Card – picture – or sign exhibiting – Changing exhibitor – Motor operated
Patent
1987-01-22
1988-09-27
Mancene, Gene
Card, picture, or sign exhibiting
Changing exhibitor
Motor operated
40387, 40518, G09F 1118
Patent
active
047731761
ABSTRACT:
The display (12) comprises a band carrying a series of visual items of information and held taut between two rolls (5, 9) onto which it is rolled, the rolls being parallel to each other and rotatively mounted in a frame (1), and a synchronous driving mechanism (18) for the two rolls. The driving mechanism comprises a toothed belt or chain (21) driven by a motor (19) and cooperating with a first sprocket wheel (22) keyed on the first roll (5) and a second sprocket wheel (23) freely rotatable on the second roll (9) and connected to the latter by elastically yieldable means (25) for compensating for the tension of the band as a function of the variation in the diameter of the roll resulting from the rolling up of the band.
REFERENCES:
patent: 464901 (1891-12-01), Sheets
patent: 598673 (1898-02-01), Gearhart et al.
patent: 734982 (1903-07-01), Smith
patent: 1396553 (1921-11-01), Bovy
patent: 1430509 (1922-09-01), Jones
patent: 2736017 (1956-02-01), Marlowe et al.
patent: 3426461 (1969-02-01), Miller
patent: 3510973 (1970-05-01), Mazzocco
patent: 3631618 (1972-01-01), Habuka
patent: 3803582 (1974-04-01), McKee et al.
patent: 4110925 (1978-09-01), Strand
Contreras Wenceslao J.
Mancene Gene
World Acrilux S.A.
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