Year: 1886

page_text: I, RICHARD GUTHEIL, Lithographer, of Leipzig, in the kingdom of Saxony, do
hereby declare the nature of my 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 has for its object to obtain lithographs of a more intense tint or
colour, than those hitherto produced.
For this purpose I treat the lithographic stone in a special manner and employ
a specially prepared ink.
.
The stone is smoothed for drawing, and after having been carefully dried, it is
polished with fine dry Emery, whereby it assumes a smooth and hard surface. The
emery is then removed from the surface and the latter after being cleaned is
gummed, the gum layer being allowed to dry. The stone is now provided with
the design in the usual manner and tone or shading is given to the drawing, this.
is effected by using a specially prepared ink. This ink is painted in with a brush or
nen and consists of
I, RICHARD GUTHEIL, Lithographer, of Leipzig, in the kingdom of Saxony, do
hereby declare the nature of my 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 has for its object to obtain lithographs of a more intense tint or
colour, than those hitherto produced.
For this purpose I treat the lithographic stone in a special manner and employ
a specially prepared ink.
.
The stone is smoothed for drawing, and after having been carefully dried, it is
polisbed with fine dry Emery, whereby it assumes a smooth and hard surface. The
emery is then removed from the surface and the latter after being cleaned is
gummed, the gum layer being allowed to dry. The stone is now provided with
the design in the usual manner and tone or shading is given to the drawing, this.
is effected by using a specially prepared ink. This ink is painted in with a brush or
nen and consists of
Venetian Soap
Wax
Mastic
Shellac
44-2 parts
7.0
11.2
137
13.7
10-2
Venetian turpentine
Lampblack or soot
100 parts.
The ink is rubbed with water for use. The tone varies according to the amount.
of ink rubbed in the water or according to the manner in which it is painted with
a brush or pen. The tone may be improved by stippling. After the ink has dried,
the stone is first washed with water and is then covered with a little colour free of
turpentine, which is then removed from the unengraved and unshaded surfaces.
The stone is now ready for printing, which is effected in the usual manner.

page_text: 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. For producing a tone or shading on lithographic stone, the process consisting
in polishing the stone with dry emery, washing, drying, and gumming the stone,
and thereafter drawing on the stone and shading the drawing by painting with
an ink, rubbed with water and consisting of a mixture, substantially in the
proportions given, of Venetian Soap, Wax, Mastic, Shellac Venetian Turpentine
and soot or Lampblack-washing the stone with water after the ink has been
dried.
2. The ink composed of Venetian Soap Wax, Mastic, Shellac, Venetian Turpentine
and Lampblack substantially in the proportions described and for the purpose set
forth.