AN IMPROVE- MENT IN PRESERVING MEAT AND OTHER ANIMAL SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "AN IMPROVE-
MENT IN PRESERVING MEAT AND OTHER ANIMAL SUBSTANCES."-A comimu-
nication from abroad by Jean Pierre Liès-Bodard, of Strasbourg,
France.
Sealed the 18th February 1862, and dated the 20th August 1861.
PROVISIONAL SPECIFICATION left by the said Richard Archibald Brooman
at the Office of the Commissioners of Patents, with his Petition, on the
20th August 1861.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for "AN IMPROVEMENT IN PRESERVING MEAT AND OTHER ANIMAL SUBSTANCES,"
(communicated to me from abroad by Jean Pierre Liès-Bodard, of Stras-
bourg, France,) to be as follows:—
This Invention consists in preserving meat and other animal substances by
means of gluten, and principally of gluten prepared as described in the Spe-
cification of Letters Patent granted to me, 18th July 1860, No. 1742.
The gluten is dissolved in some alkaline or acid salt. Gluten may also be
used dissolved in acids, which arise therein by fermentation. By way of
example I proceed to show how the Invention may be carried into effect:-
Fresh meat in pieces is subjected to the action of steam for a sufficient time

page_text: to coagulate the albuminous portions of the surface, to render the meat more
firm. The meat is then plunged into a composition of dry or fresh gluten
and sugar of lime (sucrate de chaux), or alkaline or acid salt. It is then
immediately placed in a hot air stove at about 212° Fabrenheit, in order to
coagulate this first coat; the operation is repeated for a second coat. In this
double. operation the temperature has been raised to the degree stated, to
prevent the coatings from fermenting, and imparting a bad flavor to the meat.
Four other coats, more or less, are added, but they may be dried at a lower
temperature. The meat thus coated is again submitted to the action of
steam for the double purpose of completely coagulating the envelop, and of
fixing the oxygen in the organic matter, by leaving simply an atmosphere of
azote. Instead of this third operation being performed by steam, boiling
water may be used.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 20th February 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of August, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fifth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said
Richard Archibald Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such others
as I, the said Richard Archibald Brooman, 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 Inven-
tion for "AN IMPROVEMENT IN PRESERVING MEAT AND OTHER ANIMAL SUBSTANCES,"
(communicated to me from abroad by Jean Pierre Liès-Bodard, of Strasbourg;
France,) upon the condition (amongst others) that I, the said Richard Archi-
bald Brooman, 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

page_text: 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 Richard Archibald Brooman, 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 consists in preserving meat and other animal substances by
means of gluten, and principally of gluten prepared as described in the Speci-
fication of Letters Patent granted to me, 18th July 1860, No. 1742, and
which I call "lucine."
The process embraces two operations, the first is to prevent the escape of
the liquids contained in fresh meat, that is to say, to coagulate the albumenous
portions on the surface, and render the meat more firm. I obtain this result,
first, by a superficial desiccation of the meat by means of steam or hot air,
and, second, by immersing the pieces of meat or other animal substance into
an astringent solution, such, for instance, as a tannic or gallic solution. When
the piece of meat contains large vessels, or when it is of an irregular shape,
the before-named operation is rendered more complete by dipping the meat
into dissolved fat or grease, or into a concentrated solution of gelatine, to
fill up the interstices; dissolved fat or grease may also with advantage be
injected into the large vessels.
After having been prepared as above described, the meat is submitted to
the second operation, which consists in coating it with a number of coats of
solution of lucine, or dry gluten, or fresh gluten in an acid or in an alkali, or
in one of the salts capable of dissolving them. The meat or other animal
substance to be preserved, after being submitted to the first operation, is
plunged into a composition of dry or fresh gluten and sugar of lime (sucrate
de chaux), or alkaline or acid salt; it is then immediately placed in a hot air
stove at about 212° Fah, in order to solidify or coagulate this first coat; the
operation is repeated for a second coat, a third and a fourth coat, more or
less. These coats are successively dried on the surface of the meat until the
meat is cased with an envelope capable of resisting blows and the attacks
of insects. When the preserved meat is likely to be exposed to damp,
an outer coating of varnish should be applied to render the surface less
hygrometric.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim the preservation

page_text: of meat and other animal substances by the means and in manner herein-
before described.
In witness whereof, I, the said Richard Archibald Brooman, have here-
unto set my hand and seal; this Twentieth day of February, One
thousand eight hundred and sixty-two.