An Improved Process for Depositing Metal on Glass, Porcelain, and other similar Ware.
Year: 1889

page_text: Date of Application, 9th May, 1889
Complete Specification Left, 1st Feb, 1890-Accepted, 19th Apr., 1890
PROVISIONAL SPECIFICATION.
An Improved Process for Depositing Metal on Glass, Porcelain, and
other similar Ware.
We, OSCAR PIERRE ERARD of 46 Unett Street Birmingham in the County of
Warwick Glass Decorator and BENJAMIN JOHN ROUND of 9 and 10 Northampton
Street Birmingham in the County of Warwick Electro-plater and Gilder do hereby
declare the nature of our said invention to be as follows.-
Our invention has for its object an improved process for depositing metal on glass
by which means we are enabled to deposit gold silver copper and other metals upon
glass porcelain china earthen, and any other similar ware for ornamental and
decorative purposes in a simple and effective manner the ornamentation being deposited
either in outline or a body or raised or incised or of any desired shape or form.
In addition to the above advantages the metal when deposited in a body forms a base
upon which any delicate or substantial ornament may be soldered and which at
the same time forms a first class strengthener to delicate glass forms thereby preventing
them from being so readily broken
In carrying out our new process we form a flux which consists of 7 parts of
calcined borax 3 parts of sand preferably "Fontainbleau" 4 parts of oxide of lead,
I part of nitrate of potash a part of phosphate of lime, and 2 parts of white arsenic
the whole being melted together to form a flux which after washing is ground into
a powder Although this particular composition and proportion of parts is best suited
to our purpose we do not confine ourselves to the exact proportions or quantities
mentioned. The aforementioned powder is then mixed preferably with silver in
the proportion of 10 parts of silver to 4 parts of flux powder and is afterwards
ground together so as to effect a thorough mixture.
I
This is then formed into a wash by means of being mixed with turpentine
which wash is applied by means of a brush over the particular parts of the article
which are required to be covered with the deposit so as to form the required design.
may
however powder on the flux separately afterwards fixing it by the silver or
other wash. The article is then burnt in a kıln and after being thoroughly cleaned
19 placed in a solution of the particular metal required to be deposited which
deposit is effected by the aid of a dynamo or any cell battery.
In case of raised or incised ornamentation being required it may either be
formed by the article being first prepared with the ordinary raised paste known to
the trade or the metal may be engraved after it has been deposited on the flat
glass.
.
1 1
1
1000
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.
COMPLETE SPECIFICATION.
An Improved Process for Depositing Metal on Glass, Porcelain, and
other similar Ware.
We, OSCAR PIERRE ERARD of 46 Unett Street Birmingham in the County of
Warwick, Glass Decorator and BENJAMIN JOHN ROUND of 9 and 10 Northampton
Street Birmingham in the County of Warwick, Electro-plater and Gilder do
hereby declare the nature of our said invention and in what manner the same is to
be performed to be particularly described and ascertained in & by the following
statement:-
Our invention has for its object an improved process for depositing metal on

page_text: glass by which means we are enabled to deposit gold, silver copper and other
metals upon glass porcelain, china, earthen and any other similar ware for ornamental
and decorative purposes in a simple and effective manner the ornamentation being
deposited either in ouline or a body or raised or incised or of any desired shape
or form.
In addition to the above advantages the metal when deposited in a body
forms a base upon which any delicate or substantial ornament may be soldered and
which at the same time forms a first class strengthener to delicate glass forms thereby
preventing them from being so readily broken.
In carrying out our new process we form a flux which consists of 7 parts of
calcined borax parts of sand preferably "Fontainbleau" 4 parts of oxide of lead
1 part of nitrate of potash part of phosphate of lime and 2 parts of white
arsenic the whole being melted together to form a flux which after washing is ground
into a powder Although this particular composition & proportion of parts is best
suited to our purpose we do not confine ourselves to the exact proportions or quantities
mentioned The afore-mentioned powder is then mixed preferably with silver in the
proportion of 10 parts of silver to 4 parts of flux powder and is afterwards
ground together so as to effect a thorough mixture. This is then formed into a wash
by means of being mixed with turpentine which wash is applied by means of a
brush over the particular parts of the article which are required to be covered with
the deposit so as to form the required design. I may however powder on the
flux separately afterwards fixing it by the silver or other wash. The article is
then burnt in a kiln and after being thoroughly cleaned is placed in a solution of
the particular metal required to be deposited which deposit is effected by the aid
of a dynamo or any cell battery.
In case of raised or incised ornamentation being required it may either be formed
by the article being first prepared with the ordinary raised paste known to the
trade or the metal may be engraved after it has been deposited on the flat glass.
In order that our invention may be clearly understood and more easily
carried into practice we have appended hereunto a double sized sheet of drawings
upon which we have illustrated several examples of our ornamentation which will be
sufficient to enable any practical person to apply the same or similar to the great
variety of articles and materials for which it is suitable.
.
Figure 1 is a view of the vase B ornamented with a spray of leaves & flowers A
which are deposited upon the flat glass or china by the process described and is
relieved by the stems of the leaves & petal a¹ of the flowers being engraved. The
band around the neck and a' are also ornamented by engraving the latter being
turned-over-ar the top so as to form-a-finish-to-the mouth of the neck.
Figure 2 is a view of the jar or vase E which is ornamented partly with the
outlines and partly in body e upon the flat glass the portions e³ being engraved.
The foot e of the vase is also covered and ornamented by engraving.
Figure 3 is a view of the ordinary drinking glass F which is prepared in bas
relief with raised paste the metal being afterwards deposited upon same in a body as
before described the metal being also turned under at the bottom f¹ to form a
strengthening base to the glass Of course it will be obvious that there is practically
no limit to articles of the glass porcelain, & earthenware class upon which this
ornamentation may be deposited or in the varied design which may be applied to
fulfil the various requirements in the case of any such articles.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improved process for depositing metal on glass porcelain and other similar
ware consisting of the composition and treatment substantially as herein set forth.
Dated this 31st day of January 1890
ABADAR DAD TED'
GEORGE BARKER,
77. Colmore Row, Birmingham, Agent for Applicants.