Transfer switch for tap changers for regulating transformers

Claim 1

A TRANSFER SWITCH FOR TAP-CHANGING REGULATING TRANSFORMERS COMPRISING IN COMBINATION: (A) A PLURALITY OF PAIRS OF SPACED FIXED CONTACTS, SAID PLURALITY OF PAIRS OF CONTACTS INCLUDING TWO OUTER PAIRS OF FIXED MAIN CONTACTS AND INNER PAIRS OF AUXILIARY FIXED CONTACTS ARRANGED BETWEEN SAID TWO PAIRS OF FIXED MAIN CONTACTS; (B) A PLURALITY OF CONTACT BRIDGES EACH ADAPTED TO ENGAGE WITH AND TO PART FROM, ONE OF SAID PLURALITY OF PAIRS OF FIXED CONTACTS, SAID PLURALITY OF CONTACT BRIDGES INCLUDING TWO MAIN CONTACT BRIDGES EACH ADAPTED TO ENGAGE WITH, AND TO PART FROM, ONE OF SAID TWO PAIRS OF FIXED MAIN CONTACTS, AND SAID PLURALITY OF CONTACT BRIDGES FURTHER INCLUDING AUXILIARY CONTACT BRIDGES EACH ADAPTED TO ENGAGE WITH AND TO PART FROM, ONE OF SAID PAIRS OF AUXILIARY FIXED CONTACTS; (C) A PAIR OF TERMINALS FOR CONNECTING SAID TRANSFER SWITCH TO DIFFERENT TAPS OF A TRANSFORMER WINDING, EACH OF SAID PAIR OF TERMINALS BEING CONDUCTIVELY CONNECTED TO ONE OF EACH SAID TWO PAIRS OF FIXED MAIN CONTACTS;