AN IMPROVED MODE OF MAKING COLOURED IMPRESSIONS ON TIN PLATE AND OTHER METALS
Year: 1875

page_text: LETTERS PATENT to Julien Guéneux, Lithographer, and Edouard
Normand, Merchant, of B. de Strasbourg, 23, at Paris, for the
• Invention of "AN IMPROVED MODE OF MAKING COLOURED IMPRESSIONS
ON TIN PLATE AND OTHER METALS."
Sealed the 11th February 1876, and dated the 11th September 1875.
PROVISIONAL SPECIFICATION left by the said Julien Guéneux and
Edouard Normand at the Office of the Commissioners of Patents,
with their Petition, on the 11th September 1875.
We, JULIEN GUÉNEUX, Lithographer, and EDOUARD. NORMAND,
Merchant, of B. de Strasbourg, 23, at Paris, do hereby declare the
nature of the said Invention for "AN IMPROVED MODE OF MAKING COLOURED
IMPRESSIONS ON TIN PLATE AND OTHER METALS," to be as follows:-
Our Invention relates to the production of coloured impressions of
designs, trade marks, or other subjects upon tin, copper, zinc, iron, or
other metallic plates, by means of lithography or chromo-lithography.
We effect this by laying on the metallic surface by means of a leather
faced roller a coating of a paste of any desired shade to serve as a bed on
which a lithographic impression can be taken, or several such impressions
in different colours, in the usual moist manner of lithographic printing

page_text: on cardboard, porcelain, and the like. After coating the plate it may
be baked to fix the bed, and the baking may be repeated after each
successive impression. Such baking is especially_advantageous_if_the_
plates are intended to make cases or boxes which have to be subjected
to boiling, in which case the baking ought to be effected at a temperature
of about 260° Fahr.
The paste forming the bed may consist of various materials, such as
paper pulp, kaolin, baryta, or zinc white, or sulphate of lead, according
to the various effects desired to be produced. These materials are
intimately mixed with suitable varnishes compounded with driers.
The paste is evenly laid on the metal by means of a leather roller, and
forms a bed like porcelain or other glazed papers, adhering firmly to the
metal and presenting a surface which is impressible like paper or card-
board, and can be printed or embossed in a similar manner. After the
one or more impressions are taken the surface is varnished to render
the design indelible, and the sheets thus treated can be employed to
form boxes, cans, and other articles of like character..
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Julien Guéneux and Edouard -Normand in the
Great Seal Patent Office on the 15th February 1876.
TO ALL TO WHOM THESE-PRESENTS SHALL COME, we, JULIEN
GUÉNEUX, Lithographer, and EDOUARD NORMAND, Merchant, of Bч. de
Strasbourg, 23, at Paris, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of September, in the
year of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and suc-
cessors; give and grant unto us, the said Julien Guéneux and Edouard
Normand, Her special license, that we, the said Julien Guéneux and
Edouard Normand, our executors, administrators, and assigns, or such
others as we, the said Julien Guéneux and Edouard Normand, our
executors, administrators, and assigns, should at any time agree with
and no others, from time to time and at all times thereafter during thọ
term therein expressed, should and lawfully might make, use, exercise,

page_text: and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "AN IMPROVED
MODE OF MAKING COLOURED IMPRESSIONS ON TIN PLATE AND OTHER METALS,"
upon the condition (amongst others) that we, the said Julien Guéneux
and Edouard Normand, our executors or administrators, by an instru-
ment in writing under our or their hands and seals, or under the hand
and seal of one of us or them, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal Patont
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that we, the said Julien Guéneux and Edouard
Normand, do hereby declare the nature of the said Invention, and in
what manner the samo is to be performed, to be particularly described
and ascertained in and by the following statement thereof, that is to
say:
Our Invention relates to the production of coloured impressions of
designs, trade marks, or other subjects upon tin, copper, zinc, iron, or
other metallic plates, by means of lithography or chromo-lithography.
We effect this by laying on the metallic surface by means of a leather
faced roller a coating of a paste of any desired shade to serve as a bed
on which a lithographic impression can be taken, or several such
impressions in different colours, in the usual moist manner of litho-
graphic printing on cardboard, porcelain, and the like. After coating
the plate it may be baked to fix the bed, and the baking may be
repeated after. cach successive impression. Such baking is especially
advantageous if the plates are intended to make cases or boxes which
have to be subjected to boiling, in which case the baking ought to be
effected at a temperature of about 260° Fahr.
The paste forming the bed may consist of various materials, such as
paper pulp, kaolin, baryta, or zinc white, or sulphate of lead, according
to the various effects desired to be produced. These materials are
ultimately mixed with suitable varnishes compounded with, driers.
The paste is evenly laid on the metal by means of a leather roller, and
forms a bed like porcelain or other glazed papers, adhering firmly to
the metal and presenting a surface which is impressible like paper or
After
cardboard, and can be printed or embossed in a similar manner.
the one or more impressions are taken the surface is varnished to render

page_text: the design indelible, and the sheets thus treated can be employed to
form boxes, cans, and other articles of like character.
The following compounds will be found suitable-for-producing-the-
before-described mineral coating of any desired colour :-
For a coating of white colour 53 parts of oil varnish, 2 parts of a
siccative or drier, 5 parts of paste of wood, 10 parts of kaolin, 25 parts
of white silver, and 5 parts of white lead.
.
For a coating of blue colour, 57 parts of oil varnish, 3 parts of a
siccative or drier, 5 parts of paste of wood, 10 parts of kaolin, and 25
parts of blue of pearls or earsten.
For a coating of red colour, 43 parts of oil varnish, 2 parts of a
siccative or drier, 5 parts of paste of wood, 15 parts of kaolin, and 35
parts of vermillion.
For a coating of gold colour, 70 parts of oil varnish, 4 parts of a
siccative or drier, 3 parts of paste of wood, 3 parts of kaolin, and 20 parts.
of carth of sienna or Juscan.
Having thus described the nature of our Invention, and in what
manner the same is to be performed, wo claim, the before-described
method of producing coloured impressions on metal plates by first
laying upon the metallic surface a coating of a mineral paste of any
desired colour, upon which one or more lithographic impressions in one
or more colours is or are then made.
In witness whereof, we, the said Julien Guéneux and Edouard-
'Normand, have hercunto set our hands and seals, this Twelfth
day of February, in the year of our Lord One thousand eight
hundred and seventy-six.
Witness.
CHARLES ARMENGAUD, jeune,
Civil Engineer,
(L.S.)
JULIEN GUENEUX.
EDOUARD NORMAND. (L.S.)
Bd. de Strasbourg, No. 23,
à Paris.