IM- PROVEMENTS IN TREATING MANGANESE ORES
Year: 1856

page_text: LETTERS PATENT to Thomas Ainsley Cook, of the, Walker Alkali Works,
Newcastle-on-Tyne, Manufacturing Chemist, for the Invention of "IM-
PROVEMENTS IN TREATING MANGANESE ORES."
Sealed the 21st April 1857, and dated the 1st November 1856.
PROVISIONAL SPECIFICATION left by the said Thomas Ainsley Cook at
the Office of the Commissioners of Patents, with his Petition, on the
1st November 1856.
I, THOMAS AINSLEY COоx, of the Walker Alkali Works, Newcastle-on-Tyne,
Manufacturing Chemist, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TREATING MANGANESE ORES," to be as follows:-
Iron and other foreign matters are mixed with these ores and detract from
their value. Now my Invention consists in ridding manganese ores from such
foreign matters by subjecting them to the action of an acid. For this purpose
I treat the ores with an acid of such strength, that while it dissolves out the
foreign matters, such as iron, &c. it does not act upon or affect the peroxide
of manganese. I find weak muriatic or sulphuric acid suited for the purposes
of my Invention, but prefer to use the residual product obtained in manu-
facturing chlorine from muriatic acid and peroxide of manganese. This
product is now almost valueless, but I find it contains sufficient free muriatic
acid to become available in my process for the purification of manganese ores.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Ainsley Cook in the Great Seal Patent Office on the
30th April 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
AINSLEY COOK, of the Walker Alkali Works, Newcastle-on-Tyne, Manufacturing
Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of November, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Thomas Ainsley Cook, Her special licence that I, the said Thomas Ainsley
Cook, my executors, administrators, and assigns, or such others as I, the said
Thomas Ainsley Cook, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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 "IMPROVEMENTS IN
TREATING MANGANESE ORES," upon the condition (amongst others) that I, the
said Thomas Ainsley Cook, my executors or administrators, by au instrument in
writing under my, or their, or one of their hands and seals, 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 I, the said Thomas Ainsley Cook, do hereby declare
the nature of my 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:-
Iron and other foreign matters are mixed with these ores and detract from
their value. Now my Invention consists in ridding manganese ores from such
foreign matters by subjecting them to the action of an acid. For this purpose
I treat the ores with an acid either in a hot or cold state, of such strength,
that while it dissolves out the foreign matters, such as iron, &c., it does not act
upon or affect the peroxide of manganeso. I find weak muriatic acid (say
about 8 Twaddle) or sulphuric acid (say about 12° Twaddle) suited for the
purposes of my Invention, but prefer to use the residual product obtained in
manufacturing chlorine from muriatic acid and peroxide of manganese. This
¡roduct is now almost valueless, but I find it contains sufficient free muriatic

page_text: acid to become available in my process for the purification of manganese
ores.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim the subjecting of
manganese ores to an acid or to acids, as herein-before described.
In witness whereof, I, the said Thomas Ainsley Cook, have hereunto set
my hand and seal, this Twenty-fourth day of April, One thousand
eight hundred and fifty-seven.
THOMAS AINSLEY COOK. (L.S.)