IMPROVEMENTS IN APPARATUS OR APPLIANCES FOR THE PREPARATION OF DECOCTIONS OR EXTRACTS FROM TEA, COFFEE AND OTHER SUBSTANCES, AND FOR OTHER PURPOSES
Year: 1883

page_text: LETTERS PATENT to Edward Griffith Brewer of 33 Chancery Lane in the
County of Middlesex for an Invention of "IMPROVEMENTS IN APPARATUS OR
APPLIANCES FOR THE PREPARATION OF DECOCTIONS OR EXTRACTS FROM TEA,
COFFEE AND OTHER SUBSTANCES, AND FOR OTHER PURPOSES" communicated
to him from abroad by Messieurs Malen and Deglise of Paris France
PROVISIONAL SPECIFICATION left by the said Edward Griffith Brewer
at the Office of the Commissioners of Patents on the 28th February 1883.
EDWARD GRIFFITH BREWER of 33 Chancery Lane in the County of Middlesex
"IMPROVEMENTS IN APPARATUS OR APPLIANCES FOR THE PREPARATION OF.
DECOCTIONS OR EXTRACTS FROM TEA, COFFEE AND OTHER SUBSTANCES, AND FOR
OTHER PURPOSES (A Communication to me from abroad by Messieurs Malen
and Deglise of Paris France)
"
The object of this Invention is the production of a new kind of multiple
circulating apparatus more particularly intended for the preparation of coffee, tea
and other decoctions either in a bain marie or open fire; this apparatus which may
besides be applied to other useful purposes is moreover arranged so as to produce
without increasing the cost of fuel a large quantity of warm water for washing
purposes or other use. This apparatus although more especially applicable for
military purposes can also be used with advantage in those establishments where
large numbers of persons are to be provided for.
According to this invention two concentric receivers are employed between
which the flame from the fire circulates; the internal receiver forms at will, a sort
of digester, or a coffee pot or any other apparatus suitable for the purpose required
and the external annular receiver serves for the production without cost of a large
quantity of hot water available for any desirable purpose; it can be arranged in
such manner as to be able to pour it directly to the preparation of tea coffee or
LDS31

page_text: other infusion. Water circulating through the apparatus there is no fear of an
explosion taking place moreover the parts in connection with the flame being
completely immersed in the water their temperature does not rise above a fixed
point and are not then submitted to a rapid fall.
The most simple arrangement to be used on an open fire is essentially composed
of an annular receiver of cylindrical shape in the centre of which the digester is
placed the circumference of which is extended in order that the flame of the fire
may circulate freely between these two apparatus before escaping by the chimney.
The annular receiver is closed at its upper part by an annular plate provided with
hinged doors for water to be introduced and for cleaning this part of the apparatus;
a tap is fitted at its lower part for drawing off the hot water and this tap carries a
tube for indicating the level of the water in the vessel. The internal receiver or
digester or coffee pot or other vessel is provided with a double bottom which has
at or about the centre a vertical tube for the escape of steam and laterally with a
descending pipe for allowing the circulating of the liquid. The lower part of this
digester is provided with a tube and tap thereto and its upper part is closed by a
movable cover. The apparatus thus constructed operates in the following manner;
The external jacket receiver being filled with water as well as the central digester
the materials are introduced into this latter vessel and the same is heated by
means of a fire under the apparatus until the operation is completed the liquid
produced can then be drawn off by means of the tap and immediately the
preparation of the coffee can for example be proceeded with. For this purpose
the tap is taken off in order to be able to easily remove the digester which
is replaced by another also arranged for the preparation of the coffee and which
can be immediately filled by means of the water which has been beated in the
jacket or receiver, in this way the preparation of the coffee can be effected in a
very short space of time and at the same time fresh cold water which has been
introduced into the circular receiver is being heated and can be employed for
washing up the bowls or other articles.
It will be understood that the apparatus just described can be used without
circulation and that the liquids contained in the digester or the coffee pot can be
withdrawn by means of a syphon arranged for this purpose in the apparatus
whereby the drawing off tap may be dispensed with. The preparation of the
products may be effected in a bain marie as it has been before stated. I will now
describe the arrangement as applied to a digester for soup, the digester is pre-
ferably of cylindrical shape and is provided at its lowest part with a double bottom
and containing a certain quantity of water which receives the direct action from
the fire below and which is in communication by means of passages with the
annular warm water receiver in which circulation is established by two vertical
conductors by preference on the external side of the digester. The digester closed
by a movable cover is provided with an emptying tap fitted to the end of a pipe
which at the point where it enters the bottom of the digester is closed by a stopper
so as to prevent it being stopped up by the products while they are being prepared;
this stopper may be operated by means of a rod passing through the receiver.
According to another arrangement the apparatus is arranged for the simultaneous
production of coffee by the bain marie and of tea from hot water; this arrangement
only differs from the foregoing in that the external circular receiver is divided into
two compartments obtained by the employment of a partition which divides the
double bottom and goes up to the upper part of the apparatus. In this manner
One of the compartments serves for the production of hot water that is drawn off
by a tap and the other compartment is provided with a grating on which the tea
or coffee to be infused is placed and which is drawn off by a tap at bottom.
The coffee pot operating with a bain marie presents the same general arrange-
ments as the digester for the production of soup before described, it is besides
provided at its lower part with a bottom fitted with a vertical ascending pipe and
a dipping pipe in order to assure the circulation of the liquid; this coffee pot is

