Card – picture – or sign exhibiting – Changing exhibitor – Motor operated
Patent
1994-02-14
1996-02-27
Silbermann, Joanne
Card, picture, or sign exhibiting
Changing exhibitor
Motor operated
40518, G09F 1118
Patent
active
054938023
ABSTRACT:
A scroll displaying mechanism suitable for use in moving advertising displays, chart recorders and tape readers uses a pair of D.C. motors wired to operate under slightly different speed-controlling voltages in order to maintain the displayed part of the scroll between two rollers taut. A simple belt and pulley drive mechanism for each roller assures quiet and vibration-free operation. The viewing time between frame-advance and the scroll direction reversal are controlled by detection of different length markers positioned along one edge of the scroll. Also disclosed is a simple, easily assembled and disassembled display apparatus which allows both vertical and horizontal adjustment of the size of the viewing window frame.
REFERENCES:
patent: 2677967 (1954-05-01), Galbraith
patent: 2891325 (1959-06-01), Breuning
patent: 3479985 (1969-11-01), Morley
patent: 3510973 (1970-05-01), Mazzocco, Sr.
patent: 3726031 (1973-04-01), Singer
patent: 3829997 (1974-08-01), Singer
patent: 4040304 (1977-08-01), McCabe
patent: 4463792 (1984-08-01), Lukos
patent: 4862614 (1989-09-01), Shettleroe
Buchaca John D.
Charmasson Henri J. A.
Silbermann Joanne
LandOfFree
Scroll displaying device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scroll displaying device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scroll displaying device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1671045