Carburetor construction

Claim 1

A FUEL-AIR MIXING DEVICE COMPRISING FIRST AND SECOND AIR PASSAGE MEANS INCLUDING FIRST AND SECOND ADJUSTABLE AIR FLOW REGULATING VALVE MEANS, RESPECTIVELY, OPERATIVELY ASSOCIATED THEREWITH FOR CONTROLLING THE FLOW OF AIR THERETHROUGH, SAID FIRST AND SECOND AIR PASSAGE MEANS INCLUDING CORRESPONDING AIR INLET ENDS FOR RECEIVING AIR INTO SAID PASSAGE MEANS AND AIR OUTLET ENDS MERGING TOGETHER DOWNSTREAM OF SAID SECOND AIR FLOW REGULATING VALVE MEANS TO FORM A SINGLE OUTLET FOR DISCHARGING AIR AND AIR AND FUEL MIXTURES THEREFROM, SAID FIRST AIR PASSAGE MEANS INCLUDING FUEL INLET MEANS OPERATIVE TO ADMIT FUEL INTO SAID FIRST AIR PASSAGE MEANS IN AMOUNTS INCREASING AND DECREASING AS THE FLOW OF AIR THROUGH SAID FIRST AIR PASSAGE MEANS INCREASES AND DECREASES, RESPECTIVELY, SAID SECOND AIR PASSAGE MEANS BEING DEVOID OF FUEL INLET MEANS, MEANS OPERATIVELY CONNECTING SAID FIRST VALVE MEANS WITH SAID SECOND VALVE MEANS FOR OPENING AND CLOSING OF THE LATTER IN RESPONSE TO OPENING AND CLOSING OF THE FORMER, SAID MEANS OPERATIVELY CONNECTING SAID VALVE MEANS INCLUDING A FREE LOST MOTION CONNECTION WITH SAID SECOND VALVE MEANS AFFORDING FOR LIMITED MOVEMENT OF SAID FIRST VALVE MEANS IN BOTH DIRECTION INDEPENDENT OF MOVEMENT OF SAID SECOND VALVE MEANS BUT PREVENTING MOVEMENT OF SAID FIRST VALVE MEANS TOWARD A CLOSED POSITION PAST THE CORRESPONDING CLOSED POSITION OF SAID SECOND VALVE MEANS THEREBY ASSURING THAT THE LATTER WILL CLOSE WITH SAID FIRST VALVE MEANS, MEANS YIELDINGLY URGING SAID SECOND VALVE MEANS TO AN OPEN POSITION CORRESPONDING TO THE ADJUSTED OPEN POSITION OF SAID FIRST VALVE MEANS, AND DOUBLE ACTING DASHPOT MEANS YIELDINGLY RESISTING MOVEMENT OF SAID SECOND VALVE MEANS TOWARD ITS OPEN POSITION.