ADVERTIZING-AND-INFORMATION BOARD

摘要

The board is used for effecting external and internaladvertizing, information and demonstration activities. It hastwice as big area of the advertizing-and-information mateiralwhich can be better observed and more accurately fixed. The boardconsists of a supporting structure (1) having open front and rearwall on the lower end of which there is an electric motor (2) onshaft (3) on which first gear (4) is mounted, meshed to secondgear (5) fitted on first driving roller (6). Wheel (5) is meshedto third gear (7) inserted onto a second driving roller (8). Gear(5) and roller (6) are identical to wheel (7) and roller (8),respectively, so that they form two symmetrically positionedroller complexes (16 & 24). Fixation holes (26) are machined alongthe whole length of the two peripheral sides of each of bands (9 &17) including guiding pins (25) which are fitted at both ends ofeach of the rollers and are at least four each.4 claims, 2 figures/!