IMPROVEMENTS IN PRESERVING ANIMAL SUBSTANCES, FRUITS, AND OTHER SUBSTANCES. MADE FROM CORN, GRAIN, OR OTHER VEGETABLE MATTER
Year: 1869

page_text: LETTERS PATENT to George Spencer, of 77, Cannon Street, London,
Civil Engineer, and John Barker, of St. Leonards, Mortlake, Surrey,
Merchant, for the Invention of "IMPROVEMENTS IN PRESERVING
ANIMAL SUBSTANCES, FRUITS, AND OTHER SUBSTANCES. MADE FROM CORN,
GRAIN, OR OTHER VEGETABLE MATTER."
Sealed the 14th July 1869, and dated the 9th March 1869.
PROVISIONAL SPECIFICATION left by the said George Spencer and
John Barker at the Office of the Commissioners of Patents, with
their Petition, on the 9th March 1869.
We, GEORGE SPENCER, of 77, Cannon Street, London, Civil Engineer,
and JOHN BARKER, of St. Leonards, Mortlake, Surrey, Merchant, do
hereby declare the nature of the said Invention for "IMPROVEMENTS
IN PRESERVING ANIMAL SUBSTANCES, FRUITS, AND OTHER SUBSTANCES MADE FROM
CORN, GRAIN, OR OTHER VEGETABLE MATTER," to be as follows:-
Our improvements in preserving animal substances, fruits, and other
substances made from corn, grain, or other vegetable matter consists
in placing the substance to be preserved in an air-tight vessel from
which we withdraw the atmospheric air contained therein, and replace

page_text: it by an atmosphere of nitrogen in which decomposition cannot take
place.
Any animal or vegetable substance that is liable to suffer change
or decomposition by contact with atmospheric air can be preserved by
these means, such as the flesh of animals, birds, or fish, either in a
raw or cooked state, malt, flour, biscuit, and other articles manufactured
from corn, grain, or seeds, fruits whole or preserved, potatoes, and such
-like vegetables.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Spencer and John Barker in the Great
Seal Patent Office on the 4th September 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
SPENCER, of 77, Cannon Street, London, Civil Engineer, and JOHN
.BARKER, of St. Leonards, Mortlake, Surrey, Merchant, send greeting.
WHEREAS. Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of March, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said George Spencer and John Barker,
Her special licence that we, the said George Spencer and John Barker,
our executors, administrators, and assigns, or such others as we, the
'said George Spencer and John Barker, our 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 PRESERVING
ANIMAL SUBSTANCES, FRUITS, AND OTHER SUBSTANCES MADE FROM CORN, GRAIN,
OR OTHER VEGETABLE MATTER," upon the condition (amongst others) that
we, the said George Spencer and John Barker, our executors or admi-
nistrators, by an instrument in writing under 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 George Spencer and John Barker,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
Our improvements in preserving animal substances, fruits, and other
substances made from corn, grain, or other vegetable matter consist
in placing the substance to be preserved in an air-tight vessel from
which we withdraw the atmospheric air contained therein, and refill
by an atmosphere of nitrogen in which decomposition cannot take
place.
Any animal or vegetable substance that is liable to suffer change
or decomposition by contact with atmospheric air can be preserved by
these means, such as the flesh of animals, birds, or fish, either in a raw
or cooked state, malt, flour, biscuit, and other articles manufactured from
corn, grain, or seeds, fruits whole or preserved, potatoes, and such like
vegetables.
The air-tight vessels in which the substances to be preserved for
storage or carriage may be made of any convenient shape or size, and
of any suitable material.
The apparatus to be used for withdrawing the oxygen from the
atmospheric air contained in the air-tight vessels, ang filling them with
nitrogen gas is the same as that fully described in John Barker's Patent,
No. 3062, dated 21st Nov. 1806.
In the annexed Drawing a more portable form of this apparatus is
shown, in which the principal parts are lettered to correspond with
those in the apparatus shown and described in John Barker's Patent,
mentioned and referred to above.
In witness whereof, we, the said George Spencer and John Barker,
have hereunto set our hands and seals, this Fourth day of
September, in the year of our Lord 1869..
GEORGE SPENCER. (L.S.)
JOHN BARKER.
(L.S.)