Remote control price changing sign

Card – picture – or sign exhibiting – Changing exhibitor – Motor operated

Patent

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Details

40518, G09F 11295

Patent

active

047079380

ABSTRACT:
A large sign mounted high on a supporting pole, tower or building is provided with changeable figure sections. Each changeable figure section includes an upper motor driven roller and a lower motor driven roller and an elongate panel of flexible material having digits 0 to 9 thereon with opposite ends of the panel fixed to and rollable on the respective rollers. A three wire motor control system is provided for each changeable figure section that extends therefrom to the ground and on to a remote location with a two way switch where the operator can watch the sign changes he is making. This makes it easier and safer for a person to change letters and numbers on billboards that are dangerous and/or inaccessable to climb up on and work on particularly with a sign high in the air facing the elements.

REFERENCES:
patent: 1067483 (1913-07-01), Murphy
patent: 1283165 (1918-10-01), Hanigsman
patent: 1547033 (1925-07-01), Crawford
patent: 2095401 (1937-10-01), Smith
patent: 2563580 (1951-08-01), Clark
patent: 2935806 (1960-05-01), Young
patent: 3009275 (1961-11-01), Rosenberg
patent: 3582937 (1971-06-01), Ratcliffe
patent: 3616554 (1971-11-01), Singer
patent: 4373279 (1983-02-01), Abel

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