page_text: also provided near the top with a filter grating for receiving the powdered coffee
the upright tube is provided at top with a cap intended to throw off the hot water
on the coffee. The drawing off of the coffee is effected as in the preceding
arrangement by means of the tap fitted to the end of the tube secured to the
bottom of the coffee pot.
In the apparatus operating with the bain marie for greater simplicity the
circulation may be dispensed with but without which they do not operate so
effectually. The forms and sizes of the apparatus may be varied as well as the
particular arrangements according to the purpose for which they are employed.
It is evident that the annular receiver may be used for producing hot water
without increasing the consumption of fuel and for all cooking purposes, washing
linen for example to which this apparatus is particularly applicable by providing
hot water for washing and rinsing articles which have been washed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edward Griffith Brewer in the Great Seal Patent Office on the
28th August 1883.
EDWARD GRIFFITH BREWER of 33 Chancery Lane in the County of Middlesex
" IMPROVEMENTS IN
APPARATUS OR APPLIANCES FOR THE PREPARATION OF
DECOCTIONS OR EXTRACTS FROM TEA COFFEE AND OTHER SUBSTANCES AND FOR
"
OTHER PURPOSES (a communication. to me from abroad by Messieurs Malen
and Deglise of Paris France)
"
The object of this Invention is the production of a new kind of circulating
apparatus more particularly intended for the preparation of coffee, tea and other
decoctions either in a "bain marie' or open fire; this apparatus which may besides
be applied to other useful purposes is moreover arranged so as to produce without
increasing the cost of fuel a large quantity of warm water for washing purposes or
other use.
This apparatus although more especially applicable for military
purposes can also be used with advantage in those establishments where large
numbers of persons are to be provided for.
According to this Invention two concentric receivers are employed between which
the flame from the fire circulates; the internal receiver forms at will a sort of
digester or a coffee pot or any other apparatus suitable for the purpose required
and the external annular receiver serves for the production without cost of a large
quantity of hot water available for any desirable purpose it can be arranged in such
manner as to be able to pour it directly to the preparation of tea coffee or other
infusion. Water circulating through the apparatus there is no fear of an explosion
taking place moreover the parts in connection with the flame being completely
immersed in the water their temperature does not rise above a fixed point and are
not then submitted to a rapid fall.
In order to clearly understand the construction and operation of this apparatus
I have shown on the accompanying drawings several examples of apparatus
constructed according to this Invention and the following is a detail description
thereof.
The most simple arrangement to be used on an open fire is essentially composed
of an annular receiver A of cylindrical shape in the centre of which the digester B
is placed, the circumference of which is extended in order that the flame of the
fire may circulate freely between these two apparatus before escaping by the
chimney C. The annular receiver A is closed at its upper part by an annular
plate D provided with hinged doors E for water to be introduced and for cleaning
this part of the apparatus, a tap F is fitted at its lowest part for drawing off the
hot water, and this tap carries a tube G for indicating the level of the water in the
vessel. The internal receiver B, or digester or coffee pot or other vessel is provided
with a double bottom H. which has at or about the centre a vertical tube I for the
escape of steam and laterally with a descending pipe J for allowing the circulating
of the liquid.
The lower part of this digester is provided with.a tube K and tap L thereto
and its upper part is closed by movable cover M.
The apparatus thus constructed operates in the following manner. The external
jacket receiver A being filled with water as well as the central digester B, the
materials are introduced into this latter vessel and the same is heated by means of a
fire under the apparatus until the operation is completed the liquid produced can then
be drawn off by means of the tap Land immediately the preparation of the coffee can
for example be proceeded with. For this purpose the tap L is taken off in order to be

