| 摘要 |
A scrolling display system suitable for large public gatherings. This display comprises at least one display element itself comprising: a frame comprising a display window; two horizontal and parallel end rollers affixed by their extremities to the frame; a rectangular sheet of fabric carrying illustrations and having its ends wound around the end rollers; at least one horizontal guiding roller affixed to the frame and positioned to guide the fabric sheet and fold its path between the two end rollers; at least one horizontal weight roller positioned to maintain tension on the fabric; a programmable electrical motor configured to produce a predetermined amount of angular displacement; driving belts connecting the motor to the end rollers, to transmit the angular displacement to the end rollers. Display of desired illustration is achieved by scrolling the fabric sheet until the illustration faces the display window.
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