Switch actuating mechanism for controlled speed tap changer

Claim 1

AN ELECTRICAL TAP CHANGING UNDER LOAD MECHANISM COMPRISING, IN COMBINATION, A PLURALITY OF ARCUATELY ARRANGED STATIONARY CONTACTS, A MOVABLE CONTACT FOR SECQUENTIALLY ENGAGING SAID STATIONARY CONTACTS, AND INTERMITTENT MOTION TRANSMITTING MEANS INCLUDING A PAIR OF RELATIVELY MOVABLE MEMBERS THE FIRST OF WHICH IS POSITIVELY AND NONRESILIENTLY CONNECTED TO SAID MOVABLE CONTACT AND THE SECOND OF WHICH DRIVES SAID FIRST MEMBER FOR INDEXING SAID MOVABLE CONTACT WITH ACCELERATED MOTION FROM ONE STATIONARY CONTACT TO A SUCCEEDING STATIONARY CONTACT, SAID MOVABLE CONTACT INTERRUPTING CURRENT UNDER LOAD WHEN IT IS DISENGAGED FROM SAID ONE STATIONARY CONTACT AND COMPETING AN ELECTRICAL CIRCUIT UNDER LOAD WHEN IT ENGAGES SAID SUCCEEDING STATIONARY CONTACT, ONE OF SAID MEMBERS HAVING A SINGLE MEANS IN CONTINUOUS POSITIVE ENGAGEMENT WITH THE OTHER OF SAID MEMBERS BOTH DURING ACTUATION OF SAID MOVABLE CONTACT AND WHILE SAID MOVABLE CONTACT IS AT REST AND SAID SECOND MEMBER POSITIVELY DRIVING AND DIRECTLY CONTROLLING THE SPEED OF SID MOVABLE CONTACT AT ALL TIMES WHILE IT IS BEING INDEXED BETWEEN SAID STATIONARY CONTACTS, WHEREBY CONTACT BOUNCE IS AVOIDED.