Publicity board with rotating prismatic members

Details Publicity board with rotating prismatic members Publicity board with rotating prismatic members

G - Physics

09

F

40/52

G09F 11/02 (2006.01)

Patent

CA 1275804

ABSTRACT A publicity board (1) provided with a plurality of rotatable prismatic members (4) mounted side-by-side, each being arranged to carry portions of publicity images on its faces (5), and further provided with a motor (8) for rotating the prismatic members (4) about their respective longitudinal axes. The motor (8) is coupled to the prismatic members (4) by means of an operating shaft (11) driven by the motor (8) and carrying a plurality of radial rods (28) such that they rotate, to each cooperate with respective appendices (15) extending radially from an end pivot (14) of each prismatic member (4), for the purpose of transmitting to this latter a rotation through an angle which is double the angle formed at the centre by each face of said prismatic member (4). (Figure 2).

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