Improvements in Apparatus for the Sterilization and Preparation of Food.
Year: 1899

page_text: Date of Application, 15th Apr., 1899
Complete Specification Left, 6th Jan., 1900-Accepted, 10th Feb., 1900
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Sterilization and Preparation of
Food.
We, OLIVER FRANK BURNETT, of 13, Bullen Street, Battersea, in the County
of Surrey, Foreman Tin Plate and Coppersmiths, and THE ARMY AND NAVY
CO-OPERATIVE SOCIETY, LIMITED, of 105, Victoria Street, in the City of West-
minster, Manufacturers, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in apparatus for the sterilization and
preparation of food and has for its object apparatus whereby such sterilization
or preparation is effected in an efficient and rapid manner.
Apparatus constructed according to our invention consists of a steam generat-
ing chamber and a food containing chamber. The steam generating chamber
has a projection, ridge, mark or its equivalent to indicate the point to which
it is to be filled with water, and the food container has a part, preferably reduced
or tapered, which fits within the steam space of the steam generating chamber
so as to be surrounded by the steam and which extends to a point above the
surface of the water therein.
A tube or its equivalent extends from an opening in the bottom of the food
container to a point therein above the level of the food to be treated, thus put-
ting the interior of the food container in communication with the steam space
in the steam generating chamber. This tube is fitted with a removable cap
provided with four or other suitable number of nozzles or their equivalent
adapted to direct the steam ascending the tube from the generating chamber,
toward the food under treatment.
The food container is provided with an accurately fitting lid or cover in which
is a hole closed preferably by a sliding cover. This hole in the lid or cover may
be employed for inserting a thermometer into the food chamber if required,
or for the insertion of a syphon to withdraw liquid such for instance as milk
from the food container, or for other suitable purpose.
The steam generating chamber is filled with water to the aforesaid mark
therein and heated until the water boils. The food container with its contents
is then fitted to the steam generating chamber, and the steam ascending the
aforesaid tube enters the food container, so that the latter is heated both within
and without by the steam and the food is rapidly raised to the temperature of
the steam and sterilized.
If it is required to exclude the steam from the interior of the food container,
this may be done by removing the cap provided with nozzles from the tube
and closing the top of said tube by a tightly fitting plain cap or its equivalent.
Dated this 15th day of April 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicants.

page_text: Improvements in Apparatus for the Sterilization and Preparation of
Food.
We, OLIVER FRANK BURNETT, of 13, Bullen Street, Battersea, in the County
of Surrey, Foreman Tin Plate and Coppersmiths, and THE ARMY AND NAVY
CO-OPERATIVE SOCIETY, LIMITED, of 100, Victoria Street, in the City of West-
minster, Manufacturers, 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:—
Apparatus constructed according to our invention comprises a steam generator
and a food containing vessel provided with a pipe or tube which extends from
an opening in the bottom of said vessel to a point therein above the level of
the food, and which is preferably provided with a cap having downwardly
projecting nozzles.
If required the cap provided with the nozzles may be removed and replaced
by a plain cap which closes the vertical pipe or tube.
The food containing vessel is furnished with a removable lid in which is
a hole provided with a preferably sliding cover. This hole permits the inser-
tion of a thermometer into the food containing vessel if required, or the inser-
tion of a syphon for withdrawing liquid contents from said vessel, or the said
hole may be employed for other purposes.
In order that our invention may be clearly understood and readily carried
into effect we will proceed to describe the same more fully with reference to
the accompanying drawings in which:-
:-
Figure 1 is a partly sectional elevation of a convenient form of the apparatus.
Figure 2 is a plan of the lid.
A is the food containing vessel provided with a reduced or tapered base a.
a is the pipe or tube extending from an opening in the bottom of the con-
tainer A to a point therein above the level of the food. B is the removable cap
which is adapted to fit the top of the tube a' and which is provided with the
downwardly projecting nozzles bb. C is the lid or cover of the vessel A. c is
the hole in the lid C, and c is a pivoted cover adapted to slide over the hole c.
D is the steam generator into which the part a of the vessel A is inserted. d is
a projection for indicating the height to which said generator is to be filled
with water. d d are the handles of the steam generator D and as a are the
handles of the food containing vessel A. B₁ is a cap which may replace the
cap B when it is required to close the tube a¹.
The generator D is charged to the level of the projection d with water and
heated so as to cause the said water to boil. The steam thus generated surrounds
the outside of the part a of the vessel A, and also ascends the tube a' and, if
the cap B is employed, enters the vessel A through the nozzles 6 b. The con-
tents of the vessel A are thus heated both from within and without. This results
in the contents of the vessel A being rapidly raised to the temperature of the
steam, and consequently being sterilized or cooked.
The nozzles 6 of the cap B are adapted to direct the steam towards the
food in the vessel A, but we do not confine ourselves to the form of cap and
nozzles shown in the drawing, as these may be varied to suit requirements.
When the cap B' is employed, the outside only of the part a of the vessel A
is heated by the steam, and the steam is excluded from the contents of said
vessel.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is;-
―:
1. Food sterilizing and preparing apparatus comprising a steam generator
and a food containing vessel provided with a vertical pipe which may or may
not admit steam to the said vessel, substantially as described.
2. Food sterilizing and preparing apparatus constructed, arranged and operat-
ing, substantially as described with reference to the accompanying drawings for
the purpose specified.