Adding machine tape reversing rewinder

Claim 1

A reversing rewinder for use with adding machines or the like employing tapes, comprising: horizontal guide means comprising a pair of leveller bars, a spindle assembly having a detachable roll for rewinding and storing tape, the spindle assembly including an axle with the roll slidably mounted thereon and a side plate slidably mounted on the axle at each end of the roll, means for frictionally braking said spindle assembly, a pedestal having upright means for detachably holding the leveller bars and the spindle assembly in parallel spaced relation below the leveller bars, the upright means including a pair of laterally spaced uprights with means defining in each upright a respective aperture, the apertures proportioned for holding the ends of the leveller bars, means defining in each upright a lateral slot with a lip at the lower outboard portion thereof for holding the ends of the axle of the spindle; a base extending forwardly from the pedestal for receiving said an adding machine with a tape having a first side and a reverse side, with the tape first side upward and the tape extending rearwardly and upwardly from said an adding machine through the horizontal guide structure and then downwardly and around the front of the spindle assembly; a knob for rotating the spindle assembly and storing the tape upon the roll with the reverse side of the tape outward, and the reversing rewinder being provided with means for preventing accidental detachment of the spindle assembly in that the side plates are circular and the combined dimension of a side plate radius and the radius of the axle of the spindle exceeds the dimension from the slot lip to the leveller bars and prevents spindle disengagement from said upwardly opening slots.