| 摘要 |
A display sign apparatus includes a stationary frame and a movable frame mounted therein for reciprocal lateral movement. One drive system is provided for moving the movable frame. Each of the stationary and movable frames has a plurality of elongated display sign elements mounted in a spaced relationship. Another drive system is provided for rotating each element about its longitudinal axis. The elongated display sign elements are movable between a first position wherein the elements are interposed with a side-by-side arrangement and a second position wherein the elements in the movable frame are laterally spaced from the elements mounted on the stationary frame.
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