Dual-range governor for internal combustion engines

Claim 1

IN AN INTERNAL COMBUSTION ENGINE HAVING A THROTTLE THAT CAN BE OPENED AND CLOSED FOR CONTROLLING ENGINE SPEED, AN ENGINE SPEED RESPONSIVE MEMBER MOVABLE IN OPPOSITE DIRECTIONS AND LINKED TO THE THROTTLE TO MOVE THE SAME TOWARD ITS CLOSED POSITION IN CONSEQUENCE OF ENGINE ACCELERATION AND TOWARD ITS OPEN POSITION IN CONSEQUENCE OF ENGINE DECELERATION, AND A CONTROL MEMBER MOUNTED FOR MANUAL ADJUSTING MOVEMENT BETWEEN DEFINED HIGH SPEED AND LOW SPEED POSITIONS: (A) A LOW SPEED SPRING HAVING ITS OPPOSITE ENDS AT ALL TIMES CONNECTED IN FORCE TRANSMITTING RELATIONSHIP WITH THE SPEED RESPONSIVE MEMBER AND WITH THE CONTROL MEMBER, RESPECTIVELY, SO THAT SAID LOW SPEED SPRING REACTS BETWEEN SAID MEMBERS TO BIAS THE SPEED RESPONSIVE MEMBER IN ITS THROTTLE CLOSING DIRECTION WITH A FORCE WHICH CAN BE INCREASED BY MOVEMET OF THE CONTROL MEMBER TOWARD ITS HIGH SPEED POSITION; (B) A HIGH SPEED SPRING; AND (C) COOPERATING MEANS ON THE HIGH SPEED SPRING AND ON SAID MEMBERS PROVIDING FORCE TRANSMITTING CONNECTIONS BETWEEN THE OPPOSITE ENDS OF THE HIGH SPEED SPRING AND SAID MEMBERS RESPECTIVELY, ONE OF SAID LAST MENTIONED CONNECTIONS BEING A LOST MOTION CONNECTION WHICH IS RENDERED OPERATIVE BY MOVEMENT OF THE CONTROL MEMBER TO ITS HIGH SPEED POSITION AND INOPERATIVE BY MOVEMENT OF THE CONTROL MEMBER TO ITS LOW SPEED POSITION, SO THAT WHEN THE CONTROL MEMBER IS IN ITS HIGH SPEED POSITION THE HIGH SPEED SPRING IMPOSES UPON THE SPEED RESPONSIVE MEMBER A BIASING FORCE WHICH SUPPLEMENTS THAT OF THE LOW SPEED SPRING.