Electrically operated speed control device

Claim 1

AN ELECTRICALLY OPERATED DEVICE FOR ADJUSTABLY CONTROLLING THE SPEED OF OPERATION OF AN INTERNAL COMBUSTION ENGINE WHICH COMPRISES: A GENERATOR HAVING ITS SPEED CONTROLLED BY DRIVE MEANS RELATED TO THE LOAD CHANGE FACTOR OF AN INTERNAL COMBUSTION ENGINE; AN ELECTRIC MOTOR; A CONSTANT SLIP VARIABLE TORQUE ELECTRIC CLUTCH ENERGIZED BY SAID GENERATOR AND OPERATIVELY CONNECTED TO SAID MOTOR; A VACUUM CHAMBER CONNECTED TO SAID CLUTCH AND DISPOSED SO AS TO BE ROTATED BY SAID CLUTCH; AN EGRESS PORT IN SAID VACUUM CHAMBER; A BLEED-OFF LINE DISPOSED SO AS TO BE, SELECTIVELY, IN AND OUT OF CONTACT WITH SAID EGRESS PORT UPON ROTATION OF SAID VACUUM CHAMBER; AN ACTUATOR CHAMBER; A DIAPHRAGM TRANSVERSELY DISPOSED IN SAID ACTUATOR CHAMBER SO AS TO BE ACTUATED BY VACUUM IN SAID ACTUATOR CHAMBER; MEANS FOR SELECTIVELY INTRODUCING VACUUM INTO SAID ACTUATOR CHAMBER; A VACUUM CONDUIT LEADING FROM SAID ACTUATOR CHAMBER TO SAID VACUUM CHAMBER; AN ACTUATOR ROD CONNECTED TO SAID DIAPHRAGM ADJACENT ONE END OF SAID ROD; A CARBURETOR; A FLOW VALVE MOUNTED IN SAID CARBURETOR; AND MEANS CONNECTED TO SAID ACTUATOR ROD AND TO SAID FLOW VALVE FOR OPERATING SAID FLOW VALVE UPON RECIPROCAL MOVEMENT OF SAID ACTUATOR ROD.