Printing mechanism for business machines

Claim 1

A PRINTING MECHANISM FOR BUSINESS MACHINES, COMPRISING, IN COMBINATION, AN ORDINAL SET OF TRANSFER WHEELS TURNABLE BETWEEN DIGITAL POSITIONS; A PLATEN; A SHAFT; AN ORDINAL SET OF SUPPORTS MOUNTED ON SAID SHAFT TURNABLE ABOUT A COMMON AXIS; AN ORDINAL SET OF PRINTING WHEELS RESPECTIVELY MOUNTED ON SAID SUPPORTS FOR TURNING MOVEMENT BETWEEN DIGITAL POSITIONS AND HAVING DIGITAL PRINTING PORTIONS WITH LOCKING PORTIONS, EACH PRINTING WHEEL AND CORRELATED SUPPORT HAVING A TRANSFER POSITION IN WHICH THE RESPECTIVE PRINTING WHEEL COOPERATES WITH A TRANSFER WHEEL TO BE TURNED BETWEEN DIGITAL POSITIONS IN WHICH DIFFERENT PRINTING PORTIONS ARE OPERATIVE, AND A PRINTING POSITION IN WHICH THE OPERATIVE PRINTING PORTION ABUTS SAID PLATEN AND IS ADAPTED TO PRODUCE AN IMPRINT; AND ORDINAL SET OF ACTUAOR MEMBERS MOUNTED ON SAID SHAFT FOR TURNING MOVEMENT, EACH ACTUATOR MEMBER BEING MOVABLE RELATIVE TO A CORRELATED PRINTING WHEEL BETWEEN AN INOPERATIVE POSITION AND A LOCKING POSITION ENGAGING SAID LOCKING PORTION OF THE RESPECTIVE OPERATIVE PRINTING PORTION FOR LOCKING THE CORRELATED PRINTING WHEEL IN SAID TRANSFER PORTION AGAINST TURNING MOVEMENT, AND BEING MOVABLE IN SAID LOCKING POSITION WITH SAID PRINTING WHEEL TO A FINAL POSITION OF MOVING THE SAME IN LOCKED CONDITION TO SAID PRINTING POSITION IN WHICH SAID OPERATIVE PORTION IS DIRECTLY PRESSED BY SAID ACTUATING MEMBER AGAINST SAID PLATEN BY THE CORRELATED ACTUATING MEMBER; COUPLING MEANS INCLUDING LOST-MOTION MEANS CONNECTING EACH ACTUATING MEMBER WITH THE CORRELATED SUPPORT SO THAT EACH ACTUATING MEMBER FIRST MOVES RELATIVE TO SAID SUPPORT FROM SAID INOPERATIVE POSITION TO SAID LOCKING POSITION AND IS THEN COUPLED WITH SAID SUPPORT DURING MOVEMENT TO SAID FINAL AND PRINTING POSITIONS SO THAT SAID ACTUATING MEMBER AND SAID SUPPORT BOTH URGE SAID PRINTING WHEEL AGAINST SAID PLATEN; AND MEANS FOR MOVING SELECTED ACTUATOR MEMBERS BETWEEN SAID POSITIONS OF THE SAME.