IMPROVEMENTS IN COPYING AND MULTIPLYING APPARATUSES
Year: 1876

page_text: LETTERS PATENT to Carl Pieper, Civil Engineer, Dresden, Saxony, for the
Invention of "IMPROVEMENTS IN COPYING AND MULTIPLYING APPARATUSES."
A communication from George Wilhelm Moritz Bauer, residing at Vienna,
Austria.
Sealed the 28th October 1876, and dated the 28th April 1876.
PROVISIONAL SPECIFICATION left by the said Carl Pieper at the Office of
the Commissioners of Patents on the 28th April 1876.
CARL PIEPER, Civil Engineer, Dresden, Saxony.
AND MULTIPLYING APPARATUSES." A communication.
"IMPROVEMENTS IN COPYING
The object of my Invention is to obtain in a much easier way copies of writings,
designs, notes, and the like in different colors from any paper. I use for this purpose
a chemical composition forming a uniform mass and easily dissolving when used.
This substance is composed, for the violet color, of aniline, pulverized chalk, tallow,
stearine or Japan wax, and a little alcohol; for the red color, of fuchsine, pulverized
chalk, tallow, stearine or Japan wax, and a little alcohol; and for the green color,
of green methyl aniline, pulverized chalk, tallow, stearine or Japan wax, and a
little alcohol. These ingredients are to be mixed until they form a uniforin mass.
The composition is mixed in the following proportious :-
9 For the Violet Color

page_text: of 800 grammes of green methyl aniline.
400
600
200
"J
"
"
pulverized chalk.
tallow.
stearine or Japan wax and the necessary quantity
of alcohol.
When one of these compositions is to be used, I spread with a brush over a sheet
of zinc, iron, glass, stone, inarble, or other hard material having a smooth but not
polished surface; the thickness of this layer will be regulated according to the
number of copies to be made. When the layer of color is dry the surface can be
polished by means of glass, stone, marble, or other hard material. The sheet of
metal, stone, and the like, being readily prepared in this way will be covered by a
sheet of silk paper or other paper lightly glued, and the design or writing to be
multiplied is effected in a dry way on the paper by means of a blunt pen or by
means of a needle with rounded point.
The paper intended to receive the copy should be moistened with pure water, or
better with a solution of 3 grammes of gun tragant in one litre of water. The
original is placed upon such moistened paper and pressed lightly with the hand,
both sheets being left together for a few seconds.
In this way the copy is obtained and the process can be repeated in the same
way up to a hundred times.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Carl Pieper in the Great Seal Patent Office on the 28th October 1876.
"
CARL PIEPER, Civil Engineer, Dresden, Saxony. IMPROVEMENTS IN COPYING
AND MULTIPLYING APPARATUSES." A communication from George Wilhelm Moritz
Bauer, residing at Vienna, Austria.
The object of my Invention is to obtain in a much easier way copies of writings,
designs, notes, etc., in different colours from any paper. I use for this purpose a
chemical composition forming a uniform mass and easily dissolving when used.
This substance is composed, for the violet colour, of aniline, pulverised chalk, tallow,
stearine or Japan wax, and a little alcohol; for the red colour, of fuchsine, pulverised
chalk, tallow, stearine or Japan wax, and a little alcohol; and for the green colour,
of green methyl aniline, pulverised chalk, tallow, stearine or Japan wax, and a
little alcohol. These ingredients are to be mixed until thoy form a uniform mass.
The composition is mixed in the following proportions :—
a. For the Violet Colour
of 950 gramines of aniline.
400
750
"
"
50
27
pulverised chalk.
tallow.
stearine or Japan wax, with as much alcohol as i
necessary to moisten the whole.
Then a second mass is prepared
of 200 grammes of aniline.
100
pulverised chalk.
"
150
tallow.
"
20
"
stearine or Japan wax and a little alcohol.
These two compositions are mixed together until they form a uniform mass.
b. For the Red Colour

page_text: of 800 grammes of green methyl aniline.
400
600
"
"
200
"
pulverised chalk.
tallow.
stearine or Japan wax and the necessary quantity
of alcohol.
When one of these compositions is to be used I spread it with a brush over a
sheet of zinc, iron, glass, stone, marble, or other hard material, having a smooth but
not polished surface; the thickness of this layer will be regulated according to the
number of copies to be made. When the layer of colour is dry the surface can bo
polished by means of glass, stone, marble, or other hard material. The sheet of
metal, stone, etc., being readily prepared in this way will be covered by a sheet of
silk paper or other paper lightly glued, and tho design or writing to be inultiplied
is effected in a dry way on this paper by means of a blunt pen or by means of a
needle with rounded point.
The
The paper intended to receive the copy should be moistened with pure water, or
better with a solution of 3 grammes of gum tragant in one litre of water.
original is placed upon such moistened paper and pressed lightly with the hand,
both sheets being left together for a few seconds. In this way the required copy is
obtained, and the process can be repeated in the same way up to a hundred times.
Having now described the nature of my Invention and the manner to use the
same or carry it into effect, I would observe in conclusion that I consider to be
novel and original, and therefore claim as my Invention, the composition of the
ingredients as above indicated, especially for and to the purpose of copying and
multiplying writings, designs, etc.
In witness whereof, I, the said Carl Pieper, have hereunto set my hand and
seal, this Twenty-ninth day of September, in the year of our Lord One
thousand eight hundred and seventy-six.
CARL PIEPER. (L.S.)