Chlorinating apparatus

Claim 1

IN AN APPARATUS FOR ADMIXING GAEOUS CHLORINE TO A FLUID FLOW IN WHICH APPARATUS THE CHLORINE TO BE ADMIXED IS SUCKED ON BY A MAIN INJECTOR INCLUDED IN THE FLUID FLOW TO BE TREATED FROM A SUPPLY OF CHLORINE UNDER PRESSURE THROUGH A DIAPHRAGM-OPERATED, FLOW-CONTROLLING VACUUM REDUCTION VALVE AND A SETTING VALVE FOR REGULATING THE FLOW OF CHLORINE FED TO THE VACUUM REDUCTION VALVE FOR CONTROL BY THE SAME, CONDUIT MEANS CONNECTING SAID MAIN INJECTOR TO ONE SIDE OF SAID SETTING VALVE, THE OTHER SIDE OF THE SETTING VALVE BEING CONNECTED TO ONE SIDE OF THE DIAPHRAGM OF THE VACUUM REDUCTION VALVE, THE OTHER SIDE OF SAID DIAPRAGM BEING CONNECTED TO THE ATMOSPHERE, AND IN WHICH APPARATUS THE VOLUME OF CHLORINE ADMITTED BY THE VACUUM REDUCTION VALVE TO THE FLUID FLOW IS FURTHER CONTROLLED BY MEANS ASSOCIATED WITH SAID VACUUM REDUCTION VALVE AND RESPONSIVE TO A PRESSURE REDUCTION VALVE INCLUDING A MEASURING DIAPHRAGM RESPONSIVE TO A PRESSURE DROP ACROSS A CONSTRICTION IN A FLUID FLOW WHICH IS PROPORTIONAL TO THE FLOW OF FLUID TO BE TREATED AND CONTROLLING SAID VACUUM REDUCTION VALVE IN ACCORDANCE WITH A CHANGE IN THE VOLUME OF THE FLUID FLOW TO BE TREATED, SAID PRESSURE REDUCTION VALVE ALSO INCLUDING A COMPARING DIAPHRAGM COUPLED IN PARALLEL WITH SAID MEASURING DIAPHRAGM FOR COMPARING THE RESPONSE OF THE MEASURING DIAPHRAGM TO THE PRESSURE DROP ACROSS SAID CONSTRICTION WITH THE CONTROL ACTION OF SAID VACUUM REDUCTION VALVE AS ACTUALLY EFFECTED BY THE MEASURING DIAPHRAGM, AND A DIAPHRAGM-CONTROLLED VACUUMREGULATING MEANS INCLUDED IN THE CONDUIT MEANS CONNECTING SAID MAIN INJECTOR TO SAID SETTING VALVE, ONE SIDE OF THE DIAPHRAGM OF SAID REGULATING MEANS BEING EXPOSED TO THE VACUUM AND THE OTHER SIDE TO THE ATMOSPHERE, ONE SIDE OF SAID COMPARING DIAPHRAGM OF THE PRESSURE REDUCTION VALVE BEING CONNECTED TO THE SIDE OF THE DIAPHRAGM OF THE VACUUM-REGULATING MEANS EXPOSED TO THE VACUUM AND THE OTHER SIDE OF SAID COMPARING DIAPHRAGM BEING CONNECTED TO SAID ONE SIDE OF THE DIAPHRAGM OF THE VACUUM REDUCTION VALVE CONNECTED TO THE OTHER SIDE OF THE SETTING VALVE AND EXPOSED TO THE VACUUM GENERATED BY THE SUCTION OF SAID MAIN INJECTOR.