Motor fuel blender

Claim 1

A PROPORTIONING MECHANISM HAVING 1ST AND 2ND LIQUID METERS FOR MEASURING THE FLOW OF LIQUID CONSTITUENTS OF A BLEND AND HAVING MEANS FOR SUPPLYING THE CONSTITUENTS UNDER PRESSURE TO SAID METERS, SAID MECHANISM COMPRISING, (A) A VALVE BODY DEFINING 1ST AND 2ND INLET CHAMBERS, AN OUTLET CHAMBER AND 1ST AND 2ND PORTS CONNECTING SAID 1ST AND 2ND CHAMBERS WITH SAID OUTLET CHAMBER RESPECTIVELY, (B) MEANS CONNECTING 1ST AND 2ND METERS IN COMMUNICATION WITH SAID 1ST AND 2ND CHAMBERS, (C) 1ST AND 2ND VALVES FOR SAID 1ST AND 2ND PORTS RESPECTIVELY, MEANS MOUNTING SAID VALVES FOR SIMULTANEOUS MOVEMENT IN ONE DIRECTION TO ENLARGE AND RESTRICT SAID 1ST AND 2ND PORTS AND IN ANOTHER DIRECTION TO RESTRICT AND ENLARGE SAID 1ST AND 2ND PORTS RESPECTIVELY, (D) A DIFFERENTIAL MECHANISM COMPRISING MATING SCREW AND NUT MEMBERS, MEANS MOUNTING SAID MEMBERS FOR INDEPENDENT ROTATION, AND ONE OF SAID MEMBERS FOR AXIAL MOVEMENT RELATIVE TO THE OTHER, (E) MEANS FOR TRANSMITTING THE AXIAL MOVEMENT OF SAID AXIALLY MOVABLE MEMBER TO SAID VALVE, (F) MEANS CONNECTING SAID 1ST METER TO ROTATE ONE OF SAID MEMBERS IN ONE DIRECTION, (G) MEANS CONNECTING SAID 2ND METER TO ROTATE THE OTHER MEMBER IN THE SAME DIRECTION, WHEREBY SAID AXIALLY MOVABLE MEMBER WILL MOVE SAID VALVE TOWARD, AND MAINTAIN THEM IN, POSITIONS RELATIVE TO THEIR RESPECTIVE PORTS AT WHICH SAID METERS ROTATE SAID MEMBERS AT THE SAME SPEED, THEREBY ESTABLISHING AND MAINTAINING A PARTICULAR RATIO OF THE FLOWS THROUGH THE RESPECTIVE METERS.