Device for driving automotive vehicles at constant speed

Claim 1

APPARATUS FOR DRIVING AN AUTOMOBILE VEHICLE AT A SELECTED SPEED, WHICH COMPRISES A THROTTLE VALVE FOR CONTROLLING THE SPEED OF SAID AUTOMOTIVE VEHICLE, AN ELECTROMAGNET, MEANS TO SELECTIVELY ENERGIZE SAID ELECTROMAGNET, A PLATE OF FERROMAGNETIC MATERIAL HAVING A REST POSITION WHEN THE ELECTROMAGNET IS DEENERGIZED ADJACENT TO AND OUT OF CONTACT WITH SAID ELECTROMAGNET AND MOUNTED FOR DISPLACEMENT IN EITHER OF TWO OPPOSITE DIRECTIONS, SAID ELECTROMAGNETIC BEING MOUNTED FOR DISPLACEMENT FROM SAID REST POSITION TO A POSITION OF CONTACT WITH SAID PLATE WHEN SAID ELECTROMAGNET IS ENERGIZED AND FROM SAID POSITION OF CONTACT BACK TO SAID REST POSITION WHEN SAID ELECTROMAGNET IS DEENERIZED, SAID ELECTROMAGNET BEING HELD IN FIXED RELATION TO SAID PLATE WHEN SAID ELECTROMAGNET IS IN AN ENERGIZED STATE, A LINKAGE DIRECTLY AND CONTINUOUSLY CONNECTING SAID ELECTROMAGNET BOTH WHEN IN SAID ENERGIZED STATE AND WHEN IN A DEENERGIZED STATE TO SAID THROTTLE VALVE, AND MEANS TO SELECTIVELY DISPLACE SAID PLATE TOGETHER WITH SAID ELECTROMAGNET WHEN SAID ELECTROMAGNET IS IN SAID ENERGIZED STATE TO MOVE SAID PLATE TOGETHER WITH SAID ELECTROMAGNET TO OPERATE SAID LINKAGE AND THEREBY CHANGE THE OPENING OF SAID THROTTLE VALVE.