IMPROVEMENTS IN THE MANUFACTURE OF SULPHURIC ACID
Year: 1869

page_text: LETTERS PATENT to Konrad Walter, of Wicklow, in the County of
Wicklow, for the Invention of "IMPROVEMENTS IN THE MANUFACTURE
OF SULPHURIC ACID."
Sealed the 2nd July 1869, and dated the 6th January 1869.
PROVISIONAL SPECIFICATION left by the said Konrad Walter at the
Office of the Commissioners of Patents, with his Petition, on the
6th January 1860.
I, KONRAD WALTER, of Wicklow, in the County of Wicklow, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
MANUFACTURE OF SULPHURIC ACID," to be as follows:-
My Invention consists in the employment of ammonia or carbonate of
ammonia to condense the nitric gases escaping from the exit of a vitriol
chamber. To accomplish this I cause the ammonia or carbonate of
ammonia to come in contact with the escaping fumes either in a coke
tower or chamber. The fluid thus resulting is again afterwards de-

page_text: composed with sulphuric acid, and the escaping nitric fumes are
returned into the vitriol chamber for the decomposition of the sulphurous
cases.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Konrad Walter in the Great Seal Patent Office on 5
the 3rd July 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, KONRAD
WALTER, of Wicklow, in the County of Wicklow, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of January, in the year of 1
our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Konrad Walter, Her special licence
that I, the said Konrad Walter, my executors, administrators, and
assigns, or such others as I, the said Konrad Walter, my 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 "IMPROVEMENTS
☑ THE MANUFACTURE OF SULPHURIC ACID," upon the condition (amongst
others) that I, the said Konrad Walter, my executors or administrators,
by an 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 Konrad Walter, 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 :-
My Invention consists in the employment of ammonia or carbonate
of ammonia to condense the nitric gases escaping from the exit of a

page_text: vitriol chamber. To accomplish this I cause the ammonia or carbonato
of ammonia to come in contact with the escaping fumes either in a
coke tower or chamber. The fluid thus resulting is again afterwards
decomposed with sulphuric acid, and the escaping nitric fumes are
returned into the vitriol chamber for the decomposition of the sulphurous
gases.
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,-
First. Condensing the gases which escape from the chamber in the
process of the manufacture of sulphuric acid by the employment of
ammonia.
And, secondly. Separating from the substances so condensed by
sulphuric acid the nitric fumes which are again to be returned to the
vitriol chamber to decompose the sulphurous gases therein.
In witness whereof, I, the said Konrad Walter, have hereunto set
my hand and seal, this Thirtieth day of June, One thousand
eight hundred and sixty-nine.
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