Improvements in Treating China, Earthenware, and other like Surfaces for Various Useful and Ornamental purposes.
Year: 1891

page_text: Date of Application, 8th Oct., 1891
Complete Specification Left, &th July, 1892-Accepted, 18th Aug., 1892
PROVISIONAL SPECIFICATION. ·
Improvements in Treating China, Earthenware, and other like
Surfaces for Various Useful and Ornamental purposes.
We, JOHN SLATER, of Waterloo Road, Burslem, in the County of Stafford,
Potter, and JOHN JAMES ROYLE, of Dalham Works, Great Bridgewater Street,
Manchester, in the County of Lancaster, Engineer, do hereby declare the nature
of our said invention to be as follows:-
•
The object of this invention is the deposition of metals such as copper, or silver,
on china, earthenware, and other like surfaces for the purpose of strengthening and
rendering practically unbreakable certain articles or portions which have hitherto
been very liable to breakage; and also to ornament such surfaces in a variety of
ways by combining metallic deposits with the usual decoration processes, and so
obtain richer effects.
In carrying out this invention we take the following ingredients more or
JOHN G. WILSON,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Treating China, Earthenware, and other like
Surfaces for Various Useful and Ornamental Purposes.
We, JOHN SLATER of Waterloo Road, Burslem, in the County of Stafford,
Potter, and JOHN JAMES ROYLE of Dalhan Works, Great Bridgewater Street,
Manchester, in the County of Lancaster, Engineer, do hereby declare the nature
of our said invention and in what manner the same is t. be performed to be
particularly described and ascertained in and by the following statement :-
The object of this invention is the deposition of metal such as copper or silver
on china, earthenware and other like surfaces for the purpose of strengthening and
PD037

page_text: rendering practically unbreakable certain articles or portions which have hitherto
been very liable to breakage; and also to ornament such surfaces in a variety of
ways by combining metallic deposits with the usual decoration processes and so
obtain richer effects.
In carrying out this invention, we take the following ingredients more or
less, viz.-
Nitrate of silver
Ammonia chloride of mercury
Bromide of soda
Oxide of bismuth
120 parts by weight.
20
do.
30
do.
do.
10
and triturate them in a mortar and afterwards mix the same with water and
mucilage to such consistency as to be most readily applied to the surface herein
before mentioned (by preference in the biscuit state) and we afterwards fire the
'article in a kilo.
The article so treated is then placed in a depositing bath, such as is used in
electro-plating, and the usual electrical connections being made it will be found
that the prepared surface readily receives the metal which; adheres thereto with
considerable tenacity. We prefer to deposit a substantial coat of -copper and
afterwards deposit the richer metals.
Besides affording a method of greatly enriching the decoration of certain articles
our invention enables us to strengthen portions of china and earthenware articles,
such as spouts and handles, which have hitherto been very liable to breakage, by
depositing a thick coating of (by preference) copper on such parts and afterwards
treat with silver and so obtain a practically unbreakable portion with an enriched
effect.
It will be obvious that our invention is applicable in this manner to a variety of
useful purposes.
Having thus particularly described and ascertained the nature of our said inven-
tion we wish it to be understood that we do not confine ourselves to the precise
proportions or quantities of the ingredients in our preparation but what we claim
as our invention, is.—
The hereinbefore described treatment of earthenware, china and other like
surfaces for the purposes specified.
Dated this 7th day of Inle 1892
Dated this 7th day of Inly 1892
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent.¨