Carburetors for internal combustion engines

Claim 1

A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE WHICH COMPRISES, IN COMBINATION, AN INDUCTION PIPE HAVING AN AIR INLET, A THROTTLE VALVE IN SAID INDUCTION PIPE, AN AUTOMATIC CHOAKE VALVE MOUNTED IN SAID INDUCTION PIPE UPSTREAM OF SAID THROTTLE VALVE, SAID CHOAKE VALVE BEING MOUNTED RESPONSIVE TO THE THRUST EXERTED THEREON BY THE AIR STREAM FLOWING THROUGH SAID INDUCTION PIPE SO AS TO BE URGED TOWARD OPENED POSITION BY SAID AIR STREAM, MEANS FOR YIELDINGLY URGING SAID CHOKE VALVE TOWARD THE CLOSED POSITION THEREOF, A FUEL TANK, A FUEL FEED CONDUIT STARTING FROM SAID FUEL TANK AND OPENING DIRECTLY INTO THE PORTION OF SAID INDUCTION PIPE LOCATED BETWEEN SAID CHOKE VALVE AND SAID THROTTLE VALVE, FOR CONVEYING FUEL FROM SAID FUEL TANK TO SAID INDUCTION PIPE, SAID FUEL FEED CONDUIT INCLUDING A THROTTLED PORTION, A CYLINDRICAL PASSAGE IN LINE WITH SAID THROTTLED PORTION AND OPENING INTO A PART OF SAID FUEL FEED CONDUIT LOCATED DOWNSTREAM OF SAID THROTTLED PORTION THEREOF, AND AIR BLEED CONDUIT OPENING INTO SAID CYLINDRICAL PASSAGE, A CYLINDRICAL ROD FITTING SLIDABLY IN SAID CYLINDRICAL PASSAGE AND OPERATIVELY CONNECTED WITH SAID CHOKE VALVE FOR OPENING OR CLOSING THE COMMUNICATION BETWEEN SAID AIR BLEED CONDUIT AND SAID FUEL FEED CONDUIT ACCORDING TO THE POSITION OF SAID CHOKE VALVE, SAID CYLINDRICAL ROD BEING POSITIONED RELATIVE TO THE OPENING OF SAID AIR BLEED CONDUIT IN SUCH A MANNER AS TO CLOSE OFF SAID OPENING IN RESPONSE TO THE OPENING SAID CHOKE VALVE, A FUEL METERING MEMBER CARRIED BY SAID CYLINDRICAL ROD AND SLIDABLE IN SAID THROTTLED SECTION FOR CONTROLLING THE CROSS SECTION THERETHROUGH, AND VALVE MEANS MOUNTED ON SAID AIR BLEED CONDUIT OPERATIVELY CONNECTED WITH SAID THROTTLE VALVE.