IM- PROVEMENTS IN THE METHOD OF CONDENSING MURIATIC ACID GAS AND OTHER FUMES
Year: 1874

page_text: LETTERS PATENT to Robert Stirling Newall, of the Washington
Chemical Works, Newcastle-on-Tyne, for the Invention of "IM-
PROVEMENTS IN THE METHOD OF CONDENSING MURIATIC ACID GAS AND OTHER
FUMES."
Scaled the 4th August 1874, and dated the 15th June 1874.
PROVISIONAL SPECIFICATION left by the said Robert Stirling
Newall at the Office of the Commissioners of Patents, with his
Petition, on the 15th June 1874.
I, ROBERT STIRLING NEWALL, of the Washington Chemical Works,
Newcastle-on-Tyne, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE METHOD OF CONDENSING MURIATIC ACID GAS AND
OTHER FUMES," to be as follows:-
:-
My Invention has for its object the production of a spray of water or
other fluid of sufficient fineness to admit of its being used as a means of
condensing muriatic acid gas, or other fumes, in the ordinary high
towers or receptacles without the necessity of filling the same with coke

page_text: is
the spray
or other substance for extending surface. For this purpose
produced by causing a jet of water or other fluid to impinge with great
force on a disc of larger diameter than the jet, and slightly cup shaped.
This spray producer is fitted to a tube with a nozzle at the end, through
which the water or other condensing fluid is forced, and to this tube is
also fitted an arm which carries the said disc; which is adjustable to the
required distance from the nozzle or jet. This arm is so formed as to
present a very thin edge to the spray arising from the disc, so as to avoid
any obstruction to its formation or an accumulation of drops, to which
an arm of thicker section would be liable. This spray producer is made
of platinum, in order that it may be capable of resisting the action of
the acid or fumes.
The spray may also be produced by means of two jets forced one
against the other, instead of by a jet forced against a disc.
The spray forms a kind of mist, which, being admitted at the upper
part of the condenser, mixes with the gas or fumes therein, and effects
the condensation as required.
The spray produced in the manner stated may also be used in the low
chambers described in the Specification of a Patent granted to me and
Henry Bowman, bearing date the 13th January 1874, No. 165.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Stirling Newall in the Great Seal
Patent Office on the 10th December 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
STIRLING NEWALL, of the Washington Chemical Works, Newcastle-on-
Tyne, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of June, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Robert Stirling Newall,
Her special licence that I, the said Robert Stirling Newall, my
executors, administrators, and assigns, or such others as I, the said
-

page_text: The said reservoir, instead of water, may contain dilute acid or a
solution of a salt, or other matter in suspension, such as milk of lime,
capable of absorbing gases or fumes for injection into the towers or
chambers in the shape of fine spray.
When this spray producer is applied to the low chambers described in
the Specification, No. 165, 1874, it is introduced through the centre of the
top of each of the chambers.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, I hereby declare that what I claim
as of my Invention is, the spray producer formed as hercin-before
described, and made of platinum or other substance capable of resisting
the action of the acid or fumes, and its application for the purpose of
condensing muriatic acid, or other condensable gas or fume.
In witness whereof, I, the said Robert Stirling Newall, have
hereunto set my hand and seal, the Fourth day of December,
in the year of our Lord One thousand cight hundred and seventy-
four.
ROBERT STIRLING NEWALL. (L.S.)
Witness,
FRED. S. NEWALL,
Clerk to R. S. Nowall,
Ferndenc,
Gateshead.