Method of Producing Light Prints or Designs on Dark Ground, or for Producing Coloured Prints by Means of the Printing Press.
Year: 1893

page_text: Date of Application, 13th Mar., 1893
Complete Specification Left, 12th Dec., 1893-Accepted, 10th Feb.,
1894
PROVISIONAL SPECIFICATION.
Method of Producing Light Prints or Designs on Dark Ground, or
for Producing Coloured Prints by Means of the Printing Press.
1, CHRISTIAN VOGEL Jr., Manufacturer, of Gernrode a Harz (Gerostrasse 301)
in the German Empire, do hereby declare the nature of this invention to be as
follows:-
Advertisement boards, placards and similar objects are frequently produced in
such a manner, that the print or design appears in light colour on dark ground,
which is usually done by means of lithography or by means of specially made
printing blocks, which are expensive.
The present invention has for its object, to produce the same effect in a simple
manner by means of the ordinary printing appliances, such as printing types and
presses.
For this purpose I produce the print or design in light coloured or white printer's
ink, or other suitably coloured ink prepared with oil, fat, or resin; subsequently I
cover the surface with water colour, by means of rollers or other suitable devices.
As water will not mix with oil, fat, or resin, the water colour will only adhere to
those portions of the surface, which have not previously received an impression.
The same method may be used for producing decorative effects on paper in
various colours, the moveable types being arranged and combined according to the
desired effect.
Dated this 13th day of March 1893.
FAIRFAX & WETTER,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Method of Producing Light Prints or Designs on Dark Ground, or
for Producing Coloured Prints by Means of the Printing Press.
I, CHRISTIAN VOGEL Jr., Manufacturer, of Gernrode a/Harz (Gerastrasse 301)
in the German Empire, 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 :-
Advertisement boards, placards and similar objects are frequently produced in
such a manner, that the print or design appears in light colour on dark ground,
which is usually done by means of lithography or by means of specially made
printing blocks, which are expensive.
The present invention has for its object, to produce the same effect in a simpl..
manner by means of the ordinary printing appliances, such as printing types and
presses.
For this purpose I produce on the paper or similar base the print or design in
light coloured or white printer's ink or other suitably coloured ink prepared with
oil, fat or resin, subsequently I cover the surface with water colour by means of
rollers or other suitable devices. As water will not mix with oil, fat, or resin, th
water colour will only adhere to those portions of the surface, which have not
previously received an impression.
The same method may be used for producing decorative effects on paper in
various colours, without the use of expensive rollers as hitherto employed for such

page_text: purposes, the moveable types being arranged and combined according to the
desired effect.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The method of producing light prints or designs on dark ground by means of
ordinary printing types and presses, which consists in producing the print or design
with light coloured or white printer's ink, or other suitably coloured fatty or
resinous ink, and subsequently covering the surface with water colour, substantially
as described.
Dated this 12th day of December 1893.
FAIRFAX & WETTER,
433, Strand, London, Agents.