AN IMPROVED PROCESS FOR PLATING OR PROVISIONAL SPECIFICATION COATING LEAD IRON OR OTHER METALS WITH TIN NICKEL OR ALUMINA
Year: 1854

page_text: LETTERS PATENT to Frederick Samson Thomas, of Hooks Villa, Fulham,
in the County of Middlesex, and William Evans Tilley, of 6, Kirby
Street, in the Parish of Saint Andrew's, Holborn, in the County of
Middlesex, for the Invention of "AN IMPROVED PROCESS FOR PLATING OR
PROVISIONAL SPECIFICATION left by the said Frederick Samson Thomas
and William Evans Tilley at the Office of the Commissioners of Patents,
with their Petition, on the 26th December 1854.
We FREDERICK SAMSON THOMAS of Hooks Villa Fulham in the County of
Middlesex and WILLIAM EVANS TILLEY of 6 Kirby Street in the Parish
of Saint Andrew's Holborn in the County of Middlesex do hereby declare
the nature of the said Invention for "AN IMPROVED PROCESS FOR PLATING OR
COATING LEAD IRON OR OTHER METALS WITH TIN NICKEL OR ALUMINA" to be
as follows:-
The best means we are acquainted with for carrying out this Invention is as
follows; We dissolve metallic tin by nitro-muriatic acid then precipitate the
tin by ferro-cyanide of potassium. We also mix sulphuric acid or muriatic
acid with the oxide of tin to which we add distilled water then we boil in an
iron furnace the liquor is then filtered and the solution is completed. We
22627-1.

page_text: dissolve nickel muriatic acid which we precipitate by ferro-cyanide of potas-
sium we then wash the oxide and add thereto cyanide of potassium in a
state of solution then boil the same filter it and therewith form a bath in
which we insert the oxide of metal in a bag. To procure alumina we take
alum and dissolve it in water We then add ammonia until it ceases to pre-
cipitate any more We then wash the alumina filter it add thereto distilled
water boil the same with the cyanide of potassium filter again the solution
is then ready and we suspend in a bath a bag of alumina. Having thus
obtained either of the foregoing solutions the articles to be covered or plated
are suspended by copper or brass rods in a bath of such solutions and
attached to the zinc pole of a battery to the positive pole of which is attached
a piece of platina or a pole of tin according to the character of the metal to
be deposited.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederick Samson Thomas and William Evans Tilley in the
Great Seal Patent Office on the 26th June 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME we FREDERICK
SAMSON THOMAS of Hook Villa Fulham in the County of Middlesex and
WILLIAM EVANS TILLEY of 6 Kirby Street in the Parish of St. Andrew
Holborn in the County of Middlesex send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her Letters
Patent bearing date the Twenty-sixth day of December in the year of our
Lord One thousand eight hundred and fifty-four in the eighteenth year of
Her reign did for Herself Her heirs and successors give and grant unto
us the said Frederick Samson Thomas and William Evans Tilley Her
special licence that we the said Frederick Samson Thomas and William
Evans Tilley our executors administrators and assigns or such others as
we the said Frederick Samson Thomas and William Evans Tilley our
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 "AN IMPROVED PROCESS FOR PLATING
OR COATING LEAD IRON OR OTHER METALS WITH TIN, NICKEL OR ALUMINA" upon
the condition (amongst others) that we the said Frederick Samson Thomas
and William Evans Tilley by an instrument in writing under our hands and

page_text: seals or under the hand and seal of one of us 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 Patent.
NOW KNOW YE that we the said Frederick Samson Thomas and
William Evans Tilley 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 thereof; that is to say.
The first part of our process consists in a mode of preparing a solution of
the metal with which the articles are to be coated or plated for which
purpose we proceed as follows;
For tin we dissolve metallic tin by nitro-muriatic acid and then precipitate
the tin by an alkali or alkaline salt preferably by the ferro-cyanide of potas-
sium. We then mix sulphuric acid or nuriatic acid with the precipitated
oxide of tin to which we add a portion of water-these we boil in an iron
vessel with a small portion of ferro-cyanide of potassium then filter the
liquor and the solution is completed.
the same.
Another mode of forming a solution of tin is as follows. Having precipi-
tated the oxide of tin as above described we add ferro-cyanide of potassium
to the oxide and boil them then set the solution aside to cool and then filter
We then pass a stream of sulphuric acid gas through the solution.
For nickel we dissolve nickel by nitro-muriatic acid and precipitate the
oxide by ferro-cyanide of potassium. We then wash the oxide and add thereto
cyanide of potassium dissolved in distilled water-then boil the mixture and
when cool filter the sanie which completes the solution of nickel.
For alumina we dissolve alum in water and add ammonia until it ceases to
precipitate any more. We then wash the alumina filter it add thereto distilled
water boil the same with cyanide of potassium, filter when cold and the
solution of alumina is ready.
Having thus obtained either of the foregoing solutions the articles to be
covered or plated are suspended by copper or brass rods in a bath of the
required solution and attached to the zinc pole of a battery to the positive
pole of which is attached in the case of a tin bath a piece of platinum or a
pole of tin-in the case of a nickel bath a bag containing oxide of nickel or
a pole of nickel and in the case of a bath of alumina a bag of alumina or a
pole of aluminium or a piece of platinum.
Having thus described the nature of our Invention and the manner of
carrying the same into effect we claim in respect thereof

page_text: Firstly the modes of forming the solutions of tin nickel and alumina
herein-before described.
Secondly the plating upon other metals from solutions of tin and nickel
prepared as herein-before described by means of a galvanic battery to which
is attached the oxides or poles of the same metals or a pole of platinum as
before described.
Thirdly the plating other metals with alumina or with aluminium by
means of a solution of alumina in connection with a galvanic battery.
In witness whereof we the said Frederick Samson Thomas and William
Evans Tilley have hereunto set our hands and seals this Twenty-fifth
day of June in the year of our Lord One thousand eight hundred and
fifty-five.
Witness
JAMES MURDOCH.
FRED S. THOMAS.
(L.S.)
WILLIAM EVANS TILLEY. (L.S.)