Speed control device

Claim 1

IN AN AUTOMATICALLY OPERABLE, MANUALLY SELECTABLE, SPEED MAINTAINING DEVICE PARTICULARLY ADAPTED FOR THE PRIME MOVER OF A GROUND VEHICLE, SAID DEVICE INCLUDING MEANS FOR SENSING THE GROUND SPEED OF THE VEHICLE, MEANS INCLUDING AN ARMATURE ARRANGED TO BE DRIVEN BY SAID SPEED SENSING MEANS EFFECTIVE TO GENERATE A VARYING MAGNETIC FIELD IN PROPORTION TO SAID SPEED, A MAGNET REACTION MEANS AUTOMATICALLY ARCUATELY MOVABLE IN PROPORTION TO THE INTENSITY OF SAID MAGNETIC FIELD, ELECTRICAL CONTACT MEANS, A MEANS DEFINING A CONTROL CIRCUIT CONTAINING SAID CONTACT MEANS, SAID REACTION MEANS BEING OPERABLY RESPONSIVE TO A PREDETERMINED VALVE OF SAID MAGNETIC FIELD EFFECTIVE TO OPERATE SAID CONTACT MEANS, RESISTANCE MEANS IN SAID CIRCUIT FOR REGULATING THE VALUE OF THE CURRENT DELIVERED TO SAID ARMATURE AS A FUNCTION OF THE DESIRED VEHICLE SPEED TO BE MAINTAINED AND HENCE THE INTENSITY OF SAID MAGNETIC FIELD CORRESPONDINGLY DETERMING THE EXTENT OF ARCUATE MOVEMENT OF SAID REACTION MEANS IN RELATION TO A PREDETERMINED VEHICLE SPEED, SAID RESISTANCE MEANS PROVIDING A RESISTANCE TO THE CURRENT FLOW TO SAID ARMATURE AND HENCE THE INTENSITY OF SAID MAGNETIC FIELD GENERATED, AND MEANS IN SAID CIRCUIT TO REGULATE THE FUEL DELIVERY TO SAID PRIME MOVER, SAID CONTACT MEANS BEING OPERATIVE IN OPEN AND CLOSED POSITIONS OF SAID CONTACTS TO INCREASE AND DECREASE THE VEHICLE SPEED.