Carburetor

Claim 1

A CARBURETOR COMPRISING A BODY STRUCTURE HAVING AN AIR AND FUEL MIXTURE CONDUIT THERETHOUGH, A THROTTLE VALVE MOUNTED ACROSS SAID MIXTURE, CONDUIT FOR MOVEMENT FROM AN OPEN TO A POSITION CLOSING SAID MIXTURE CONDUIT, A THROTTLE LEVER CONNECTED TO SAID THROTTLE VALVE AND MOVABLE THEREWITH FOR OPERATING SAID THROTTLE VALVE, AN AIR VALVE MOUNTED WITHIN SAID MIXTURE CONDUIT ANTERIORLY OF SAID THROTTLE VALVE FOR MOVEMENT IN RESPONSE TO AIR FLOW THROUGH SAID MIXTURE CONDUIT FROM A POSITION CLOSING SAID MIXTURE CONDUIT TO AN OPEN POSITION, A SPRING CONNECTED BETWEEN SAID AIR VALVE TOWARD A CLOSED POSITION, SAID AND BIASING SAID AIR VALVE TOWARD A CLOSED POSITION, SAID CARBURETOR BODY INCLUDING A FUEL RESERVOIR AND FIRST AND SECOND FUEL PASSAGES CONNECTED BETWEEN SAID FUEL RESERVOIR AND SAID MIXTURE CONDUIT, A FIRST METERING ROD MOVABLY MOUNTED ON SAID CORBURETOR AND HAVING PORTIONS VARYING SEQUENTIALLY FROM A FIRST SMALL THICKNESS TO A LARGER THICKNESS TO A SECOND SMALL THICKNESS POSITIONED FOR MOVEMENT INTO SAID FIRST FUEL PASSAGE FOR VARYING THE FLOW OF FUEL THERETHROUGH, LINKAGE MEANS CONNECTING SAID METERIAL ROD OPERATIVELY TO SAID AIR VALVE TO BE MOVED THEREWITH UPON THE OPENING AND CLOSING MOVEMENT OF SAID AIR VALVE, A SECOND METERING ROD MOVABLY MOUNTED ON SAID CARBURETOR BODY AND HAVING A PORTION OF VARYING SIZE INCLUDING A CONICAL SHOULDER EXTENDING INTO SAID SECOND FUEL PASSAGE, A CONICAL SURFACE IN SAID SECOND