Rotary card index with brake

Claim 1

THE COMBINATION OF A STAND, A SHAFT HORIZONTALLY JOURNALED IN SAID STAND, A BARREL ROTATABLY MOUNTED COAXIALLY ON SAID SHAFT, A BRAKE DISC RIGIDLY MOUNTED ON THE STAND COAXIALLY WITH SAID SHAFT, AND MEANS INCLUDING A BRAKE RING HAVING A RESILIENT SPLIT RING PORTION ENCIRCLING SAID BRAKE DISC NORMALLY IN FREELY BUT FRICTIONALLY CIRCUMFERENTIALLY SLIDABLE RELATION TO THE DISC, SAID BRAKE RING HAVING END PORTIONS EXTENDING OUTWARDLY FROM SAID SPLIT RING PORTION IN SPACED OPPOSED RELATION TO EACH OTHER IN A COMMON PLANE THAT IS PERPENDICULAR TO THE AXIS OF THE BARREL AND THE BRAKE DISC, AT LEAST ONE END PORTION HAVING LOST-MOTION ENGAGEMENT WITH THE BARREL AND THERE BEING MEANS RIGIDLY CONNECTED TO SAID SHAFT AND DISPOSED BETWEEN AND CLOSELY ADJACENT BOTH OF SAID END PORTIONS, SAID MEANS BEING ENGAGEABLE WITH ONE OR THE OTHER OF SAID END PORTIONS UPON ROTATION OF THE SHAFT IN EITHER OF OPPOSITE DIRECTIONS, RESPECTIVELY, PROVIDING FOR TRANSMISSION OF MOTION FROM SAID SHAFT THROUGH SAID BRAKE RING TO SAID BARREL WITH SAID RING PORTION EXPANDED FROM SAID BRAKE DISC TO PERMIT FREE ROTATION OF THE SHAFT AND SAID BARREL UPON APPLICATION OF TURNING FORCE TO SAID SHAFT IN EITHER OF OPPOSITE DIRECTIONS AND ALSO PROVIDING FOR ENGAGEMENT OF SAID ONE END PORTION OF THE BRAKE RING BY THE BARREL TO CONTRACT SAID BRAKE RING INTO FRICTIONAL BRAKING ENGAGEMENT WITH THE BRAKE DISC UPON APPLICATION OF FORCE TO THE BARREL TENDING TO ROTATE THE BARREL IN AT LEAST ONE DIRECTION.