Improvements in Illuminated Advertising Devices.
Year: 1899

page_text: Date of Application, 17th Jan., 1899
Complete Specification Left, 17th Oct., 1899-Accepted, 18th Nov., 1899
Improvements in Illuminated Advertising Devices.
I, ELIAS BERNARD KOOPMAN, Manager, of 18 and 19, Great Windmill Street,
Piccadilly Circus, London, W., do hereby declare the nature of this invention to
be as follows: -
My invention relates to moving devices in which electric lamps are used to
illuminate and display advertisements, or in which opaque moving parts are
illuminated by reflected light.
My invention consists in a special form of advertising device, which has a
front plate carrying the advertisement: a second plate or reflector fixed
behind the first: and a series of fixed electric lights placed between
the two. Behind these plates is mounted a set of arms or a disc or
plate adapted to rotate on a central axis. On the end of each of these arms,
or at intervals on the edge of the disc, is mounted revolubly a set of arms having
a lamp mounted on each arm. On the end of each of these secondary spindles
carrying the lamps a disc is provided having rubber or other such material placed
round its edge, and adapted to bear on a ring or annulus which projects from
the back case of the device. When the set of arms or disc mounted on the
centrai spindle is rotated the small disc bearing on the ring or annulus is thereby
caused to rotate on its own axis, turning the small set of arms and lamps attached
to it. Provision is made for the leading in of the electric current to the moving
lamps. The front plate may be round or of other suitable shape, and it may have
the illuminated advertisement either opaque on a transparent ground, or trans-
parent on an opaque ground, as desired. The lamps on the rotating axis are
preferably of different colours, and are arranged in such a manner that one at least
of each set of lamps shall always be projecting beyond the edges of the front set
of plates, so that they produce a vari-coloured illumination in the annular space
outside the front plate when the device is rotated. This illumination may appear
as a series of points of light darting radially in and out from under the plate.
Rotated lamps of a similar character may be provided also in front of the
reflecting disc.
When it is desired to cause the lamps projecting at any time to he of the same
colour all round the ring, then the ring or annulus should be provided with teeth.
and the discs should be replaced by pinions, each having the same number of
teeth. The rotating parts may be driven in any suitable manner from an electric
or other motor.
D
1511 1
T
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.

page_text: Improvements in Illuminated Advertising Devi
I, ELIAS BERNARD KOOPMAN, of 18 and 19, Great Windmill Street, Piccadilly
Circus, London, 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 following statement:-
1
My invention relates to moving devices in which electric lamps are used to
illuminate and display advertisements.
My invention consists in a special form of advertising device, which has a
front plate carrying the advertisement, a second plate or reflector fixed
behind the first and a series of fixed electric lights placed between
the two. Behind these plates are mounted several sets of revolving arms
carrying lamps which can be seen in motion beyond the edges of the plates.
Referring now to the accompanying drawings illustrating my invention:-
Figure 1 is a front elevation of my apparatus.
Figure 2 is a cross section.
Figure 3 is a front elevation with the two front plates and the fixed electric
lamps removed.
is the front plate carrying the advertisement, and is the reflecting plate:.
both these plates are fixed, and have between them a number of fixed electric
lights c. Behind and mounted on a shaft is a disc or plate or set of arms e.
On the end of each of these arms, or at intervals on the edge of the disc, are
spindles each carrying at the front a set of arms g each bearing a lamp h and
at the back a disc of india-rubber or other such substance, which bears against
a ring or annulus 7 projecting from the back case of the apparatus. When the
disc or set of arms e is rotated, the small discs & bearing on the ring 7 rotate on
their own axes, turning the arms g and lamps h. Electric current is taken to the
disc or set of arms e by means of the insulated collector rings m and n and the
brushes and q in a well-known manner. A similar arrangement not shown
allows the current to pass to the arms g and lamps h.
The front plate a may be round or of other suitable shape, and it may have
the illuminated advertisement either opaque on a transparent ground, or trans-
parent on an opaque ground, as desired. The lamps h. are preferably of different
colours, and are arranged in such a manner that one at least of each set of lamps
shall always be projecting beyond the edges of the front set of plates, so that they
produce a vari-coloured illumination outside the front plate a when the disc or
set of arms e is rotated. e may be rotated by hand or by an electro-motor, or by
any other suitable means. The power may be applied to a shaft s which carries a
pulley which drives, by means of a band, the pulley which is rigidly attached
The illumination given by the lamps / may appear as a series of points of
light darting radially in and out from behind the plate.
to e.
When it is desired to cause the lamps projecting at any time to be of the same
colour all round the plate a, then the ring 7 should be provided with teeth, and
the friction discs k should be replaced by suitable pinions all having the same
number of teeth.
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 hereinbefore described apparatus for illuminating and displaying adver-
tisements, substantially as described with reference to the accompanying drawings.
2 In on
1
ast of

page_text: rotating lamps such as h producing a moving vari-coloured display of light sub-
stantially as described with reference to the accompanying drawings.
3. In an apparatus for illuminating and displaying advertisements, the com-
bination of a set of fixed electric lamps such as c in front of a reflecting plate for
illuminating the advertisement, with a set of rotating lamps such as h behind
the reflecting plate for producing a moving vari-coloured display of light, sub-
stantially as described with reference to the accompanying drawings.
Dated this 17th day of October 1899
MARKS & CLERK,
18, Southampton Buildings, London, W.C., Agents.