Improvements in Apparatus for Advertising Purposes.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Advertising Purposes. `
I, HERMANN WOINKE, of 33, Kurfürstenstrasse, Gross-Lichterfelde, in the
Empire of Germany, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide means for exhibiting by means of
magic-lantern like or similar projection a succession of advertisement sentences
with or without accompanying illustration, these sentences being shown separately
or in groups in succession to one another and each sentence be gradually shown
by letter or word until the whole of the sentence is visible whereupon after
desired interval of time the sentence disappears each part thereof disappearing
simultaneously.
As an example of means for performing this invention I may use a skeleton
drum the periphery of which carries the aforesaid sentences or devices each in a
line or lines parallel with the axis and written or otherwise made transparently
or on transparent back ground so as to be illuminated by suitable lighting
devices within the drum.
The drum is intermittently revolved to bring each line or group of lines in
turn to the projecting devices and in order that the sentence there may become
gradually visible means may be used to cause successive illumination of the
lighting devices behind or a movable shutter or series of shutters may be drawn
along or otherwise caused to open so as to successively expose the words, letters,
or parts of the sentence or advertisement in position at the time until the whole is
exposed whereupon a partial rotary movement of the drum may carry the whole
from view and substitute the next to be in its turn gradually brought to view.
The shutter or shutters or equivalent devices of the advertisement which has.
passed out of view may be returned to place by a spring or other means.
1 1
March 1899
HERBERT HADDAN & Co.,
Agents to Applicant.
Improvements in Apparatus for Advertising Purposes.
I, HERMANN WOLNKE, of 33, Kurfürstenstrasse, Gross-Lichterfelde, in the
Empire of Germany, Manufacturer, 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 object of this invention is to provide means for exhibiting by means of

page_text: magic lantern like or similar projection a succession of advertisement sentences
with or without accompanying illustration, these sentences being shown separately
or in groups in succession to one another and each sentence be gradually shown
by letter or word until the whole of the sentence is visible whereupon after
desired interval of time the sentence disappears each part thereof disappearing
simultaneously.
The essential feature of this invention consists in the method of exhibiting
these advertisements whereby the single successive characters or illustrations of
the advertising sentences are one after the other exhibited in a suitable size
until the whole sentence is on view which disappears after a certain time where-
upon the next of the following sentence is exhibited in the same manner.
Several characters etc. can be exhibited simultaneously if desired.
As an example of means for performing this invention as an apparatus is
shown in the annexed drawing and described herein, but this simply constructed
apparatus can be altered in many ways without abandoning the before mentioned
original idea by which the best and most effective advertising is obtained
because the apparatus arranged on the roof of a building of a frequented
place etc., showing characters in the described manner by means of magic lantern
or the like lighting device on a transparent sheet or screen provokes involuntarily
the curiosity of the passers by to ascertain and await the completion of the
sentence.
Fig. 1 of the drawing shows the apparatus in front view before the beginning
of the exhibition of an advertisement sentence. Fig. 2 shows a section on the
line II of Fig. 1. Fig. 3 shows the apparatus after the exhibition of an
advertisement sentence, only one sentence being shown and the others omitted.
Fig. 4 is a side view of Fig. 3 in the direction of the arrow.
The two movable disks B B arranged on the stationary shafts A A¹ are pro-
vided on their periphery with holes C for screws, so that both can be joined
by means of bars or rails D of sheet iron or any other suitable material forming
thus a kind of skeleton drum whereon the number of tracks correspond with the
number of sentences to be exhibited. In the so formed tracks, frames E of
sheet-iron or the like are inserted and fastened, and in these frames are fastened
the single letters or illustrations of the sentences which can be easily exchanged,
and which may consist of pierced metal plates, painted glass plates or any suitable
material. A suitable number of blind, that is, non transparent plates are used
for properly spacing the characters of the desired sentence. Above these letter
frames between the rails D) are introduced shutters F of suitable length with
projecting pins G, teeth or the like.
These shutters cover the letters and when the apparatus is put into operation
by means of a driving device of any construction, the driving wheel H works
into the pins G and the shutter F of the sentence to be just exhibited is pushed
along the track till the whole line of characters is exhibited on the transparent
sheet or screen by the projecting device. The sentence remains visible for a
certain time, namely until the shutter has been pushed with its nose J (Fig. 2)
against a ratchet dog arranged in a suitable manner at the end of the drum
whereby the whole drum is turned so far that the exhibited sentence disappears
and in its place the next track with the character frame therein commences to
appear when its shutter in covering position is put in operation. The mechanism
effecting this is as follows:-
is a stationary spring mechanism, the driving wheel of which gears with a
toothed wheel m joined with the drum, so that the drum has continually the
inclination to turn in the direction of the arrow as in Figs. 2 and 4 but is pre-
vented from so doing by a ratchet wheel n with which a dog o engages. The
drum is held in such position that the glass plate E comes exactly central to
the lens. The shutter F is engaged by its pins or teeth G with the driving
wheel H. As the same is now moved sideways its nose pushes at a certain
moment against the side of the dog o pivoted at 2 and moves the same out of

