Program holder assembly

Claim 1

A PROGRAM HOLDER ASSEMBLY ADAPTED TO LEAF THROUGH A PLURALITY OF STACKED PLATED CONTAINING INFORMATIVE INDICIA THEREON COMPRISING: A HOUSING; A FIRST SHAFT RIGIDLY POSITIONED IN THE HOUSING; A PLURALITY OF PLATES CONTAINING INFORMATIVE INDICIA ON EITHER SIDE THEREOF AND ADAPTED FOR ARRANGEMENT IN STACKED UPPER-IMPOSED RELATIONSHIP; A SERIES OF COLLAR MEMBERS RATATABLY AFFIXING EACH OF THE PLATES TO THE FIRST SHAFT, THE SAID COLLAR MEMBERS BEING CARRIED BY THE FIRST SHAFT AT CONSECUTIVE AXIAL INTERVALS THEREON AND EACH HAVING A GEAR MEMBER AFFIXED THERETO; A SECOND SHAFT REGIDLY POSITIONED IN THE HOUSING; A SERIES OF OF CRANK MEMBERS, ONE FOR EACH PLATE, ROTATABLY CARRIED BY THE SECOND SHAFT AT CONSECUTIVE AXIAL INTERVALS THEREON; A GEAR MEMBER ON EACH CRANK MEMBER WHICH INTERMESHES WITH THE SAID GEAR MEMBER OF EACH COLLAR MEMBER; A THIRD SHAFT ROTATABLY JOURNALED IN THE HOUSING; A SERIES OF ACTUATING LEVERS CARRIED BY THE THIRD SHAFT, ONE FOR EACH PLATE, THE SAID ACTUATIG LEVERS EXTENDING FROM THE THIRD SHAFT AT CONSECUTIVE AXIAL INTERVALS IN CIRCUMFERENTIALLY STAGGERED RELATIONSHIP TO EACH OTHER END IN CORRESPONDING ONE-TO-ONE ALIGNMENT WITH THE CRANK MEMBERS; AND MEANS FOR ROTATING THE THIRD SHAFT RELATIVE TO THE HOUSING, WHEREBY EACH OF THE ACTUATING LEVERS CONSECUTIVELY ENGAGES EACH OF THE CRANK MEMBERS SO AS TO GEAR DRIVE EACH OF THE PLATES FOR ROTATION RELATIVE TO THE HOUSING.