Thermal switch construction and system

Claim 1

A THERMAL SWITCH COMPRISING FIRST AND SECOND CONTACTS, SUPPORT MEANS FOR EACH CONTACT INCLUDING FIRST AND SECOND BIMETALLIC MEMBERS SO ORIENTED THAT THEY MOVE IN THE SAME DIRECTION UPON HEATING AND ALSO UPON COOLING, A RESISTANCE HEATER IN HEAT-TRANSFER RELATIONSHIP WITH SAID FIRST BIMETALLIC MEMBER WHICH WILL URGE SAID FIRST CONTACT AWAY FROM SAID SECOND CONTACT WHEN THE RESISTANCE HEATER IS ENERGIZED, SAID SECOND BIMETALLIC MEMBER TENDING TO URGE THE CONTACTS TOGETHER WHEN HEATED, A HIGH RESISTANCE LOW HEAT-CAPACITY AUXILIARY BIMETALLIC MEMBER ORIENTED TO MOVE IN THE SAME DIRECTION AS SAID FIRST AND SECOND BIMETALLIC MEMBERS UPON HEATING AND COOLING, HAVING A FREE END UPON WHICH SAID SECOND CONTACT IS MOUNTED, A LOW HEAT-FLOW IMPEDANCE CONNECTION AFFIXING SAID AUXILIARY BIMETALLIC MEMBER TO SAID SECOND BIMETALLIC MEMBER WHEREBY SAID SECOND BIMETALLIC MEMBER SERVES AS A HEAT-SINK TO DRAIN HEAT FROM SAID AUXILIARY BIMETALLIC MEMBER, SAID AUXILIARY BIMETALLIC MEMBER BEING HIGHLY AFFECTED BY HEAT TRANSMITTED THROUGH THE CONTACTS FROM SAID RESISTANCE HEATER AND BY HEAT GENERATED BY THE PASSAGE OF CURRENT THERETHROUGH DUE TO ITS OWN RESISTANCE WHEREBY UPON SEPARATION OF THE CONTACTS ITS RAPID COOLING WILL CAUSE A RAPID PARTING OF THE CONTACTS, SAID SECOND BIMETALLIC MEMBER BEING PROVIDED WITH AN EXTENSION ARRANGED TO PROJECT BEYOND ITS JUNCTION WITH SAID AUXILIARY BIMETALLIC MEMBER AND BEHIND SAID SECOND CONTACT IN SUCH MANNER AS TO RESULT IN AN ENGAGEMENT BETWEEN SAID EXTENSION AND SAID AUXILIARY BIMETALLIC MEMBER UNDER CONDITIONS OF HEAVY OVERCLOSURE OF THE CONTACTS.