Water purity metering systems

Claim 1

APPARATUS FOR ENSURING THE PURITY OF A WATER DISILLATE, COMPRISING A DISTILLER HAVING A FEED CONDUIT AND AN OUTPUT CONDUIT, A FIRST SALINITY CELL LOCATED IN SAID FEED CONDUIT, A SECOND SALINITY CELL AND A TEMPERATURE SENSOR LOCATED IN SAID OUTPUT CONDUIT, DATA CONVERTING MEANS INCLUDING A SOURCE OF A.C. POTENTIAL CONNECTED TO BOTH THE SAID SALINITY CELLS, FIRST AND SECOND POTENTIOMETERS RESPECTIVELY CONNECTED IN SERIES WITH SAID FIRST AND SECOND CELLS, FIRST AND SECOND TRANSFORMERS HAVING PRIMARY WINDINGS RESPECTIVELY CONNECTED ACROSS SAID FIRST AND SECOND POTENTIOMETERS, AND FIRST AND SECOND THYRATRONS HAVING THEIR GRIDS RESPECTIVELY CONNECTED TO THE SECONDARY WINDINGS OF SAID FIRST AND SECOND TRANSFORMERS WITH THE SECONDARY WINDING OF SAID FIRST TRANSFORMER REVERSED SO AS TO YIELD ELECTRICAL SIGNALS INDICATING DECREASING AND INCREASING SALINITY RESPECTIVELY FOR SAID FIRST AND SECOND CELLS, AND MEANS OPERATIVELY CONNECTED TO SAID DATA COVERTING MEANS AND TEMPERATURE SENSOR FOR DUMPING THE DISTILLER PRODUCT WATER FROM SAID OUTPUT CONDUIT WHEN THE PRODUCT WATER SALINITY EXCEEDS A FIRST PRESET VALUE AND ALSO WHEN BOTH THE FEED WATER SALINITY IS BELOW A SECOND PRESET VALUE AND THE PRODUCT WATER TEMPERATURE IS BELOW A PRESET VALUE, SAID MEANS FOR DUMPING INCLUDING A DUMPING RELAY CONNECTED IN THE PLATE CIRCUITS OF BOTH SAID THYRATRONS, AND A SWITCH OPERATED BY SAID TEMPERATURE SENSOR IN SERIES WITH SAID DUMPING RELAY AND THE PLATE OF SAID FIRST THYRATRON.