Precipitating scale forming constituents from water by heat

Claim 2

IN A SYSTEM FOR TREATING WATER FOR REMOVAL OF SCALE FORMING CONSTITUENTS, THE COMBINATION OF A SEPARATING TANK, A VERTICAL CONDUIT DEFINING A HEATING ZONE DISPOSED WITHIN SAID TANK, A WATER DISCHARGE PIPE CONNECTED TO SAID TANK AND OPENING WITHIN THE TANK AT A POINT WELL ABOVE THE BOTTOM, A NOZZLE FOR DELIVERING STEAM INTO THE LOWER END OF SAID VERTICAL CONDUIT TO HEAT WATER THEREIN AND TO PRODUCE HIGH TURBULENCE AND VIBRATIONS THEREIN, A WATER SUPPLY PIPE LEADING INTO SAID TANK, A HEAT EXCHANGER INTERPOSED IN SAID WATER SUPPLY LINE, A FILTER DEVICE INTERPOSED IN THE WATER SUPPLY PIPE INTERMEDIATE THE HEAT EXCHANGER AND THE SEPARATING TANK, A HOT WATER LINE FOR CONDUCTING HOT TREATED WATER TO SAID HEAT EXCHANGER TO PREHEAT SAID WATER DELIVERED TO SAID TANK, A FILTER DEVICE INTERPOSED IN SAID DISCHARGE PIPE, A STEAM-SUPPLY LINE CONNECTED TO SAID NOZZLE AND INCLUDING A VALVE, AND MEANS INCLUDING A FLOAT- CONTROLLED MECHANISM RESPONSIVE TO THE WATER LEVEL IN SAID TANK FOR CONTROLLING SAID VALVE AND TO REGULATE THE SUPPLY OF STEAM TO THE SAID NOZZLE IN ACCORDANCE WITH THE VOLUME OF THE FLOW OF WATER TO THE TANK AND THE TEMPERATURE AND PRESSURE THEREIN.