Electric snap-action switch

Claim 1

IN AN ELECTRICAL SNAP-ACTION SWITCH, SUPPORT MEANS, AN ELONGATED SNAP MEMBER OF SUBSTANTIALLY U-SHAPED CONFIGURATION HAVING A PAIR OF ELONGATED SHANKS ONE OF WHICH IS FIXED TO SAID SUPPORT MEANS AND THE OTHER OF WHICH IS FREELY MOVEABLE WITH RESPECT TO SAID FIXED SHANK, A STATIONARY CONTACT, A MOVABLE CONTACT CARRIED BY SAID FREELY MOVABLE SHANK FOR MOVEMENT WITH THE LATTER INTO AND OUT OF ENGAGEMENT WITH SAID STATIONARY CONTACT, AND SPRING MEANS OPERATIVELY CONNECTED TO SAID FREELY MOVABLY SHANK FOR YIELDABLY MAINTAINING THE LATTER EITHER IN A POSITION WHERE SAID MOVABLE CONTACT ENGAGES SAID STATIONARY CONTACT OR IN A POSITION WHERE SAID MOVABLE CONTACT IS DISPLACED FROM SAID STATIONARY CONTACT, SAID SPRING MEANS MOVING THROUGH A DEAD-CENTER POSITION, DURING DISPLACEMENT OF SAID FREELY MOVABLE SHANK BETWEEN SAID POSITIONS THEREOF FOR ACTING ON SAID FREELY MOVABLE SHANK TO SNAP THE LATTER BETWEEN SAID POSTIONS AS SAID SPRING MEANS PASSES THROUGH SAID DEAD-CENTER POSITION, LEVER MEANS PIVOTALLY CONNECTED TO SAID SUPPORT MEANS AND OPERATIVELY CONNECTED WITH SAID SPRING MEANS FOR DISPLACING THE LATTER IN EITHER DIRECTION THROUGH SAID DEAD-CENTER POSITION TO CHANGE SAID FREELY MOVABLE SHANK BETWEEN SAID POSITIONS THEREOF, SAID LEVER MEANS BEING TURNABLE ABOT A PREDETERMINED AXIS AND SAID SPRING MEANS BEING CONNECTED TO SAID FREELY MOVABLE SHANK AT A LOCATION ADJACENT TO SAID AXIS, AND A ADJUSTING MEANS CARRIED BY SAID SUPPORT MEANS FOR ADJUSTING SAID AXIS IN THE DIRECTION OF MOVEMENT OF SAID FREELY MOVABLE SHANK, SAID LEVER MEANS HAVING THE CONFIGURATION OF A STIRRUP PROVIDED WITH A PAIR OF SUBSTANTIALLY PARALLEL LEGS PIVOTALLY ENGAGING SAID SUPPORT MEANS, SAID LEGS OF SAID STIRRUP BEING SITATED SUBSTANTIALLY IN A PLANE WHICH INCLUDES SAID FIXED SHANK WHEN SAID SPRING MEANS IS IN SAID DEAD-CENTR POSITION THEREO, AND SAID ADJUSTING MEANS INCLUDING A PAIR OF ELONGATED MEMBERS TO WHICH SAID LEGS OF SAID STIRRUP ARE PIVOTALLY CONNECTED, SAID ELONGATED MEMBERS EXTENDING SUBSTANTIALLY PERPENDICULARLY THROUGH SAID PLANE AND EACH BEING LONGITUDINALLY ADJUSTABLE INDEPENDENTLY OF THE OTHER, SO THAT THE LEGS OF SAID STIRRUP CAN HAVE THEIR PIVOTAL CONNECTIONS INDEPENDENTLY ADJUSTED.