Rotatable switch actuators

Claim 1

A ROTATABLE SWITCH ACTUATOR COMPRISING A HOLLOW BASE, A SHAFT ROTATABLY MOUNTED IN SAID BASE AND HAVING MEANS FOR ACTUATING A SWITCH OPERATOR, A COIL SPRING WRAPPED AROUND SAID SHAFT, AND A PAIR OF ROTATABLE RINGS SURROUNDING SAID SHAFT AND HAVING HOOKS RESPECTIVELY SECURED TO OPPOSITE ENDS OF SAID SPRING, SAID HOOKS BEING SPACED ANGULARLY ABOUT THE AXIS OF SAID SHAFT RELATIVE TO EACH OTHER WHEN THE SHAFT IS IN A NEUTRAL POSITION, EACH RING HAVING ALSO A RADIALLY EXTENDING FINGER SPACED ANGULARLY ABOUT THE SHAFT AXIS WITH RESPECT TO ITS ASSOCIATED HOOK, SAID FINGERS ALSO BEING SPACED ANGULARLY ABOUT THE SHAFT AXIS WITH RESPECT TO EACH OTHER WHEN THE SHAFT IS IN SAID NEUTRAL POSITION, SAID BASE HAVING A RIB EXTENDING INTO THE SPACE BETWEEN SAID FINGERS TO PREVENT ROTATION OF SAID RINGS SIMULTANEOUSLY IN THE SAME DIRECTION, SAID SHAFT HAVING AXIALLY EXTENDING TONGUES RESPECTIVELY ENGAGING SHOULDERS OF SAID FINGERS, ONE OF SAID RINGS BEING ROTATED IN ONE DIRECTION BY ENGAGEMENT OF ITS FINGER SHOULDER WITH ONE OF SAID TONGUES IN RESPONSE TO ROTATION OF SAID SHAFT IN SAID ONE DIRECTION AWAY FROM SAID NEUTRAL POSITION TO STRETCH SAID SPRING FROM ONE END THEREOF WHILE THE OTHER RING IS HELD AGAINST ROTATION BY SAID RIB, AND SAID OTHER RING BEING ROTATED IN THE OPPOSITE DIRECTION BY ENGAGEMENT OF ITS FINGER SHOULDER WITH THE OTHER TONGUE IN RESPONSE TO ROTATION OF SAID SHAFT IN THE OPPOSITE DIRECTION AWAY FROM SAID NEUTRAL POSITION TO STRETCH SAID SPRING FROM ITS OTHER END WHILE SAID ONE RING IS HELD AGAINST ROTATION BY SAID RIB.