page_text: engagement with the ratchet wheel n so that the drum is then turned by the
spring mechanism k for so far until the next tooth of the ratchet wheel n abuts
against the dog o influenced by a spring 9 by which means the drum is held
until the next shutter F engaging the driving wheel H again releases the dog o.
Of course each shutter could also be provided with a disengaging lever or the
like to set free the spring mechanism k for a certain period and to again stop
its action.
By use of non-transparent plates at the commencement of each line of charac-
ters, for a certain time nothing is visible and then this new sentence is exhibited
in the same manner as the former while the former shutter now out of gear with
the driving wheel is thrown back into its original position by means of a spring
or in like manner, whereby the whole procedure is repeated as often as the
construction of the apparatus allows of.
The projecting apparatus consists of a condensing lens arranged inside the
drum in such a manner that the single glass plates always come between the
condenser and the objective which is arranged outside the drum. The glass
plates come in such a manner in front of the condenser so that the central point
of the complete sentence or device is central with the same.
It is obvious that the characters on the glass plates may be so close together
and of such small size as to be properly projected by means of the condenser and
objective on to the transparent screen placed at a suitable distance from the
objective.
The arrangement is shown schematically in Fig. 2, L2 indicating the condenser,
L' the objective, and K the illuminating source which may consist of an incan-
descent or other electric lamp and may be provided with a reflector L. The
lenses L L are not shown in the drawing in true relation of scale with one
another or with the surrounding parts of the apparatus.
If for instance the greatest length of the inscription on the glass plate is 150
to 160 m.m., the diameter of the condenser inside the drum would be 180 m.m.
so that the whole inscription taken by the condenser is thrown by the objective,
chosen according to the desired enlargement on the screen.
The detailed arrangement of the projecting device is not shown in the drawing
as the construction of projecting apparatus is generally known. The drawing
has therefore been limited principally to the actual construction and manner of
working of the apparatus itself in order to show that the drum after the repre-
sentation of a sentence is finished is turned from the shutter effecting this so far
round its axle that the following shutter, being above comes into gear with the
driving device and thus the next or second sentence appears which until now
was covered by this shutter as already indicated; the preceding shutter being
now out of action, is brought back into its position covering the sentence by a
spring operated by tension or compression.
Also sentences of several lines can be exhibited in which case the letters of
the different lines are arranged exactly, the one underneath the other on the
same plate. Also the illuminating device arranged within the drum can be
extinguished after a certain time automatically by means of the driving wheel.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. Apparatus for the representation of one or several advertisement sentences
O with or without pictorial representations, whereby single letters or groups of
letters or pictorial representations of or belonging to the advertisement sentence
are projected after or below one another on a sheet, screen or the like in suitable
size by a projecting apparatus until the whole sentence in composition is visible.
and whereby such sentence or composition is visible, and whereby such sentence
6 or composition after a period of visibility is extinguished and replaced by the
following sentence or composition similarly brought into view.

page_text: 2. The combination with a projecting device, and a screen for receiving the
projection, of means for holding series of transparent signs between the projecting
device and screen and for successively uncovering said signs of each series
until the series is uncovered, and thereupon replacing the series by another.
3. The combination with a projecting device and a screen, of a drum having
on its periphery parallel tracks frames in said tracks, transparent signs in said
frames, shutters movable longitudinally of said tracks and having projections, a
wheel adapted to engage said projections to move said shutters and means for
revolving the drum at the end of the course of the shutter.
1. Dated this 29th day of June 1899.
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, W.C., London.