(57) Device for display and possible collection of sheet-shaped information carriers The
device comprises firstly a bottom plate (10) prodded with a display aperture (20)
intended to be positioned on e.g. the picturepane of an overhead projector, and secondly
on two opposite sides of the display aperture (20) two ring mechanisms (20, 24) for
retaining the informatin carriers, which preferably have double perforations along
two opposite edges. Preferably, the ring mechanisms (22, 24) are coupled together
with a transfer device (34, 38, 40) adapted to be actuated by means of an operating
handle (48) for alternately opening and closing the two ring mechanism (22, 24). If
desired, the bottom part (10) is provided in conventional manner with back parts (16,
18) and binder covers (12, 14) in order at the same time to constitute a collection
binder for the inserted sheet-shaped information carriers.
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