Display device

Claim 1

A display device comprising, a generally stationary frame having a pair of spaced-apart end casIng portions and wall portions extending between said end casing portions to maintain said end casing portions in said spaced relationship, a shaft centrally located within said frame and extending between said end casing portions, each end of said shaft being rotatably journaled in said casing portions for rotation thereto, a pair of rotatable discs each mounted on said shaft adjacent one of said casing end portions, each of said discs having a plurality of apertures located in a circle concentric to the rotation of said shaft, a plurality of display cards positioned for rotation about the axis of said shaft so that any two of said cards can be displayed simultaneously at an angle to each other with their adjacent edges in closely spaced relationship, each of said cards having one projecting pivot member in a different one of said apertures in each of said disc, torsion means for subjecting each of said pivot members to a torsional stress, stop means located on said frame adjacent the axis of rotation and in the path of movement of said cards so as to arrest the latter in a display position, and drive means for imparting rotation to said shaft and maintaining said shaft in a stressed condition generally transparent wall portions on said frame extending between said casing end portions and wall portions so as to provide a substantially closed housing construction adapted to shield said cards when utilizing said device for outdoor display purposes, and wherein said frame includes venting means to prevent air pressure buildup within said device during rotation of said display cards.