IMPROVEMENTS IN PRODUCING ON PORCELAIN AND OTHER CERAMIC PRODUCTS, ON GLASS, VENETIAN ENAMELS AND ON METALLIC SURFACES, DESIGNS IN COLGRS, AND IN GOLD, SILVER, AND OTHER METALS
Year: 1861

page_text: LETTERS PATENT to Joseph Jacob, of Brünn, in the Empire of Austria,
but at present residing in Golden Square (W.) London, in the County
of Middlesex, for the Invention of "IMPROVEMENTS IN PRODUCING ON
PORCELAIN AND OTHER CERAMIC PRODUCTS, ON GLASS, VENETIAN ENAMELS
AND ON METALLIC SURFACES, DESIGNS IN COLGRS, AND IN GOLD, SILVER, AND
OTHER METALS."A communication from abroad by Franz Kosch, of
Vienna, in the Empire of Austria.
Sealed the 7th February 1862, and dated the 13th August 1861.
PROVISIONAL SPECIFICATION left by the said Joseph Jacob at the Office
of the Commissioners of Patents, with his Petition, on the 13th
August 1861.
I, JOSEPH JACOB, of Brünn, in the Empire of Austria, but at present
residing in Golden Square (W.) London, in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
PRODUCING ON PORCELAIN AND OTHER CERAMIC PRODUCTS. ON GLASS, VENETIAN
ENAMELS AND ON METALLIC SURFACES. DESIGNS IN COLORS, AND IN GOLD, SILVER,
AND OTHER METALS," (a communication to me from abroad by Franz Kosch, of
Vienna, in the Empire of Austria,) to be as follows:-
The said improvements consist in decorating or ornamenting porcelain,
china, and other ceramic products, glass, Venetian enamels, and metals, with
designs in colors and in gold, silver, and other metals, the said designs being
[Price 8d.]

page_text: As
first printed on paper from stone in the lithographic press, and thereupon
drawn off or transferred upon the article or object to be ornamented.
usual, in chromo-lithographic or color printing, the various colors and metals
are printed on the paper in succession, each from a separate stone. The
paper, which is prepared to prevent shrinking or stretching, is coated with a
varnish composed of gum aud casein on the side on which it is to be printed.
The prepared metals and colors, as well as the vitreous mass or flux, are in all
cases reduced to the finest powder or dust before being used, aud the said
metals or colors and flux are either separately or together, as the case may be,
mixed or ground with varnish into a paste, which is spread upon a roller as in
ordinary printing, and from the roller transferred upon the stone. On ceramic
products and enamels the decoration cau be produced in two distinct ways,
namely, upon the glaze and under the glaze. For decorating with colors upon
the glaze, the enamel flux suitable for the desired color and reduced to
powder, but not fused, is ground into a paste with varnish spread upon the
roller,and transferred upon the stone, from which it is printed on the paper in
the lithographic press. The impression so produced is then, by means of a
soft brush coated or covered with the corresponding metallic oxide or color
in a powdered state. Decorations in precious metals, and particularly in gold,
may also be made according to this method, the design being first printed on
the paper with varnish alone or with a composition of varnish with flux, which
is then dusted or covered with the preparation of gold or other metal by
means of a soft brush. In most cases, however, and especially in all colors
of the oxides of iron, as black and green, the colours ground into a paste with
varnish and with the suitable enamel flux are at once spread upon the roller.
In this case, as in the former, the enamel flux is not fused, but it is a com-
pound of its various ingredients, which is ground into paste, and used as
described. For decorating under the glaze, the colors or metallic oxides arc
likewise ground into a paste with varnish spread on the roller, and transferred
on the stone, from which they are printed on the paper in the lithographic
press. When the colors and metals are dry the paper is coated with a
solution of resin, and when this latter is likewise dry, the paper is laid upon
and gently pressed against the article to be decorated. For decorating upon
the glaze, the object, before pressing the paper upon it, is first coated with an
adhesive resinous solution of turpentine and damar in oil of turpentine, and for
decorating under the glaze, the object is first coated with a weak solution of
shellac in alcohol, and then with the adhesive resinous solution. The object
or article is then placed in a vessel filled with water, where the paper will
become detached, the design remaining on the object, which is then dried and

