Method and device for monitoring and simulating operation of blending apparatus

Claim 1

IN A BLENDING SYSTEM, THE COMBINATION COMPRISING: A FIRST CONDUIT HAVING A FLOW METER INCLUDING A SIGNAL EMITTER WHICH EMITS A SERIES OF PULSE SIGNALS, THE NUMBER OF SAID SIGNALS BEING DIRECTLY PROPORTIONAL TO THE VOLUME OF A VARIABLE FLOW OF A PRINCIPAL STREAM THERETHROUGH WITH EACH SIGNAL CORRESPONDING TO A PREDETERMINED FIXED QUANTITY OF SAID PRINCIPAL STREAM; A SECOND CONDUIT FOR AN ADDITIVE STREAM MERGING WITH SAID FIRST CONDUIT, SAID SECOND CONDUIT HAVING FLOW CONTROL MEANS INCLUDING A FLOW CONTROLLER WHICH IS MOVABLE BETWEEN OPEN AND CLOSED POSITIONS TO PERMIT INTERMITTENT FLOW OF SAID ADDITIVE STREAM INTO SAID PRINCIPAL STREAM AND AN OPERATOR FOR MOVING SAID FLOW CONTROLLER BETWEEN SAID OPEN AND CLOSED POSITIONS, SAID FLOW CONTROL MEANS FURTHER INCLUDING MEANS RESPONSIVE TO A PREDETERMINED NUMBER OF SAID SIGNALS FOR CAUSING SAID OPERATOR TO MOVE SAID CONTROLLER TO AN OPEN POSITION FOR A PREDETERMINED TIME AND THEREAFTER MOVE SAID CONTROLLER TO A CLOSED POSITION FOR EACH SEQUENCE OF SAID PREDETERMINED NUMBER OF SIGNALS; AND A MONITORING DEVICE INCLUDING AN ACCUMULATOR OPERATIVELY CONNECTED TO SAID FLOW METER FOR COUNTING THE NUMBER OF SAID SIGNALS TO MEASURE THE INDICATED QUANTITY OF FLOW TO SAID PRINCIPAL STREAM, AND A CUMULATING METER CONNECTED TO SAID FLOW CONTROL MEANS TO MEASURE THE INDICATED QUANTITY OF SAID ADDITIVE STREAM.