Improved Methods of Treating the Vitreous Surfaces of Articles made of or from China, Earthenware, Glass, or the like Materials for Hermetically Joining same.
Year: 1893

page_text: Date of Application, 4th Nov., 1893
Complete Specification Left, 16th Feb., 1894-Accepted, 28th Apr., 1894 -
PROVISIONAL SPECIFICATION.
Improved Methods of Treating the Vitreous Surfaces of Articles
made of or from China, Earthenware, Glass, or the like Materials
for Hermetically Joining same.
We, Sir HENRY DOULTON Lambeth Pottery, Lambeth, County of Surrey,
Earthenware Manufacturer, and JOHN SLATER Waterloo Road, Burslem, Staffs,
Potter, do hereby declare the nature of this invention to be as follows.:-
This our invention has reference to improved methods of preparing the vitreous
surfaces of articles made of or from china, earthenware, glass or the like materials
for the purpose of enabling such prepared parts to be securely fastened or
hermetically joined.
In carrying our said invention into practice we prepare the vitreous surfaces of the
articles at the parts where it is desired to make a metallic connection by coating
such surfaces by using a camel hair brush or other suitable means with a similar
compound to that described in the Specification for which Letters Patent
were granted to the said John Slater on the 8th day of October 1891 and
numbered 17126, and consisting of nitrate of silver 120 parts, ammonia chloride of
mercury 20 parts, bromide of soda 30 parts, and oxide of bismuth 10 parts which
have been ground or rubbed by any suitable means to a fine powder and mixed
with water and a suitable mucilage, or we prepare such vitreous surfaces by coating
them with a compound made by mixing one drachm of bi-chloride of platinum
which has been well washed to eliminate the free acid, and then dry the same on a
licated slab, and while still warm we mix the same with one ounce of balsam of
sulphur and three ounces of spirit of turpentine which have been boiled together in
a sand bath to the consistency of cream, adding oil of turpentine thereto until the
proper glutinosity for applying or working with a camel hair brush or pencil has
been obtained.
The parts desired to be connected having been coated with this mixture are then
fired at a suitable temperate in an enamel kiln.
Although we have found the foregoing mixtures to be effective for preparing the
vitreous surfaces of articles to be metallically joined, we may use oxide of gold,
silver or platinum sponge or other similar metallic compounds which will in a
similar manner adhere to the vitreous surfaces of the articles to be united by
plumber's ordinary solder.
It will be obvious that the vitreous surfaces of articles prepared in the ways
hereinbefore described can be readily joined or hermetically sealed by means of
plumber's ordinary solder and tools, and will be found of great use in preserving
documents between sheets of glass or the like material, for connecting the metallic
and glass portions of aquaria, for effectually securing the lids of jars and similar
receptacles containing preserved fruit, vegetables and the like, and for hermetically
joining the vitreous surfaces, or metallic and vitreous surfaces of various articles."
Dated this 3rd day of November 1893.

page_text: COMPLETE SPECIFICATION.
Improved Methods of Treating the Vitreous Surfaces of Articles
made of or from China, Earthenware, Glass, or the like Materials
for Hermetically Joining same.
We, Sir HENRY DOULTON, Lambeth Pottery, Lambeth, County of Surrey,
Manufacturer, and JOHN SLATER Waterloo Road, Burslem, Staffordshire, Potter,
do hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:―
This our invention has reference to improved methods of preparing the vitreous
surfaces of articles such as are made of or from china, earthenware, glass or the
like materials, for the purpose of enabling such articles to be securely or hermetically
joined at the prepared parts.
To carry our said invention into practice we prepare the vitreous surfaces of
articles at the part or parts where it is desired to make a metallic connection by
coating such parts with a compound similar to that described in Specification 12939
dated 14th day of July 1892 for which Letters Patent were granted to us the
aforesaid applicants, and which compound consists of one drachm of bi-chloride of
platinum, (which has been well washed to eliminate the free acid) one ounce of
balsam of sulphur, and three ounces of spirit of turpentine, the sulphur and
turpentine being first boiled together in a sand bath to the consistency of cream,
oil of turpentine is then added to the mixture until the proper consistency has been
obtained to enable the said compound to be applied to the desired parts of the
vitreous surfaces by a camel-hair brush, pencil, or other suitable means, the articles
having been coated or prepared at the desired parts with this compound are then
fired in an enamel kiln to an ordinary enamel heat to ensure adhesion of the said
compound to the glazed or vitreous surfaces.
$6
Although we have found the aforementioned compound to be effective for
metallising" the vitreous or glazed surfaces of articles at parts where a metallic
connection is desired, we may use oxide of gold, oxide of silver, or platinum sponge
or the like metallic compounds which will similarly adhere to vitreous or glazed
surfaces, such coated or prepared parts being readily connected or metallically
joined by using plumbers' ordinary solder and tools.
The connections or joints made as described will be found of great use in
hermetically joining sheets of glass between which documents or pictures have been
placed for preservation, as both sides of such documents can be readily examined,
for connecting the glass and metallic portions of aquaria and similar structurés, for
effectually securing the lids of jars and the like receptacles made of or from
earthenware, glass or other material having a glazed or vitreous surface, and for
hermetically connecting or joining the vitreous surfaces, or glazed metallic and
vitreous surfaces of various, articles.
"
We do not confine ourselves to the exact proportions of the several ingredients as
herein given, as such proportions may be slightly varied.
1
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 ;-
"
1st. The method of "metallising' or preparing the vitreous surfaces of various
articles at the parts where such articles are intended to be connected or joined by
soldering, by coating or preparing such articles at such parts with a compound
consisting of one drachm of bi-chloride of platinum, one ounce of balsam of
sulphur, and three ounces of spirit of turpentine, the sulphur and turpentine being
first boiled together in a sand-bath to the consistency of cream, oil of turpentine

page_text: being added thereto until the proper consistency has been obtained for enabling the
said compound to be applied by a camel-hair brush, pencil or other means to the
glazed or vitreous surfaces of various articles at the parts where they are intended
to be metallically connected, the articles so prepared being fired in an enamel kiln
to ensure the adhesion of the said compound to the vitreous surfaces for the purposes
herein substantially described and set forth.
"
2nd. The method of " metallising or preparing the vitreous surfaces of various"
articles at the parts where such articles are intended to be connected or joined by
soldering, by coating or preparing such articles at such parts with a compound
consisting of bi-chloride of platinum, balsam of sulphur, and spirit of turpentine in
varied proportions, the sulphur and turpentine being first boiled together in a
sand-bath to the consistency of cream, oil of turpentine being added to the mixture
until the proper consistency has been obtained for enabling the said compound to
be applied by a camel-hair brush, pencil or other means to the vitreous surfaces of
the articles at the parts where they are intended to be metallically connected, the
articles so prepared being fired in an enamel kiln to ensure the adhesion of the said
compound to the vitreous surfaces for the purposes herein substantially described
and set forth.
Dated thin 15th day of Wahmiour 1001
JOHN NEWTON,
Longport, Staffs, Agent for Applicants.