An Antiseptic Meat or Food Safe, and Method of Using same.
Year: 1892

page_text: Date of Application, 19th Jan., 1892
Complete Specification Left, 16th Apr., 1892-Accepted, 4th June; 1892
PROVISIONAL SPECIFICATION.
An Antiseptic Meat or Food Safe, and Method of Using same.
CHARLES EDWARD FITZGERALD M.D. 27 Upper Merrion Street Dublin
Surgeon Oculist to the Queen in Ireland GEORGE PRESCOTT 9 Merrion Row
Dublin do hereby declare the nature of this invention to be as follows:-
Our invention consists of a box surrounded by or constructed of non-heat
conducting material, into which may be placed meat or other food, into this box is
injected a stream of Co' & the box being comparatively gastight when closed,
the Co by the law of diffusion permeates the meat or other food sufficiently to
destroy the higher organisms which require oxygen for their developement & to
act as an antiseptic to the lower ones which acquire their nitrogen from ammonia
compounds by arresting the changes which produce decomposition. The tem-
perature of the contents of the box is capable of regulation to extreme limits on
the minus side by allowing the Co² to enter the box in a state of expansion.
Dated this 18th day of January 1892.
CHARLES EDWARD FITZGERALD, M.D.,
Aand
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CHARLES EDWARD FITZGERALD, M.D.,
GEORGE PRESCOTT.
עגע UI\
An Antiseptic Meat or Food Safe, and Method of Using same.
CHARLES EDWARD FITZGERALD M.D. Surgeon Oculist to the Queen in
Ireland 27 Upper Merrion Street Dublin, and GEORGE PRESCOTT Electrical
Engineer 9 Merrion Row Dublin do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Into
Our invention consists of a box which may be surrounded by or constructed of
non heat conducting material, into which may be placed meat or other food.
this box is injected a stream of Co² and the box being nearly or completely gas-
tight when closed the Co2 by the law of diffusion permeates the meat or other food
sufficiently to destroy the higher organisms which require oxygen for their develop-
ment, and to act as an antiseptic to the lower ones which acquire their nitrogen
from ammonia compounds by arresting the changes which produce decomposition.
The temperature of the contents of the box is capable of regulation to extreme
limits on the minus side by allowing the Co³ to enter the box in a state of
expansion.
The drawing shows in section the meat or food-safe A lid or cover a. screws a¹ a¹
for the purpose of making the box gas-tight. B is a reservoir for holding com-
pressed Co C is a regulator for adjusting the quantity of gas admitted into A.
D is a stop-cock to permit the attachment of a gauge or manometer or other means
of showing when A is filled with gas, as well as to permit the escape of the air.
If the reservoir and regulator be withdrawn from the box or safe and the opening
closed, the box may be conveniently carried, the screws a' a' might under such
circumstances be replaced by soldering or mechanical equivalent.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
A box or safe for the preservation of food by the injection of Co³ and the
032.
CHARLES EDWARD FITZGERALD, M.D.
GEORGE PRESCOTT.
CHARLES EDWARD FITZGERALD, M.D.
GEORGE PRESCOTT.