Carbureting means

Claim 1

IN A CARBURETOR DEVICE, AN AIR INTAKE PIPE, A BUTTERFLY VALVE IN SAID AIR INTAKE PIPE, A HOLLOW SHAFT JOURNALLED IN SAID PIPE AND SUPPORTING SAID VALVE FOR MOVEMENT TO AND FROM A CLOSED POSITION IN WHICH SAID VALVE SUBSTANTIALLY CLOSES SID PIPE AGAINST AIR FLOW, THROUGH AN INTERMEDIATE POSITION IN WHICH SAID BUTTERFLY VALVE IS PARTIALLY OPEN AND LESS THAN FULLY OPEN, FROM AND TO AN OPEN POSITION IN WHICH SAID BUTTERFLY VALVE IS FULLY OPEN AND AIR FLOW THROUGH SAID PIPE IS SUBSTANTIALLY UNRESTRICTED BY SAID VALVE, A BAFFLE EXTENDING LONGITUDINALLY OF SAID SHAFT AND DIVIDING SAID SHAFT INTO FIRST AND AUXILIARY PRASSAGEWAY MEANS, FUEL METERING MEANS CONNECTED WITH SAID PIPE COMPRISING A FUEL RECEIVING HEADER CHAMBER, A FLOW RECEIVING MAIN CHAMBER, AND AN AUXILIARY CHAMBER; MEANS DIVIDING SAID HEADER CHAMBER FROM SAID MAIN CHAMBER COMPRISING AN APERTURED DISC AND A MAIN VALVE PLATE CLOSINGLY COVERING THE APRETURE IN SAID DISC, SAID VALVE PLATE BEING SHIFTABLE TO UNCOVER AND COVER SAID APERTURE TO RESPECTIVELY ESTABLISH AND DISESTABLISH FLOW COMMUNICATION BETWEEN SAID HEADER CHAMBER AND SAID MAIN CHAMBER, SAID FIRST PASSAGEWAY MEANS BEING SEGREGATED FROM SAID AUXILIARY CHAMBER APERTURED ADJACENT ONE SIDE OF SAID BUTERFLY VALVE COMMUNICATING SAID MAIN CHAMBER WITH SAID AIR PIPE ADJACENT SAID ONE SIDE OF SAID BUTTERFLY VALVE; MEANS DIVIDING SAID MAIN CHAMBER FROM SAID AUXILIARY CHAMBER COMPRISING A SECOND APERTURED DISC AND A SECOND VALVE PLATE CLOSINGLY COVERING THE APERTURE IN SAID SECND IDSC, SAID SECOND VLAVE PLATE BEING SHIFTABLE TO RESPECTIVELY ESTABLISH AND DISESTABLISH FLOW COMMUNICATION BETWEEN SAID MAIN CHAMBER AND SAID AUXILIARY CHAMBER, SAID AUXILIARY PASSAGEWAY MEANS BEING APERTURED ADJACENT THE OTHER SIDE OF SAID BUTTERFLY VALVE AND COMMUNICATING SAID AUXILIARY CHAMBER WITH SAID AIR PIPE ADJACENT SAID OTHER SIDE OF SAID BUTTERFLY VALVE; SAID VALVE PLATES BEING CONNECTED TO SAID SHAFT FOR CONJOINT MOVEMENT WITH SAID BUTTERFLY VALVE, SAID MAIN VALVE PLATE BEING POSITIONED TO SUBSTANTIALLY COVER ITS RELATED DISC APERTURE WHEN SAID BUTTERFLY VALVE IS IN SAID CLOSED POSITION AND TO PRGRESSIVELY UNCOVER SAID RELATED APRETURE CONCURRENTLY WITH MOVEMENT OF SAIDBUTTERFLY VALVE TOWARD SAID OPEN POSITION, ESTABLISHING FLOW TO SAID BUTTERFLY VALVE ONE SIDE, SAID SECOND VLAVE PLATE BEING POSITIONED TO COVER THE APERTURE IN SAID SECOND DISC AND TO MAINTAIN APERTURE CLOSING COVERAGE THROUGH A SUBSTANTIAL PORTION OF MOVEMENT OF SAID SECOND VLAVE PLATE WITH SAID BUTTERFLY VALVE MOVEMENT TOWARD SAID OPEN POSITION, WHEREBY TO MAINTAIN DISESTABLISHMENT OF FUEL FLOW TO SAID AUXILIARY CHAMBER AND SAID BUTTERFLY VLAVE OTHER SIDE DURING AT LEAST BUTTERFLY VALVE OPENING MOVEMENT TO SAID INTERMEDIATE POSITION, MOVEMENT OF SAID BUTTERFLY VALVE BEYOND SAID INTERMEDIATE POSITION TOWARD SAID OPEN POSITION EFFECTING SHIFT OF SAID SECOND VALVE PLATE TO PROGRESSIVELY UNCOVER THE APERTURE IN SAID SECOND DISC TO ESTABLISH COMMUNICATION THROUGH SAID AUXILIARY CHAMBER AND SAID AUXILIARY PASSAGEWAY MEANS TO SAID BUTTERFLY VALVE OTHER SIDE, WHEREBY TO ESTABLISH FUEL FLOW TO SAID BUTTERFLY VALVE OTHER SIDE AT LEAST DURING A TERMINAL PORTION OF THE MOVEMENT OF SAID BUTTERFLY VALVE TO SAID OPEN POSITION.