Fluid feeding device

Claim 1

AN APPARATUS FOR ADDING, TO A STREAM OF LIQUID, UNIT QUANTITIES OF A SECOND LIQUID IN PRE-DETERMINED RATIO BY VOLUME, SAID APPARATUS COMPRISING CONDUIT MEANS THROUGH WHICH THE STREAM OF LIQUID FLOWS, A METERING CYLINDER LOCATED IN SAID CONDUIT MEANS, SAID METERING CYLINDER HAVING A RECIPROCATING PISTON LOCATED THEREIN, A FIRST VALVE MEANS LOCATED IN SAID CONDUIT MEANS FOR ALTERNATELY SWITCHING THE FLOW FROM ONE SIDE OF THE PISTON TO THE OTHER SIDE THEREOF, POSITIVE-DISPLACEMENT HYDRAULIC MOTOR MEANS FOR ACTUATING SAID FIRST VALVE MEANS TO EFFECT SUCH ALTERNATE SWITCHING, A SECOND VALVE MEANS CONNECTED TO SAID CONDUIT AND CONTROLLING SAID HYDRAULIC MOTOR MEANS, A MECHANICAL OPERATING CONNECTION BETWEEN SAID PISTON AND SAID SECOND VALVE MEANS, SAID CONNECTION BEING OPERABLE AT THE END OF EACH PISTON STROKE TO ACTUATE SAID SECOND VALVE TO A POSITION IN WHICH IT CONNECTS THE MOTOR MEANS TO SHIFT THE FIRST VALVE TO A POSITION CONNECTING THE FLOW FOR ACTUATING THE PISTON THROUGH A SUCCESSIVE STROKE IN THE OPPOSITE DIRECTION, SAID METERING CYLINDER AND SAID MOTOR MEANS BEING CONNECTED IN PARALLEL IN SAID CONDUIT MEANS AND FOR CARRYING ALL FLOW THROUGH SAID CONDUIT MEANS, A PUMP OPERATIVELY CONNECTED TO SAID PISTON, SECOND LIQUID SUPPLY MEANS CONNECTED TO SAID PUMP AND SECOND LIQUID DISCHARGE MEANS CONNECTED FROM SAID PUMP TO SAID CONDUIT MEANS, WHEREBY SUCCESSIVE UNIT QUANTITIES OF SAID SECOND LIQUID ARE DRAWN FROM SAID SUPPLY MEANS AND DISCHARGED INTO SAID CONDUIT MEANS AND SAID FIRST LIQUID IN A DEFINITE RATIO TO THE VOLUME OF FLOW OF THE STREAM OF LIQUID THROUGH SAID CONDUIT MEANS.

Claim 2

AN APPARATUS FOR ADDING, TO A STREAM OF LIQUID, UNIT QUANTITIES OF A SECOND LIQUID IN PRE-DETERMINED RATIO BY VOLUME, SAID APPARATUS COMPRISING CONDUIT MEANS THROUGH WHICH THE STREAM OF LIQUID FLOWS, A METERING CYLINDER LOCATED IN SAID CONDUIT MEANS, SAID METERING CYLINDER HAVING A RECIPROCATING PISTON LOCATED THEREIN, A FIRST VALVE MEANS LOCATED IN SAID CONDUIT MEANS FOR ALTERNATELY SWITCHING THE FLOW FROM ONE SIDE OF THE PISTON TO THE OTHER SIDE THEREOF, POSITIVE-DISPLACEMENT HYDRAULIC MOTOR MEANS FOR ACTUATING SAID FIRST VALVE MEANS TO EFFECT SUCH ALTERNATE SWITCHING, A SECOND VALVE MEANS CONNECTED TO SAID CONDUIT AND CONTROLLING SAID HYDRAULIC MOTOR MEANS, A MECHANICAL OPERATING CONNECTION BETWEEN SAID PISTON AND SAID SECOND VALVE MEANS, SAID CONNECTION BEING OPERABLE AT THE END OF EACH PISTON STROKE TO ACTUATE SAID SECOND VALVE TO A POSITION IN WHICH IT CONNECTS THE MOTOR MEANS TO SHIFT THE FIRST VALVE TO A POSITION CONNECTING THE FLOW FOR ACTUATING THE PISTON THROUGH A SUCCESSIVE STROKE IN THE OPPOSITE DIRECTION, SAID METERING CYLINDER AND SAID MOTOR MEANS BEING CONNECTED IN PARALLEL IN SAID CONDUIT MEANS AND FOR CARRYING ALL FLOW THROUGH SAID CONDUIT MEANS, A PUMP OPERATIVELY CONNECTED TO SAID PISTON, SECOND LIQUID SUPPLY MEANS CONNECTED TO SAID PUMP AND SECOND LIQUID DISCHARGE MEANS CONNECTED FROM SAID PUMP TO SAID CONDUIT MEANS, WHEREBY SUCCESSIVE UNIT QUANTITIES OF SAID SECOND LIQUID ARE DRAWN FROM SAID SUPPLY MEANS AND DISCHARGED INTO SAID CONDUIT MEANS AND SAID FIRST LIQUID IN A DEFINITE RATIO TO THE VOLUME OF FLOW OF THE STREAM OF LIQUID THROUGH SAID CONDUIT MEANS.