Year: 1886

page_text: Date of Application, 17th June, 1886.
Complete Left, 10th Mar., 1887.
Complete Accepted, 15th Apr., 1887.
I, HERBERT JOHN HADDAN, of 67 Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention, to be as follows:-
The present invention has for its object the production of metallic drawings or
designs on metal objects and surfaces without necessitating any etching, engraving
or inlaying process.
For this purpose, on the well cleaned metallic surface to be decorated according to
this invention a drawing or design is produced by means of an insulating ink or mass.
This drawing may be produced either by hand or by a mechanical means, for instance
by a printing process. The insulating ink employed for the drawing may consist of
copal, dammar, shellac, asphaltum, rubber, colophany or different other resins, either
used singly or in mixtures of two or more of these, with or without addition of mineral,
animal or vegetable fat, in any desirable solution and of any desirable intensity or
concentration. The insulating mass employed for the mechanical reproduction or
printing of the drawing may also consist either of mineral, animal or vegetable fat
alone or of any desirable mixture of these.
In general it is of little importance, which insulating material is to be employed, if
the same has only the quality of being capable of being employed as drawing ink or
printing mass without being injured by the metallurgic batli.

page_text: After production of the drawing the object is brought into an electro plating or
other metal plating bath, where a metallic precipitate is formed covering all parts of
the metal surface and only leaving the drawing free, so that after the withdrawal
of the object from the bath and removal of the insulating ink or mass the drawing
will appear in the original metal.
Metals especially adapted for the decoration with a metallic drawing as well as for
the production of the metallurgic precipitate are the following: gold, platina, silver,
cobalt, nickel, copper, tin and the alloys of these.
Thus many combinations of drawings and ornaments may be attained in one, two or
more metals by successive insulation and metallic coatings.
Dated this 17th dow of Luna 1806

page_text: An Improved Process for Producing Metallic Drawings or Designs
and Ornaments of all Kinds on Metallic Surfaces.
I, HERBERT JOHN HADDAN, of 67, Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention, a communication to me from
abroad by Jobann von Chelmicki, of Warsaw in the Empire of Russia, Manufacturer,
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
The present invention has for its object the production of metallic drawings or
designs on metal objects and surfaces without necessitating any etching, engraving
or inlaying process.
For this purpose on the well cleaned metallic surface to be decorated according to
this invention a drawing or design is produced by means of an insulating ink or mass.
This drawing may be produced either by hand or by mechanical means, by a printing
process for instance..
The insulating ink employed for the drawing may consist of copal, dammar, shellac,
asphalt, rubber, colophany or different other resins either used singly or in mixtures
of two or more of these with or without addition of mineral, animal or vegetable fat
or oil in any desirablo solution and of any desirable intensity or concentration. The
insulating mass employed for the mechanical reproduction or printing of the drawing
may also consist either of mineral, animal or vegetable fat alone or of any desirable
mixture of these.
In general it is of little importance what insulating material is employed if the
same has only the quality of being capable of being employed as drawing or printing
ink without being injured by the metallurgic bath.
After production of the drawing the object is brought into an electro plating or
other metal plating bath where a metallic deposit is formed upon the object covering
all free parts of the metal surface and only leaving the drawing free so that after the
withdrawal of the object from the bath and removal of the insulating ink or mass the
drawing will appear in the original metal on a ground .or surface of the deposited
metal.
Metals especially adapted both for the decoration with a metallic drawing as well as
for the production of the metallic deposit are the following: gold, platinum, silver,
cobalt, nickel, copper, tin and the alloys of these.
Thus many combinations of drawings and ornaments may be attained in one, two or
more metals by successive insulation and metallic deposits."
In some cases the following process may be used for the production of a drawing in
two metals, to wit:
The metal surface to be decorated is covered with one or two platings of a metal
and on or upon these the full drawing and ornament is produced in the manner
described. Then the free part of the surface is covered in the manner described with

page_text: a second or third metal. After this has been done the insulating ink or mass is
removed from certain parts of the drawing and the object is subjected to the action of
an acid, by which the metal of the exposed part of the drawing is dissolved. The
process may be more clearly explained by the following example:
The object to be decorated is first gilt and then covered with nickel. On or upon
the layer of nickel is produced the drawing by means of insulating ink or mass
and the plate is then covered with a deposit of silver. The insulating layer is then
removed from such parts of the drawing which are intended to appear in gold (when
finished) and the object is subjected to the action of an acid capable of dissolving
nickel. This dissolves the exposed nickel parts of the drawing and the gold beneath
this appears.
After removal of the whole insulating layer the drawing appears in two metals
namely, gold and nickel or a ground or surface of silver.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, I declare that what I claim is :-
The process of producing designs and the like on metal plates, consisting in
drawing or printing said design on the plate with an insulating ink and causing a
deposit or deposits of a metal or metals to be formed upon the portions of such plates
not so insulated substantially as set forth.