IMPROVEMENTS IN THE MANUFACTURE OF AMMONIACAL SALTS
Year: 1875

page_text: LETTERS PATENT to William Morgan-Brown, of the Firm of Brandon
and Morgan-Brown, Engineers and Patent Agents, of 38, South-
ampton Buildings, London, and 13, Rue Gaillon, Paris, for the
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF AMMONIACAL
SALTS.”—A communication from abroad by Jules Henri Elwert,
of Geneva, Switzerland, Engineer, and Jean Jacques Müller Pack,
of Basel, Switzerland, Chemist.
Scaled the 10th March 1876, and dated the 17th September 1875.
PROVISIONAL SPECIFICATION left by the said William Morgan-
Brown at the Office of the Commissioners of Patents, with his
Petition, on the 17th September 1875.
I, WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-
Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 13, Rue Gaillon, Paris, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF AMMONIACAL
SALTS," to be as follows:-
This Invention of improvements in the manufacture of ammonical
salts is intended more especially to be used in conjunction with "An

page_text: j,
Improved Apparatus for Extracting Ammonia in the Form of Liquid
Ammonia from Crude Amoniacal Liquors Patented by me in 1872 under
the No. 1880, the same apparatus serving with great advantages for the
_manufacture_of_ammoniacal_salts, whether_sulphates, chlorhydrates..
nitrates, carbonates, etc.
Instead of condensing the ammoniacal vapours coming from the
purifiers into the water in the condensing vessel the vessel is substituted
for one or several vessels containing the acid or solution of the acid of
which the ammoniacal salt is required; the ammoniacal vapours are
led to the bottom of these vessels, which in traversing or rising
up through the layers of acid liquor are immediately absorbed and
transformed into a salt of the acid which is in the vessel. The acid
when saturated gives a solution of the salt sufficiently concentrated for
crystallization.
The advantages are these,—
First. That very pure and white salts are made from the acids direct
without a second crystallization or other manipulation or purification.
Second. That the ammoniacal vapours entering into the acid are so
SPECIFICATION-in-pursuance-of-the-conditions of the Letters-Patent,
filed by the said William Morgan-Brown in the. Great Seal Patent
Office on the 11th March 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 13, Rue
Gaillon, Paris, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of September, in the
year of our Lord One thousand eight hundred and seventy-five, in

page_text: the thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said William Morgan-Brown,
Her special license that I, the said William Morgan-Brown, my exe-
cutors, administrators, and assigns, or such others as I, the said
William Morgan-Brown, 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 IN THE MANUFACTURE OF
AMMONIACAL SALTS," (a communication to me from abroad by Jules
Henri Elwert, of Geneva, Switzerland, Engineer, and Jean Jacques
Müller-Pack, of Basel, Switzerland, Chemist,). upon the condition
(amongst others) that I, the said William Morgan-Brown, my exe-
cutors 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 William Morgan-Brown, 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 :-
This Invention of improvements in the manufacture of ammoniacal
salts is intended more especially to be used in conjunction with "An
Improved Apparatus for Extracting Ammonia in the Form of Liquid
Ammonia from Crude Ammoniacal Liquors," Patented by me in 1872,
under the No. 1880, the same apparatus serving with great advantages
for the manufacture of ammoniacal salts, whether sulphates, chloro-
hydrates, nitrates, carbonates, etc., the portion of the same Drawings
hereto attached serving for the description of these improvements.
•
Instead of condensing the ammoniacal vapours coming from the
purifiers E, E¹, E³, E³, into the water in the condensing vessel G,
Figure 1, Figure 4, Figure 7, as described in the before-named Patent,
there is placed one or several vessels containing the acid or solution of
the acid of which the ammoniacal salt is required; the ammoniacal

page_text: vapours are led to the bottom of these vessels, which in traversing or
rising up through the layers of acid liquor are immediately absorbed
and transformed into a salt of the acid which is in the vessel; the acid
when saturated gives a solution of the salt sufficiently concentrated for
First. That very pure and white salts are made from the acids direct
without a second crystallization or other manipulation or purification.
Second. That the ammoniacal vapours entering into the acid are so
pure that they are completely absorbed by the acid, whilst the generally
impure vapours' from other apparatus disengage in contact with acid the
impurity under form of gas or vapours difficult to condense, a liberation
of gas which carries with it part of the ammonia or the acid and even
the salt, which causes considerable loss in the manufacture.
Having now described and particularly set forth the nature of these:
improvements, I would have it understood that I claim, the passing
pure ammoniacal gas as procured in my apparatus Patented in 1872,
under the No. 1880, into vessels containing the acid base with which I
desire the ammonia to combine with to form a salt, substantially as
described.
In witness whereof, I, the said William Morgan-Brown, have
hereunto set my hand and seal, this Eleventh day of March, in
the year of our Lord One thousand eight liundred and seventy-