyed to the detecting position on the next electrolytic cell.
REFERENCES:
patent: 3175150 (1965-03-01), Druylants
patent: 3559199 (1971-01-01), Schafer
patent: 3609525 (1971-09-01), Clingenpeel et al.
patent: 3713020 (1973-01-01), Kohler
patent: 3792457 (1974-02-01), Templeton et al.
patent: 3818325 (1974-06-01), Boshers
Kobayashi Takeshi
Tanaka Yoshiharu
Caldwell John W.
Mitsui Mining & Smelting Co. Ltd.
Myer Daniel
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