An Improved Apparatus for Automatically Exhibiting and Changing Advertisements.
Year: 1889

page_text: COMPLETE SPECIFICATION.
An Improved Apparatus for Automatically Exhibiting and Changing
Advertisements.
We HERMANN SCHMIDT and WILHELM ANGER Manufacturers of the International
Office for the automatic exhibition of advertisements, Passage 40-42 Cologne on the
Rhine in the Empire of Germany do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
The invention hereinafter described relates to an apparatus for automatically
exhibiting and changing advertisements by means of which two advertisements are
exhibited simultaneously to the public gaze. In the said apparatus the sheets cards
boards or other surfaces carry the advertisements on both sides and are likewise
oxhibited on the two sides that is first on one side and then on the other.
The invention is shown in the accompanying drawing.
Figure 1 is a front view of our improved apparatus for exhibiting and changing
advertisements.
Figure 2 is a longitudinal section of the same.
Figures 3 and 4 show respectively in elevation and in cross section the inner
mechanism of the apparatus.
The toothed wheel c is rotated by the clockwork d and is keyed upon the shaft a.
The latter carries at a given distance from one another two discs b. The frames or
advertisement holders e are suspended to the discs b in such a manner that the hooks f
grip from the outside within the discs for which purpose the said discs b are provided
at a given distance from their axis of rotation with holes g. The frames & have a
cross bar which serves at the same time for fastening the advertisements and for
supporting the advertisement boards.
The advertisements are stretched over the frames e in the manner shown in dotted
lines or in any other suitable manner.
The shaft a is horizontal or thereabouts and is rotated by the clockwork d in the
direction of the arrow I (see Figures 2 and 4).

page_text: The number of holes in the discs
apparatus.
depends upon the size of the exhibiting
The frames e are covered on both sides with advertisements.
When the automatic exhibiting apparatus is rotated in the direction of the arrow I
the different frames which are first arranged to hang down freely are laid as shown
in Figure 2 with their cross bar h against the periphery of the discs and are
subsequently raised in the position shown in Figure 2. They enter in this manner in
front of the exhibiting case i.
The discs continuing to rotate the frames which were in a vertical position
marked 1 in Figure 2 fall downwardly turn upon the hooks f in the holes of the
discs and exhibit now their reverse side.
•
By a corresponding but multiplied arrangement of such advertisement frames upon
the periphery of the discs bb there will be still two advertisements exhibited in
Figure 2 and marked 1 and 2.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
An apparatus for exhibiting advertisements which presents constantly two
advertisement boards to the public gaze consisting of the two discs bb set in a slow
rotary motion by clockwork and the frames e arranged to move upon the discs band
resting when the discs are being turned with their cross bars against the periphery
of the discs & or hanging freely down substantially in the manner and for the purposes
hereinbefore described and shown in the drawing hereunto annexed.
Dattu
this 7th day of March 1889.
TONGUE & BIRKBECK,
34, Southampton Buildings, London, W.C.,
Agents for the Patentees.