page_text: able to easily remove the digester B which is replaced by another also arranged for the
preparation of the coffee and which can be immediately filled by means of the water
which has been heated in the jacket or receiver A ; in this way the preparation of the
coffee can be effected in a very short space of time and at the same time fresh
cold water which has been introduced into the circular receiver A is being heated
and can be employed for washing up the bowls or other articles.
It will be understood that the apparatus just described can be used without
circulation and that the liquids contained in the digester or the coffee pot B can
be withdrawn by means of a syphon arranged for this purpose in the apparatus
whereby the drawing off tap L may be dispensed with, there is more to change
when a coffee pot is used instead of a digester.
"
In the arrangements shown at Figures 2 and 3 the preparation of the products is
effected in a "bain marie as it has been before stated which is an important
guarantee of their quality. I will now describe the arrangement shown at Figure 2
which shows a digester for soup. As seen by the drawing the digester a which is
of cylindrical shape is provided at its lowest part with a double bottom b and
containing a certain quantity of water which receives the direct action from the
fire c below and which is in communication by means of the passages d with the
annular warm water receiver e in which circulation is established by two vertical
conductors by preference on the external side of the digester. The outer
receptacle e is fitted as before described with movable covers g for the introduction
of liquid and with a draw off cock h which may carry a gauge tube; it is also
traversed by a chimney i for the passage of the smoke from the fire place. The
central receiver closed by a movable cover j is provided with a draw off tap k fitted
to the end of a pipe l which at a point where it enters the bottom of the digester
is closed by a stopper m so as to prevent it being stopped up by the products while
they are being prepared; this stopper may be operated by means of a rod n
passing through the receiver.
In the arrangement shown at Figure 3 the apparatus is arranged for the
simultaneous production of coffee by the "bain marie" and of tea from hot water;
this arrangement only differs from the foregoing in that the external circular
receiver is divided into two compartments p, q by the employment of a partition o
which divides the double bottom b and goes up to the upper part of the apparatus.
In this manner one of the compartments p, serves for the production of hot water
that is drawn off by the tap h and the other compartment q is provided with a
grating on which the tea or coffee to be infused is placed and which is drawn off
by a tap 8 at bottom. The coffee pot t operating with a "bain marie" presents the
same general arrangements as the digester for the production of soup before
described, it is besides provided at its lower part with a bottom u fitted with a
vertical ascending pipe v and a dipping pipe x in order to assure the circulation of
the liquid. This coffee pot is also provided near the top with a filter grating y for
receiving the powdered coffee the upright tube vis provided at top with a cap z
intended to throw off the hot water on the coffee. The drawing off of the coffee is
effected as in the preceeding arrangement by means of the tap k fitted to the end of
the tube secured to the bottom of the coffee pot.
In the apparatus operating with the "bain marie for greater simplicity the
circulation may be dispensed with but without which they do not operate so
effectually.
The form and size of the apparatus may be varied as well as the particular
arrangements according to the purpose for which they are employed.
It is evident that the annular receiver may be used for producing hot water
without increasing the consumption of fuel, and for all cooking purposes, washing
linen for example to which this apparatus is particularly applicable by providing
hot water for washing and rinsing articles which have been washed.
Having now described the nature of the said Invention and in what manner the
same is to be performed I declare that I claim :-
First: The multiple apparatus with or without circulation and more particularly

page_text: intended for the preparation of food coffee tea and other decoctions either in a
"bain marie "
or open fire, the apparatus being especially applicable for military
purposes but may with advantage also be employed in all establishments where a
great number of persons have to be provided for, all substantially as hereinbefore
described and illustrated with reference to the accompanying drawings.
Second-The employment round the boiler of a digester or cafetier and
occupying the centre of the apparatus, an independant annular receiver for
producing without increasing the cost for fuel a large quantity of hot water which
can be used for washing or for the preparation of tea or for other purposes, all
substantially as set forth.
Third: The arrangement for the preparation of food or of coffee by the bain
marie" and consisting in establishing below the boiler or central digester a water
receiver preventing the direct action of the fire on this part of the apparatus and
at the same time producing rapid heat by the circulation of the liquid contained in
the external annular receiver of the apparatus, all substantially as set forth.
Fourth-The arrangement of annular receiver in two separate vessels one of
which can be utilized for the preparation of coffee tea or other infusion the other
for the heating of water, all substantially as set forth.
Fifth-The combined and detail arrangements constituting the three principal
patterns of the apparatus as above described and illustrated in the accompanying
drawings.
In witness whereof I the said Edward Griffith Brewer have hereunto set my
hand and seal this Twenty third day of August in the year of our Lord One.
thousand eight hundred and eighty three.