page_text: baked in the usual way. Glass, dials, enamels, and venetian enamels,
as well as all objects made of or with a surface of gold, silver, copper,
brass, iron, or other metal are decorated in the manner described for
decorating on the glaze. The various colours and metals are burnt into the
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Jacob in the Great Seal Patent Office on the
13th February 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPHI
JACOB, of Brünn, in the Empire of Austria, but at present residing in Golden
Square (W.), London, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of August, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Joseph Jacob, Her special licence that I, the said Joseph Jacob, my
executors, administrators, and assigns, or such others as I, the said Joseph
Jacob, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN PRODUCING ON
PORCELAIN AND OTHER CERAMIC PRODUCTS, ON GLASS, VENETIAN ENAMELS, AND
ON METALLIC SURFACES, DESIGNS IN COLORS AND IN GOLD, SILVER, AND OTHER
METALS," (a communication to me from abroad by Franz Kosch, of Vienna,
in the Empire of Austria,) upon the condition (amongst others) that I, the
the said Joseph Jacob, my executors or administrators, by an instrument in
writing under ny, or their, or one of their hands and seals, 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 Patent Office within six calendar months next and
immediately after the date of the said Letters Pateni.
NOW KNOW YE, that J, the said Joseph Jacob, do hereby declare the
nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement:-

page_text: The said improvements consist in decorating or ornamenting porcelain,
china, and other ceramic products, glass, Venetian enamels, as also objects
made of or with a surface of metal, with designs in gold, silver, and other
metals, such designs being first printed on paper in the lithographic press, and
thereupon drawn off or transferred upon the article or object to be ornamented.
As usual in chromo-lithographic or color printing, the various colors aud
metals are printed on to the paper in succession, each from a separate stone,
the paper used for this purpose being prepared to prevent shrinking during
the operation of printing and transferring the design upon the object to be
ornamented. The prepared metals and prepared colors, as well as the vitreous
mass or flux are in all cases reduced to the finest powder or dust before being
used. On ceramic products and on enamels the ornamentation can be pro-
duced either upon the glaze or under the glaze. For producing decorations
upon the glaze in gold alone, or in silver alone, or in other metal, or in gold
and silver combined, or in gold or silver in conjunction with colors, or in colors
alone, the enamel flux reduced to powder is ground into a paste with varnish
spread upon the roller, and transferred upon the stone, from which it is
printed on to the paper in the lithographic press. The various impressions so
produced are then, by means of a soft brush, coated or covered with the cor-
responding colours, or with the gold or silver or other metal whichare to form
part of the intended ornamentation, such gold or silver or other metal or color
being in this case put on in the shape of powder, and not in the form of a
paste. In most cases, however, and especially in all the colors of the oxides
of iron, as black and green, the colors are ground each separately into a paste
with varnish and with the suitable enamel flux spread upon the roller and
transferred upon the stone, from which it is printed upou the paper. In this
case, as in the former one, the onamel flux is not fused, but is the compound
of its various ingredients, which is ground into a paste and used as described.
In like manner, gold and silver can be formed into paste with the suitable
enamel flux, and spread upon the roller. For decorating under the glaze, the
colors are likewise ground into a paste with varnish spread upon the roller,
and each separate color transferred upon its stone, and from these several
the complete design is in succession printed upon the paper in the lithographic
press. The printed colors, the gold, silver, or other metals having become
dry on the paper, the latter is coated with a varnish formed of a solution of
resin for protecting the design. When the designs so printed on the
are to be transferred upon the glazed ware, the latter is coated with an
adhesive resinous substance to cause the papers which are laid upon and
gently pressed against it to adhere to the ware. In this manner the
paper

page_text: entire design or pattern is in one single operation fixed upon the ware,
however simple or however elaborate such design or pattern may be, and
in the same manner a ground entirely of gold or of silver, or of a combi-
nation of gold and silver, relieved or unrelieved by designs or ornamentation
in colours. In decorating under the glaze the object under operation, before
the design is transferred or drawn off upon it is first coated with a weak
solution of shellac and alcohol, and after that with an adhesive resinous sub-
stance composed of turpentine and damar. The object or article thus pre-
pared, whether for decorating upon the glaze or under the glaze, is then
placed into a vessel filled with water, when the paper will become detached,
the design remaining on the object, which is then dried and burnt or baked
in the usual manner. Glass, dials, enamels, and Venetian enamels, as well
as object made of or with a surface of gold, silver, copper, brass, or other
suitable metal are decorated in the manner described for decorating on the
glaze. The various colors and metals are burnt into the objects to be
ornamented at a heat suitable to those objects.
Having now described the nature of the said Invention, which has been
communicated to me, and the manner in which the same is to be carried
into effect, I wish it to be understood that I do not claim the printing and
transferring on ware designs in one or more colors, and then baking the
colors into the ware, nor do I claim the printing and transferring on ware
of designs in colors in combination with gold or other metal, which are not
baked or burnt into the ware; but what I do claim, as the Invention to be
secured to me by the herein-before in part recited Letters Patent, is the
mode of ornamenting or decorating objects with gold, silver, or other metal,
either alone or in combination with colors, in one operation, and the baking
or burning such designs into the ware, as described.
In witness whereof, I, the said Joseph Jacob, have hereunto set my
hand and seal, this Thirteenth day of February, in the year of our
Lord One thousand eight hundred and sixty-two.
JOSEPH JACOB. (L.B.)