IMPROVE-, MENTS, IN THE MEANS AND. APPARATUS. FOR PRESERVING.ANIMAL AND VEGETABLE: MATTERS
Year: 1874

page_text: LETTERS: PATENT to Gustave Adolphe Danet and Xavier Charles
Etienne Feuillant, both of No. 10, Rue de Rome, Paris,. in the.
Republic of France, Gentlemen, for the Invention of "IMPROVE-,
MENTS, IN THE MEANS AND. APPARATUS. FOR PRESERVING. ANIMAL AND
VEGETABLE: MATTERS."
Scaled the 18th September 1874, and dated the 23rd March 1874.
COMPLETE SPECIFICATION filed by the said Gustave Adolphe Danet
->
and Xavier Charles Etienne Feuillant at the Office of the Com-.
missioners of Patents, with their Petition and' Declaration, on the
23rd March 1874, pursuant to the 9tli Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GUSTAVE
ADOLPHE DANET and XAVIER CHARLES ETIENNE FEUILLANT, both of
No., 10, Rue de Rome, Paris,, in the: Republic of France; Gentlemen,
send greeting..
"WHEREAS we are: in possession of an Invention for "Tuna

page_text: and have petitioncu Her Majesty to grant unto us, our exccutors,
administrators, and assigns, Her Royal Letters Patent for the same,
and have made solemn Declaration that we verily believe ourselves
to be the first and true Inventors thereof.
NOW KNOW YE, that we, the said Gustave Adolphe Danet and
. Xavier Charles Etienne Feuillant, do hereby declare that the following.
Complete Specification, under our hands and seals, fully describes and
ascertains the nature of our said Invention, and the manner in which
the same is to be performed, that is to say:-
This Invention consists in the employment of a slight desiccation
combined with the use of water-tight recipients containing an atmo-
sphere of sulphurous acid and purified air.
The process is as follows:-Directly the vegetable or animal substances
are collected or the animals slaughtered they are placed in a dry chamber
kept at a temperature of thirty-two degrees Fahrenheit, and in which dry
air is caused to circulate. When the substances are thus dried (this
drying operation is regulated at will) we enclose the products in water-
tight recipients. These recipients should be such as will intercept the
action of the external air and moisture. To better enable them to
prevent the action of the moisture we introduce into cach recipient a
bag containing a suitable hygrometric body of such a nature as shall
not affect the substances to be preserved.
Each of the recipients is provided with two cocks placed in a suitable
manner to allow the whole or part of the interior atmosphere to be
changed. When the preserved substances and the drying bag are intro-
duced the recipient is put in communication with an apparatus so
arranged that a stream of sulphurous acid and also a stream of air
heated to red heat shall at will take the place of the interior atmosphere
so that this atmosphere shall be finally formed of purified air mixed with
sulphurous acid. This result being obtained the closing of the recipient
is effected by closing the cocks, and the recipients are placed in localities
which may be kept or not at a temperature of thirty-two degrees.
:
We produce the sulphurous acid by any of the usual known means, and
the air purified by fire which we employ is obtained by the passage of such
air through a double worm, one of the worms being kept in an incan-
descent state by means of a hearth; the other is plunged in a current of

page_text: cold water. The air egressing from this apparatus is then at a suitable
temperature after being successively heated and cooled.
Other suitable mechanical arrangements may be employed.
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1
Having now described our Invention and the best means we are.
acquainted with for carrying the same into effect, what we claim is, the
improved means and apparatus for preserving animal and vegetable sub-
tances or matters by the employment of slight desiccation combined with
water-tight recipients filled with an atmosphere of sulphurous acid and
air purified by fire as herein-before described.
.
C
In witness whereof, we, the said Gustave Adolphe Danet and
Xavier Charles Etienne Feuillant, have hereto set our hands
and seals, this Twenty-first day of March, in the year of our
Lord One thousand eight hundred and seventy-four.
G. A. DANET.
(L.S.)
C. E. X. FEUILLANT. (L.s:)