Electric tape winding and display device

Claim 1

IN A DEVICE FOR USE IN SCANNING AND CHECKING SELECTED PORTIONS OF A CONTINUOUS RECORD IN ROLLED FROM IN WHICH STATISTICAL INFORMATION IS PRINTED ON A CONTINUOUS STRIP, WEB, OR TAPE, THE COMBINATION OF A HOUSING HAVING TWO PARALLEL SIDES, A PARTIALLY OPEN FRONT END, A PARTIALLY OPEN REAR END, AND A PLANAR, UPWARDLY AND REARWARDLY INCLINED TOP PORTION PROVIDING A WORK SURFACE, A PAIR OF ROLLERS EXTENDING BETWEEN THE SIDES OF THE HOUSING ADJACENT OPPOSITE ENDS OF SAID WORK SURFACE FOR SUPPORTING A LENGTH OF TAPE INTERMEDIATE ITS ENDS FOR SELECTIVE LONGITUDINAL MOVEMENT IN EITHER DIRECTION ACROSS SAID WORK SURFACE, A PAIR OF SPOOLS EACH HAVING AN END PORTION OF SAID TAPE WOUND THEREON AND HAVING A CENTRAL SHAFT ARRANGED AXIALLY THEREOF, IN FRICTIONAL ENGAGEMENT THEREWITH, AND EXTENDING BEYOND ITS ENDS, SAID SHAFTS EXTENDING BETWEEN OPPOSITE SIDES OF THE HOUSING ADJACENT ITS ENDS, BELOW SAID ROLLERS, AND HAVING THEIR END PORTIONS REMOVABLY AND ROTATABLY CONNECTED, RESPECTIVELY, TO THE SIDES OF THE HOUSING, AN ELECTRIC MOTOR IN THE HOUSING HAVING SPEED REDUCING GEARS AND HAVING A SHAFT EXTENDING TRANSVERSELY THRU ONE SIDE OF THE HOUSING INTERMEDIATE ITS ENDS, AND DRIVE MEANS INCLUDING CLUTCH MEANS FOR DRIVINGLY CONNECTING THE MOTOR SHAFT SELECTIVELY TO AN END PORTION OF ONE OF THE FIRST MENTIONED SHAFTS WHEREBY SAID FIRST MENTIONED SHAFTS ARE ADAPTED TO BE DRIVEN SELECTIVELY TO THEREBY MOVE THE TAPE ACROSS THE WORK SURFACE IN EITHER DIRECTION AS THE TAPE IS WOUND AND UNWOUND ON THE SPOOLS, THE SPOOLS EACH HAVING A FIXED END FLANGE RIGIDLY CONNECTED TO AN END PORTION OF THE CORRESPONDING SHAFT AND A REMOVABLE, ADJUSTABLE END FLANGE SURROUNDING THE SPOOL AND ADJUSTABLE LONGITUDINALLY RELATIVE THERETO TO ADAPT THE SPOOL FOR USE WITH TAPES OF SELECTED PREDETERMINED WIDTHS, AND HAVING A PLURALITY OF PAIRS OF TRANSVERSE GROOVES IN ITS EXTERIOR SURFACE, THE GROOVES OF EACH PAIR LYING IN A COMMON PLANE, IN PARALLEL RELATION TO EACH OTHER, SPRING TENSIONED MEANS ON SAID LAST MENTIONED END FLANGE EMBRACING THE GROOVES OF ONE PAIR IN SELECTIVE, YIELDABLE ENGAGEMENT THEREWITH, A CAM ACTUATED CLUTCH MECHANISM ON ONE OF THE SPOOLS, BETWEEN SAID FIRST MENTIONED END FLANGE AND THE ADJACENT END OF THE SPOOL, FOR FRICTIONAL ENGAGEMENT OF THE SPOOL WITH THE INNER PERIPHERY OF A PREFORMED ROLL OF TAPE LOOSELY SURROUNDING THE SPOOL, SAID CAM ACTUATED CLUTCH MECHANISM BEING OPERABLE IN RESPONSE TO TORQUE APPLIED TO THE CORRESPONDING FIRST MENTIONED SHAFT IN ONE DIRECTION ONLY AND CONSISTING ESSENTIALLY OF A PAIR OF CAM SURFACES ON OPPOSITE SIDES OF SAID FIRST MENTIONED SHAFT AND A PAIR OF CAM FOLLOWER ELEMENTS EACH PIVOTALLY CONNECTED TO THE ADJACENT END OF THE SPOOL AND ADAPTED TO BE URGED OUTWARDLY IN OPPOSITE DIRECTIONS IN RESPONSE TO ROTATIVE MOVEMENT OF SAID SHAFT RELATIVE TO THE SPOOL IN ONE DIRECTION ONLY, AND AN ELONGATED SPACER BAR ARRANGED ALONG ONE SIDE OF ONE OF THE SPOOLS FOR ENGAGEMENT WITH THE INNER PERIPHERY OF A ROLL OF TAPE SURROUNDING THE SPOOL, DURING THE INITIAL ROLLING THEREOF, TO SPACE THE INNER PERIPHERY OF SAID ROLL APART FROM THE PERIPHERAL SURFACE OF THE SPOOL AND TO DETERMINE THE INSIDE DIAMETER OF SAID ROLL, SAID SPACER BAR BEING REMOVABLY INSERTED IN A CORRESPONDING GROOVE IN THE SPOOL HAVING A DEPTH LESS THAN THE WIDTH OF THE SPACER BAR IN A RADIAL DIRECTION AND HAVING THE SIDE THEREOF OPPOSITE SAID GROOVE STRADDLED BY A CORRESPONDING NOTCH IN THE INNER PERIPHERY OF SAID LAST MENTIONED END FLANGE.