Improved Method of Changing the Colours of Letters, Figures, Words, or Devices in Showcards and the like for Advertising Purposes.
Year: 1899

page_text: Date of Application, 20th Apr., 1899
Complete Specification Left, 20th Jan., 1900-Accepted, 20th Apr., 1900
PROVISIONAL SPECIFICATION.
Improved Method of Changing the Colours of Letters, Figures, Words,
or Devices in Showcards and the like for Advertising Purposes.
I, HORATIO THOMAS BAXTER, of Number Eighty-seven, Commercial Street,
Dundee, Solicitor, do hereby declare the nature of this invention to be as follows:
My invention consists of an improved method of automatically or mechanically
changing the colours of the letters figures words or devices in show cards, sign
boards and the like for advertising purposes. I carry my invention into effect
by the use of one or more screens of cardboard, wood, metal or other suitable
material perforated in the form of the letters figures words or devices, as may
be desired, behind or before or between which perforated screen or screens are
placed one or more sheet or sheets of any suitable material, either translucent
or opaque, coloured in parts or in whole, as may be desired. I cause the said
screen or screens or the said sheet or sheets of coloured material or both to move
at intervals or continuously, as may be desired, in such a way that the positions
of the said perforations are changed relatively to the positions of the said sheet
or sheets of coloured material, so as to cause a change in the colour of the said
letters figures words or devices, and for the purpose of such movement I employ
clockwork, windmill electricity gas, water, steam or other motive power.
Dated this Nineteenth day of April Eighteen Hundred and Ninety-nine.
Improved Method of Changing the Colours of Letters, Figures, Words,
or Devices in Showcards and the like for Advertising Purposes.
I, HORATIO THOMAS BAXTER, of Number Eighty-seven, Commercial Street,
Dundee, in the County of Forfar, Solicitor, 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:-
My invention consists of an improved method of automatically or mechanically
changing the colours of the letters, figures, words, or devices in show cards, sign
boards, and the like for advertising purposes.
I carry my invention into effect by the use of one or more screens (of which a a
on the accompanying drawing are examples) of card board, wood, metal, or other
suitable material, perforated in the form of the letters, figures, words or devices,
as may be desired, (and of which perforations c c c c on the accompanying drawing
FD S17

page_text: are examples) behind or between which perforated screen or screens are placed
one or more sheet or sheets of any suitable material either translucent or opaque
coloured with two or more colours in parts or in whole, as may be desired, and
of which bb bb on the accompanying drawing is an example. In the case of the
use of a sheet or sheets of translucent material it may be placed in front of the
perforated screen or screens. I cause the said screen or screens or the said sheet
or sheets of coloured material or both to move at intervals or continuously, as
may be desired, in such a way that the positions of the said perforations are
changed relatively to the position of the colours of the said sheet or sheets of
coloured material, so as to cause a change in the colour of the said letters, figures,
words or devices, and for the purpose of such movement I employ clockwork
windmill, gas, water, steam, electricity, or other motive power.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:
The use of one or more screens as described, behind or before or between which
are placed one or more sheets of translucent or oqaque coloured material, which
screen or screens or the said sheet or sheets of coloured material or both are, by
clockwork, windmill, gas, water, steam, electricity, or other motive power, caused
to be moved at intervals or continuously in such a way that the positions of
the said perforations are changed relatively to the position of the said coloured
material so as to cause a change in the colour of the said letters, figures, words,
or devices as and for the purposes described.
Dated this Nineteenth day of January Nineteen Hundred