Improvements in Pictures, Advertisements, and the like, and in Means for Displaying the same.
Year: 1893

page_text: Date of Application, 9th Feb., 1893-Accepted, 1st Apr., 1893
COMPLETE SPECIFICATION.
Improvements in Pictures, Advertisements, and the like, and in
Means for Displaying the same.
I, ARNOLD CARL FRAENKEL, of Werderstreet 3, Berlin in the Empire of
Germany, Merchant, 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 present invention relates to a device by means of which the prisms on which
parts of the pictures are pasted can be turned around their axes all at the same
time and to the same extent so that after each operation a different picture is
presented to view.
I will now describe my invention with reference to the accompanying drawings
which show back view and cross section of the device.
The prismatic bars P (in the case shown there are 10 three-sided bars) are
provided with pivots at both ends and which are so mounted in a frame made of
preferably two wooden rods or cheeks B and two metal bars D, that in a given
position, one side of each of the bars P in conjunction with all the others forms a
substantially continuous surface. A picture is pasted on this surface and is cut to
correspond with the faces of the prisms. The whole of the prisms are then turned
in the same direction (in the case under notice 120°) so that a second substantially
continuous surface appears and which can be provided with a picture in the same
way as before.
The further turning of the prisms causes the third faces to appear at the front
of the device so that another or third picture may be mounted on these faces. The
exact and at all parts, equal turning of the prisms is obtained preferably by a
rack Z provided with a button for gripping, engaging with a spur-wheel T mounted
on the pivot of each prism P these being preferably finely toothed. This rack
extends through the two cheeks B and may be fixed in any desired position by a
spring bolt or equivalent not shown in the drawing.
The device may be mounted in a suitable frame A.
Besides a picture any other similar object can be treated in the same way as, for
instance, writing or advertisements. The outer frame must leave sufficient space
over the picture surface to allow of the prisms being freely turned.
circumference of the spur wheels T need not engage with the
necessary to provide the whole of said circumference with teeth.
or equivalent can be used if desired.
As the whole
rack Z, it is not
Spur segments
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is,
1. In apparatus such as described the employment of a number of prisms having
on each face a portion of a picture or other design which in conjunction with the
picture portions ou the faces of the other prisms constitutes a complete picture or
design substantially as described.
2. In apparatus such as described the combination with a frame of revolvable
prisms such as Peach bearing a portion of a picture or device substantially as
described and illustrated in the accompanying drawings.
3. In apparatus such as described the combination with a frame and revolvable
prisms such as P of a rack and wheels or segments such as Z T substantially as
described and illustrated in the accompanying drawings.
4. The combination and arrangement of parts constituting the complete apparatus

page_text: for displaying pictures advertisements and the like substantially as described nd
illustrated in the accompanying drawings.
Dated this 9th day of February 1893.
W. P. THOMPSON & BOULT
Agents for the Applicant.