IMPROVEMENTS IN THE PRESERVATION OF MILK
Year: 1871

page_text: LETTERS PATENT to James Alfred Wanklyn, Consulting Chemist, of
11, Harrington Street, Hampstead Road, Middlesex, and William
Eassic, of Child's Hill, Hendon, also in the County of Middlesex,
Lou the Tuvantion of is IMPROVEMENTS IN THE PRESERVATION OF MILK."
Scaled the 5th January 1872, and dated the 10th July 1871.. .
PROVISIONAL SPECIFICATION left by the said James Alfred Wanklyn
and William Eassic at the Office of the Commissioners of Patents,
with their Petition, on the 10th July 1871.
We, JAMES ALFRED WANKLYN, Consulting Chemist, of 11, Harrington
Street, Hampstead Road, Middlesex, and WILLIAM EASSIE;. of Child's
Hill, Hendon, also in the County of Middlesex, do hereby deolare the
nature of the said Invention for "IMPROVEMENTS IN THE PRESERVATION. OF
MILK," to be as follows:-
This Invention relates to the preservation of milk, and consists
essentially in mixing glycerine with milk in suitable proportions (say)
about two parts of glycerine to one hundred parts of milk, after which
we concentrate the mixture by evaporation to such a degree as to obtain

page_text: a condensed milk, which will retain its peculiar nourishing qualities,
and will otherwise keep unchanged for a considerable length of time;
or by leaving out the process of evaporation we obtain a milk of ordinary
strength, which will likewise keep its sweetness and otherwise remain
unchanged for a considerable time.
SPECIFICATION in pursuance_of_the_conditions of the Letters Patent,-
filed by the said James Alfred Wanklyn and William Eassic in the
Great Seal Patent Office on the 9th January 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JAMES
ALFRED WANKLYN, Consulting Chemist, of 11, Harrington Strect,
Hampstead Road, Middlesex, and WILLIAM EASSIE, of Child's Hill,
Hendon, also in the County of Middlesex, send grecting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of July, in the year of our
Lord One thousand eight hundred and seventy-one, in the thirty-fifth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said James Alfred Wanklyn and William Eassic, Her
special licence that we, the said James Alfred Wanklyn and William
Eassie, our executors, administrators, and assigns, or such others as wc,
the said James Alfred Wanklyn and William Eassic, our exccutors,
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, usc, 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 PRESERVATION OF MILK," upon the condition (amongst others) that.
we, the said James Alfred Wanklyn and William Eassic, our executors
or administrators, by an instrument in writing under our, or one of our
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.

page_text: NOW KNOW YE, that we, the said James Alfred Wanklyn and
William Eassie, 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 in writing,
that is to say:
This Invention relates to the preservation of milk, and consists
essentially in mixing glycerine with milk in suitable proportions (say),
about two parts of glycerine to one hundred parts of milk, after which
we concentrate the mixture by evaporation to such a degree as to obtain
a condensed milk, which will retain its peculiar nourishing qualities,
and will otherwise keep unchanged for a considerable length of time;
or by leaving out the process of evaporation we obtain a milk of ordinary
strength, which will likewise keep its sweetness and otherwise remain
unchanged for a considerable time.
As a substitute for glycerine we sometimes employ glycol or mannite.
It may be here remarked that we do not restrict ourselves to the
above-mentioned proportions, as by experiment other proportions may
be found more suitable by having a better preserving effect.
Having now described the nature and object of our said Invention
for "Improvements in the Preservation of Milk," together with the
manner in which the same is to be or may be performed or carried into
practical effect, we would remark in conclusion that we claim as our
Invention, the improved process of preserving milk by the aid of
glycerine, or glycol, or mannite, substantially in the manner and by
the means herein-before described.
In witness whereof, I, the said James Alfred Wanklyn, have here-
unto set my hand and scal, this Ninth day of January, in
the year of our Lord One thousand eight hundred and seventy-
two.
JAMES ALFRED WANKLYN. (L.S.)