Improvements in Apparatus for Displaying Luminous Advertisements.
Year: 1899

page_text: Date of Application, 1st May, 1899
Complete Specification Left, 30th Jan., 1900-Accepted, 24th Mar., 1900
PROVIDIUNAL SPECIFICATION.
Improvements in Apparatus for Displaying Luminous
Advertisements.
1, WILLIAM NICHOLAS ARMSTRONG, of No. 22, Leabon Street. West Ham.
London, E., Builder, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in apparatus for displaying luminous
advertisements, and is an improvement upon a former invention of mine for which
Letters Patent have been applied for, No. 5306 Anno Domini 1899.
In the said former invention I provide a case having a rear compartment for the
reception of an illuminating medium by means of which advertisements displayed
on a movable slide are thrown onto an opaque or semi-opaque screen at the front
of the case.
In my present invention 1 provide means whereby various prismatic or other
colors are thrown upon the front opaque or semi-opaque display screen in such a
manner as to cause such screen to be suffused with various rain bow-like color
simultaneously with the displayment of the advertisements. thereby greatly
enhancing the attractiveness of the apparatus as an advertising medium.
In the present invention I provide a rectangular square or other suitably shaped
frame, having side extensions or wings adapted to loosely fit within grooves in
the case of the displaying apparatus in or to allow of such frame having a free
sliding movement. The vertical sides of the frame have parallel or opposing
grooves formed in same for the reception of slides formed of opalescent or other
glass or transparent material. Each of these said slides is of a different prismatic
or other color, or one slide may be tinted with several colors either blended or
distinct, one from the other.
The said slides may be formed of glass or other transparent material, either
colored in the manufacture or subsequently colored in any suitable manner, or
such slides may be provided with strips of transparent colored material such as
Glacier decoration used for imitating stained glass.
In operation the frame is fitted within the case of the displaying apparatus.
immediately behind the shutter thereof, and any suitable number of the colored
slides inserted within the grooves of such frame. the illuminating medium
situated within the apparatus causing the prismatic or other colors on such slides
to be projected upon the displaying screen in such a manner as to suffuse same
with graduated tints having an attractive rainbow effect.
Dated this 1st dov af Vor 1900
HUGHES. SON & Co..
38, Chancery Lane, London, W.C.. For the Applicant.

page_text: Improvements in Apparatus for Displaying Luminous
Advertisements.
1, WILLIAM NICHOLAS ARMSTRONG: of No. 22, Leubon Street, West Ham.
London, E., Builder, 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 : -
-
This invention relates to improvements in apparatus for displaying luminous
advertisements, and is an improvement upon a former invention of mine for
which I have obtained Letters Patent No. 5300, Anno Domini 1899.
In the said former invention I provide a case having a rear compartment for the
reception of an illuminating medium by means of which advertisements displayed
on a movable slide are thrown onto an opaque or semi-opaque screen at the front
of the case.
In my present invention provide means whereby various prismatic or other
colors are thrown upon the front opaque or semi-opaque display screen in such a
manner as to cause such screen to be suffused with various rain-bow like colors
simultaneously with the displayment of the advertisements, thereby greatly
enhancing the attractiveness of the apparatus as an advertising medium.
In order that this my said invention may be the more readily understood and
carried into practical effect, reference is to be had to the accompanying sheet of
illustrative drawings and the letters and figures of reference marked thereon,
that is to say.
Fig. 1 is an elevational view of the device employ for diffusing the advertise-
ment display screen with colours, and Fig. 2 a perspective view of same.
In the drawings, a represents a rectangular square or other suitably shaped
frame. having side extensions or wings adapted to loosely fit within grooves in
the case of the displaying apparatus in order to allow of such frame having a free
sliding movement.
The vertical sides of the frame a have parallel and opposing grooves e formed in
sume for the reception of slides & formed of opalescent or other glass or trans-
parent material.
Each of these said slides is of a different prismatic or other colour, or one
slide may be tinted with several colours either blended or distinct, one from the
other.
The said slides of may be formed of glass or other transparent material, either
coloured in the manufacture or subsequently coloured in any suitable manner,
or such slides may be provided with stripes of transparent coloured material such
as Glacier decoration used for imitating stained glass.
".
In aperation the frame a is fitted within the case of the displaying apparatus.
immediately behind the shutter thereof, and any suitable number of the coloured
slides inserted within the grooves of such frame, the illuminating medium
situated within the apparatus causing the prismatic or other colours on such
slides to be projected upon the displaying screen in such a manner as to suffuse
same with graduated tints having an attractive rainbow effect.
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
Ist. In apparatus for displaying luminous advertisements, the frame a having
extended sides and parallel and opposing grooves in the rear of the sides

page_text: of the said frame, transparent coloured slides being movably inserted within the
said grooves in the frame, substantially as described and as illustrated by the
drawings.
2nd. In apparatus for displaying luminous advertisements, comprising a case
having a front display screen and an illuminating medium for projecting adver-
tising matter from a movable slide onto said display screen; the frame holding
a number of removable transparent slides of different colours, said frame being
removably inserted in the case in front of the illuminating medium, whereby the
colours of the slides are caused to be projected on to the display screen either
simultaneously or in a graduated manner, substantially as specified.
Dated this 30th day of January 1900.
WILLIAM NICHOLAS ARMSTRONG.
22. Leabon Street, West Ham. Applicant.