Abstract: A changeable display includes a sheet containing a number of joined frames, each having a display on opposite sides. The sheet is wound on a pair of take-up rollers having parallel axes separated by one frame. A separate idler roller for each take-up roller is arranged so a nip is formed between each idler roller and its associated take-up roller. A motor-clutch arrangement selectively drives one of the take-up roller to transfer the sheet between the take-up rollers. Each idler roller is urged toward the periphery of the wound material on its associated take-up roller while the sheet is being transferred between the take-up rollers to maintain a constant separation nip between each idler roller and the periphery of the sheet on each take-up roller. A housing for the sheet, rollers and motor-clutch pair of includes a pair of windows on opposite sides of the sheet.

Abstract: A foot to be cleaned is placed on a treadle in a housing. In response to depression of the treadle, a bellows is pressurized causing a foot cleaning solution to be dispensed from the bellows to a conduit. A port in the conduit is positioned above a pair of horizontally disposed, rotatable brushes that are located beyond the forward end of the treadle. In response to the treadle being depressed by the heel of the foot, the bellows is compressed and the solution is dispensed through the port onto the foot via an obstructed flow path. The brushes are positioned so that the toes of the foot being cleaned can be inserted through a gap between the brushes. The gap is approximately horizontally aligned with the upper surface of the treadle.