Adjustable condition-responsive plunger-operated snap-action electrical switch

Claim 1

A MULTI-POLE SNAP-ACTION ELECTRICAL SWITCH COMPRISING A HOUSING; AT LEAST TWO PAIRS OF SPACED-APART CONTACTS IN SAID HOUSING; A PLURALITY OF CONTACT SPRINGS IN SAID HOUSING, EACH OF SAID CONTACT SPRINGS BEING SECURED AT ONE END TO SAID HOUSING AND SWINGABLE AT SAID END WHILE HAVING CONTACT POINTS ON THE OTHER END INTERMEDIATE THE CONTACTS OF A RESPECTIVE PAIR FOR ALTERNATELY DISENGAGING ONE OF THE CONTACTS AND ENGAGING THE OTHER CONTACT OF THE RESPECTIVE PAIR; AT LEAST ONE TONGUE MEMBER MOUNTED AT ONE END ON SAID HOUSING; ACTUATING MEANS WITHIN SAID HOUSING OPERABLE FROM THE EXTERIOR OF SAID HOUSING AND CONNECTED WITH SAID TONGUE MEMBER FOR PIVOTING SAID TONGUE MEMBER IN ONE DIRECTION ABOUT SAID END THEREOF; A CONTROL SPRING ACTING UPON SAID TONGUE MEMBER IN THE OPPOSITE DIRECTION; AT LEAST ONE SNAP SPRING CONNECTED TO SAID TONGUE MEMBER AND AT LEAST TO ONE OF SAID CONTACT SPRINGS FOR PRECIPITOUSLY PIVOTING AT LEAST ONE OF SAID CONTACT SPRINGS FROM ONE OF THE CONTACTS TO THE OTHER CONTACT OF THE RESPECTIVE PAIR WHEN SAID TONGUE MEMBER IS SWUNG SLIGHTLY BEYOND A DEADCENTER POSITION WHEREIN SAID MEMBER IS ALIGNED WITH SAID SNAP SPRING; AND A CONTROL MEMBER IN SAID HOUSING FOR TRANSMITTING MOVEMENT OF SAID ACTUATING MEANS TO ALL OF SAID CONTACT SPRINGS, SAID CONTROL MEMBER COMPRISING A ROCKER CONNECTING SAID CONTACT SPRINGS, SAID TONGUE MEMBER EXTENDING CENTRALLY BETWEEN AND SUBSTANTIALLY PARALLEL TO SAID CONTACT SPRINGS, SAID SNAP SPRING CONNECTING THE FREE END OF SAID TONGUE MEMBER CENTRALLY TO SAID ROCKER, SAID ACTUATING MEANS BEARING UPON SAID TONGUE MEMBER NEAR SAID FREE END THEREOF.