A New or Improved Method of or Process for Producing Letter Signs and Pictorial Effects for Advertisements and other purposes.
Year: 1893

page_text: Date of Application, 15th Dec., 1893
Complete Specification Left, 11th Sept., 1894-Accepted, 13th Oct., 1894
PROVISIONAL SPECIFICATION.
A New or Improved Method of or Process for Producing Letter
Signs and Pictorial Effects for Advertisements and other
purposes.
I, JOHN ALEXANDER NESS of 37 Derby Street in the County of the City of
Glasgow, Lithographer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object the inexpensive application to transparent
surfaces such as gelatine, glass, celluloid or the like of multi-colored printings for
advertisements and other purposes.
In practising the invention instead of printing direct upon the back of the
transparent surface a printing of any desired number of colors is made upon a
tissue or transparent or translucent paper or film or upon a paper or film to be
afterwards made transparent or translucent. This printed matter is applied to a
surface of gelatine, celluloid or the like by "squeegeeing" it down upon a polished
or flat plate which has been flooded with the gelatine or other like transparent
liquid. Before the application of gelatine or like material the said plate may be
coated with collodion, or other like material and this coating protects the gelatinous
or similar surface.
"
When the gelatine, celluloid or like surface, to which the said printed matter
has been applied, is dried, a layer of suitable mucilage is applied to it so as to hold
"bronze" of any desired color or colors to the back of the print, which "bronze'
color shews through the printed or unprinted parts of the paper as desired to the
front accordingly as the same is opaque or transparent. After the application of
the "bronze there is laid on a backing of millboard, straw-board or the like.
When the whole production is dry it is stripped from the base plate, the collodion
or like material interposed between the said plate and the transparent gelatinous
or similar surface acting as before stated as a varnish to protect the same.
"'
In practising the invention on glass surfaces the printed matter prepared upon
paper of the nature herein before mentioned is applied direct to the back of the
plate and "bronzed as described the "bronzing " being suitably protected.
"
Dated this 14th day of December 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
A New or Improved Method of or Process for Producing Letter
Signs and Pictorial Effects for Advertisements and other
purposes.
I, JOHN ALEXANDER NESS, of 37 Derby Street, in the County of the City of
Glasgow, Lithographer, 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 has for its object the inexpensive application to transparent
surfaces such as gelatine, glass celluloid or the like of multi-colored printings for
advertisements and other purposes. In practising the invention instead of printing
Pin d

page_text: direct upon the back of the transparent surface a printing of any desired number
of colors is made upon a tissue or transparent or translucent paper or film or upon
a paper or film to be afterwards made transparent or translucent. This printed
matter is applied to a surface of gelatine, celluloid or the like by "squeegeeing" it
down upon a polished or flat plate which has been flooded with the gelatine or
other like transparent liquid. Before the application of gelatine or like material
the said plate is or may be coated with collodion or other like material in
order subsequently to serve as a protective coating for the gelatinous or similar
surface.
When the gelatine, celluloid or like surface to which the said printed matter has
been applied, is dried, a layer of suitable mucilage is applied to it so as to hold
"bronze" of any desired color or colors to the back of the print, which "bronze"
color shows through the printed or unprinted parts of the paper as desired to the
front accordingly as the same is opaque or transparent. After the application of
the "bronze there is laid on a backing of millboard, straw-board or the like.
When the whole production is dry it is stripped from the base plate, the collodion
or like material interposed between the said plate and the transparent gelatinous
or similar surface acting as before stated as a varnish to protect the same.
"
"
In practising the invention on glass surfaces the advertisement or picture is
applied by any printing process such as chromolithography to the surface of
transparent or translucent paper or paper capable of being rendered translucent by
subsequent immersion in or coating with copal varnish or other substance, and the
"transparency so formed is squeegeed into optical contact with the glass its
adhesion thereto being ensured by suitably coating the glass or the "transparency'
or both with any clear adhesive mixture. Bronze powder is then applied over the
whole back or rear surface of the " transparency and a protecting sheet or
coating laid over it. The "bronze" shows through those parts only of the
" transparency "that are not covered in the printing process with opaque coloring
matter and the print being in optical contact with the glass forms an effective
advertisement or pictorial show tablet equal or superior in appearance to tablets
produced by hand painting on the rear surface of glass, whilst it is adapted for
reproduction in quantities at slight expense.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is ;-
1. The method of producing letter signs and pictorial effects for advertisements
and other purposes consisting in forming a printed "transparency" applying to its
outer surface a gelatinous or other transparent coating, and bronzing its rear
surface so that the "bronze" shows through the clear portions of the "transparency,'
substantially as described.
"
2. The method of producing letter signs and pictorial effects on glass consisting
in forming a printed "transparency," placing it in optical contact with glass, and
bronzing its rear surface so that the "bronze" shows through the clear portions of
the "
transparency," substantially as described.
Dated this 10th day of September 1894.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.