Improved Illuminated Advertisements.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improved Illuminated Advertisements.
ANDREW DARGAVEL, 56, Chesilton Road, Fulham, London, Engraver, do hereby
declare the nature of this invention to be as follows:-
may
I take a kaleidoscope and throw the beam of a strong light through the same.
I may then interpose between the kaleidoscope and a focussing lens a definite
advertisement the whole being focussed upon a screen then by revolving the
kaleidoscope various patterns will be shown while the advertisement may remain
stationary or both the advertisement and kaleidoscope may be made to revolve or
any combination may be produced as desired. With this object in view
take an electric are light or other light and focuss its rays so as to throw a-
preferably parallel beam of light through the kaleidoscope or I may produce the
same effect in any other well known way. I may then mount the kaleidscope in
such a manner as to make it revolve either by clockwork or an electric motor or
any other suitable manner at any desired speed or with intervals of motion and
intervals of rest I may also mount the advertisement so as to make it revolve or
alter in a similar manner either independently of or conjointly with the kaleido-
scope and I may place the advertisement either in front of or behind the kaleido-
scope or I may have the advertisement made permanently upon the screen then
by focussing the images produced by the combined advertisement and kaleido-
scope upon a suitable screen and turning the kaleidoscope I produce an ever
varying background to the advertisement. The kaleidoscope may be constructed
in the ordinary manner or with such modifications as may seem advisable or I
may place between two screens a number of transparent coloured figures or any
other suitable devices such as a combination of several advertisements.
Dated this 6th day of February 1899
ANDREW DARGAVEL.
I, ANDREW DARGAVEL, of 51, Drayton Gardens, South Kensington, London,
S.W., Engraver, formerly of 56, Chesilton Road, Fulham, London, S.W., 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 follow-
ing statement:―
This invention relates to certain improvements in and relating to the pro-
duction and exhibition of advertisements or advertising signs the object being to
produce various and automatically changing designs, patterns, devices, or borders
Prive SI

page_text: in colours in combination with advertisements upon the same screen and simul-
taneously.
In carrying the invention into effect there is to be employed a projecting
lens and lantern A in combination with a kaleidoscope K and a suitable screen B
on which to project the desired representation.
The illuminant employed may be either an electric arc lamp, an electric
incandescent lamp, an acetylene gas lamp, L or other well known and suitable
illuminant.
The advertisement may either be a part of the representation to be thrown upon
the screen or may be fixed on the screen, or form part of the screen either fixed or
revolving or may consist of a number of advertisements alternating on the screen.
A slide S containing broken glass, jewels, advertising devices, or any suitable
objects may be interposed between the illuminant and the kaleidoscope K with
the object of producing designs, patterns, devices or borders on the projected
representation.
This slide is made to revolve in order to obtain the required effects either by
hand or by any approved motor, such as clockwork or electricity, at any desired
speed or with intervals of motion and intervals of rest.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
1. The novel method of producing constantly changing and ever varying
designs, patterns, devices or borders in colours, for advertising purposes sub-
stantially as described.
2. In the production, presentation or exhibition of advertisements and the like
a kaleidoscope in combination with an illuminating lantern, a lens and a pro-
jection screen.
3. Advertising devices constructed, arranged, and adapted to operate in con-
junction with a kaleidoscope substantially as herein described.
Dated 140 441
£11000
ANDREW DARGAVEL.