Actuator for bellows type time delay switch

Claim 1

IN ACTUATING MECHANISM FOR AN ELECTRICAL SWITCH OF THE TOGGLE TYPE, THE COMBINATION WITH AN ACTUATOR, OF A BELLOWS WHICH IS DEFLECTED WHEN THE ACTUATOR IS DEPRESSED, TOGGLE MECHANISM INCLUDING A PAIR OF SWITCH BLADES PIVOTALLY CARRIED BY THE ACTUATOR AND EXTENDING IN OPPOSITE DIRECTIONS, A TERMINAL MEMBER ABOVE AND BELOW THE FREE END OF EACH SWITCH BLADE AND WITH WHICH THE SWITCH BLADES COACT AS THE TOGGLE MECHANISM IS ACTUATED, A STUD PROJECTING FROM RESPECTIVE SIDES OF THE TOP OF THE BELLOWS ONE STUD BEING LOCATED WITHIN THE BELLOWS AND HAVING DEPENDING RELATION WITH THE TOP WALL, THE OUTER STUD PROJECTING OUTWARDLY FROM THE TOP WALL, AN OVERTRAVEL SPRING CARRIED BY THE SAID OTHER STUD AND BEING INTERPOSED BETWEEN THE SAME AND THE ACTUATOR, SAID SPRING BEING STRONG ENOUGH TO RESIST COMPRESSION WHEN THE ACTUATOR IS DEPRESSED TO COLLAPSE THE BELLOWS TO AN EXTENT DETERMINED BY CONTACT OF THE DEPENDING STUD WITH A STOP, AND SAID FFIG-01 SPRING BEING WEAK ENOUGH SO THAT IT IS COMPRESSED UPON CONTINUED MOVEMENT OF THE ACTUATOR INTO CONTACT WITH THE SAID OTHER STUD TO CAUSE AN ACTUATION OF THE TOGGLE MECHANISM, WHEREBY THE BELLOWS IS COLLAPSED TO SAID PREDETERMINED EXTENT EACH TIME THE TOGGLE MECHANISM IS ACTUATED BY THE OPERATOR IN DEPRESSING THE ACTUATOR TO DEFLATE THE BELLOWS.