IMPROVEMENTS IN THE TREATMENT OF MILK IN ORDER TO ITS PRESERVATION
Year: 1873

page_text: LETTERS PATENT to Edward William Phibbs, of No. 10, Coleman
Street, in the City of London, for the Invention of "IMPROVEMENTS
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Sealed the 10th March 1874, and dated the 4th November 1873.
PROVISIONAL SPECIFICATION left by the said Edward William
Phibbs at the Office of the Commissioners of Patents, with his
Petition, on the 4th November 1878.
I, EDWARD WILLIAM PHIBBS, of No. 10, Coleman Street, in the City
of London, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE TREATMENT OF MILK IN ORDER TO ITS PRESERVATION," to
be as follows:―
In the treatment of milk in order to its preservation I first condense
it by any method generally adopted. I then subject the condensed milk
to heat below the boiling point of water, say of from about 150° to about
190° Fahrenheit for about 30 minutes, though the time occupied will
vary with the heat employed, the condition, quality, or character of the

page_text: milk, the season, and the period for which it is intended to be kept good
and capable of mixing with water for use.
If I wish to produce a custard character to the milk I employ a
higher temperature, say about 200° Fahrenheit and upwards, reducing
the time occupied with the increase of temperature from about 20 5
minutes.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Edward William Phibbs in the Great Seal Patent
Office on the 4th May 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD :
WILLIAM PHIBвS, of No. 10, Coleman Street, in the City of London,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of November, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Edward William Phibbs,
Her special license that I, the said Edward William Phibbs, my
executors, administrators, and assigns, or such others as I, the said
Edward William Phibbs, 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 TREATMENT OF MILK IN
ORDER TO ITS PRESERVATION," upon the condition (amongst others) that I,
the said Edward William Phibbs, 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 Edward William Phibbs, do hereby

page_text: same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :-
In the treatment of milk in order to its preservation I first condense
it by any known method generally adopted but without the addition of
sugar thereto. I then subject such unsugared condensed milk to heat
below the boiling point of water, say of from about 150° to about
190° Fahrenheit for about thirty minutes, although the time occupied
will vary with the degree of heat employed, the condition, or quality, or
character of the milk, the season, and the period of time for which it is
intended to be kept good and capable of mixing with water for use.
When subjecting such milk to heat in close cases I generally place
these cases in a close chamber and apply external pressure to them with
the heat in such chamber.
If I desire to produce a custard character to the milk I employ a
higher temperature, say about 200° Fahrenheit and upwards, reducing
the time occupied with the increase of temperature from about twenty
minutes.
In witness whereof, I, the said Edward William Phibbs, have here-
unto set my hand and seal, this Fourth day of May, in the year
higher temperature, say about 200° Fahrenheit and upwards, reducing
the time occupied with the increase of temperature from about twenty
minutes.
In witness whereof, I, the said Edward William Phibbs, have here-
unto set my hand and seal, this Fourth day of May, in the year
of our Lord One thousand eight hundred and seventy-four.
EDWARD WILLIAM PHIBBS. (L.S.)