IMPROVEMENTS IN THE TREATMENT OF CONDENSING PANS EMPLOYED IN THE CONDENSATION OF MILK.
Year: 1865

page_text: LETTERS PATENT to Charles Howard Wansbrough, of Shrewton, in the
County of Wilts, Gentleman, for the Invention of "IMPROVEMENTS IN
THE TREATMENT OF CONDENSING PANS EMPLOYED IN THE CONDENSATION OF
MILK. A communication from abroad by Samuel Percy, of the City of
New York, in the United States of America.
Sealed the 14th November 1865, and dated the 5th June 1865.
PROVISIONAL SPECIFICATION. left by the said Charles Howard Wans-
brough at the Office of the Commissioners of Patents, with his Petition,
on the 5th June 1865.
I, CHARLES HOWARD WANSBROUGH, of Shrewton, in the County of Wilts,
Gentleman, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE TREATMENT OF CONDENSING PANS EMPLOYED IN THE CONDENSATION OF
MILK," to be as follows:-
This Invention consists in covering or coating the interior surface of the
vacuum or other condensing pans employed in the concentration or con-
densation of milk, with a view to the preservation of such milk with any oily.
or fatty material or substance, for the purpose of preventing the milk from
burning, and for preventing the albumenous particles in the milk from.
adhering to the surface of the pan, and for ensuring a more rapid and
thorough concentration of the milk under treatment. The oily or fatty matters
or substances which have been found to give the best results are, the stearine
or margarine of animal or vegetable fats or oils, cocoa stearine, purified and
odourless paraffine, spermaceti, bees'-wax, vegetable wax, or cerine; but cerine.
seems to answer the purpose as well as anything, as it remains adherent to

page_text: the pans under a much greater heat than the other substances above
mentioned. The coating or covering may be effected by simply rubbing on
the substance with the hands, or with a cloth previously saturated with it,
and may be best done whilst warm.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Howard Wansbrough in the Great Seal Patent
Office on the 27th November 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
HOWARD WANSBROUGH, of Shrewton, in the County of Wilts, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of June, in the year of our Lord One
thousand eight hundred and sixty-five, in the twenty-eighth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Charles Howard Wansbrough, Her special licence that I, the said Charles
Howard Wansbrough, my executors, administrators, and assigns, or such
others as I, the said Charles Howard Wansbrough, my executors, adminis-
trators, 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 CONDENSING PANS EMPLOYED
IN THE CONDENSATION OF MILK," (a communication from abroad by Samuel
Percy, of the City of New York, in the United States of America,) upon the
condition (amongst others) that I, the said Charles Howard Wansbrough, 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 per
formied, 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 the said Charles Howard Wansbrough, 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, that is to say:
The said Invention consists in covering or coating the interior surface of

page_text: the vacuum or other condensing pans employed in the concentration or con-
densation of milk (with a view to the preservation of such milk) with any
oily, fatty, or waxy material or substance; for the purpose of preventing the
milk from burning, and for preventing the albumenous particles in the milk
from adhering to the surface of the pan, and also for insuring a more rapid
and thorough concentration of the milk under treatment at a much lower
temperature than heretofore, and consequently the milk need never acquire
that unpleasant boiled flavour which is present when the ordinary mode of con-
centration is adopted. The oily, fatty, or waxy matters or substances which
have been found to give the best results are, the stearine or margarine of
animal or vegetable fats or oils, cocoa stearine, purified and odourless paraffin,
spermaceti, bees'-wax, vegetable wax, or cerine; but cerine seems to answer
the purpose as well as anything, as it remains adherent to the pans under a
much higher temperature than the other substances above mentioned. The
coating or covering of the interior of the pans with one or other of these
waxy, fatty, or oily substances may be effected by simply rubbing on such
substances with the hands, or with a cloth previously saturated with the
substances to be applied, and may be best accomplished whilst warm.
The condensing pan thus prepared is ready to receive the milk, which is
previously strained to free it from impurities; the supply of milk is so re-
gulated by preference as to keep the fluid in the pan at or about the same
consistency during the principal part of the evaporating or concentrating
process.
Having now described the nature of the said Invention, and in what manner
the same is to be performed, I declare that what I claim as the Invention
communicated to me from abroad by Samuel Percy, of the City of New York,
in the United States of America, is, the application to the interior surface of
condensing pans employed in the condensation of milk of an oily, fatty, or
waxy material or substance, for the purposes herein-before specified.
In witness whereof, I, the said Charles Howard Wansbrough, have
hereunto set my hand and seal, this Twenty-fifth day of November,
in the year of our Lord One thousand eight hundred and sixty-five.
ATT LOT
CHARLES
LES H. WANSBROUGH. (L.B.)