IMPROVEMENTS IN APPARATUS FOR COOKING AND FOR MAKING COFFEE AND OTHER INFUSIONS
Year: 1872

page_text: LETTERS PATENT to Edward Heinson, Huch, of Brunswick, in the
Empire of Germany, now residing at Klein's Hotel, No. 44,
Finsbury Square, in the City of London, for the Invention of
"IMPROVEMENTS IN APPARATUS FOR COOKING AND FOR MAKING COFFEE AND
OTHER INFUSIONS."
Scaled the 4th February 1873, and dated the 26th August 1872.
COMPLETE SPECIFICATION filed by the said Edward Heinson Huch at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 26th August 1872, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
HEINSON HUCH, of Brunswick, in the Empire of Germany, now residing
at Klein's Hotel, No. 44, Finsbury Square, in the City of London, send
greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN APPARATUS FOR COOKING AND FOR MAKING COFFEE AND OTHER INFUSIONS,"

page_text: and have petitioned Her most Excellent Majesty Queen Victoria to
grant unto me, my executors, administrators, and assigns, Her Royal
Letters Patent for the same, and have made solemn Declaration that I
am the first and true Inventor thereof.
NOW KNOW YE, that I, the said Edward Heinson Huch, do hereby
declare the nature of the said Invention, to be as follows:-
This Invention has for its object improvements in apparatus for
cooking and for making coffee and other infusions.
I employ for cooking meat, vegetables, and other substances a pot
which is set over a lamp or over a gas flame, and this pot is closed
perfectly air-tight by a cover, the rim or flange of which dips down into
water contained in a deep trough formed around the pot. The lid of
the pot is connected with the regulator of the lamp or gas flame. When
steam is generated within the pot the lid commences to rise, and acting
upon the regulator it causes the size of the flame to be decreased until
the steam ceases to be generated with sufficient rapidity to raise the lid
higher. In this way without any attention and without any escape of
vapour or aroma from the pot, a boiling temperature can be maintained
for any desired time.
For making coffee and such like infusions I employ a pot supported
over a gas or lamp flame. This pot has an inner vessel fitting closely
within it at the upper part, and this inner vessel has a perforated bottom
covered with flannel or such like material on which the coffee rests.
A pipe descends through the perforated bottom of the inner vessel nearly
to the bottom of the pot.
When the water in the pot boils, the pressure of the steam drives the
water up the pipe into the upper vessel over the coffee. The water then
comes in contact with the lid. The lid is made to enter and descend
some distance into the pot. When the water rises up to the lid the lid
floats, being thus lifted, and by means of apparatus connected with it
it extinguishes the flame beneath the pot. The steam in the lower part
of the pot condenses as the pot becomes cool, and the vacuum so formed
sucks down the water through the bed of coffee and the infusion is then
ready to be drawn off for use.
As in the cooking pot the lid has a rim or flange dipping into a water
trough formed around the edge of the pot, but in this case the trough is
shallower.

page_text: readily carried into effect, I will proceed to describe the Drawings here-
unto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front view of cooking apparatus arranged according to
my Invention; Figure 2 is a side view; and Figure 3 a vertical section
of the same. a, a, is a pedestal or base on which is supported a lamp b.
the lamp shewn in the Drawing is adapted to burn petroleum oil.
.
Figure 4 is a plan of the lamp, it has two flat wicks 6', 6', which can
be raised and lowered by turning the axes 6º, 6º. c is a metal chimney
also shewn in plan at Figure 5, it rests upon the three supports b³, b³ b³.
In the bottom of the chimney are two domes c¹, c¹, with openings at the
top through which the flames from the wicks rise; they serve to direct
the air against the flames and to ensure perfect combustion. C³ is a
glazed sight hole in the side of the chimney; d is the pot at its lower
part, which is of smaller diameter than the upper, it enters within the
chimney c and rests upon a triangle which is there fixed.
The upper
part of the pot consists of two cylinders d' and d³, one within the other,
and they enclose within them a trough-like cavity completely separated
from and surrounding the cooking chamber; d³ is a tap by which the
water trough can be emptied; e is the lid, it has a flange e¹ descending
nearly to the bottom of the water trough around the pot, and so making
a joint which remains air-tight whilst the lid is free to rise and fall
through a considerable space; e is a stud on the top of the lid, it
receives upon it the cross bar f, from the ends of which light rods f
descend and are jointed to arms 9, 9, on the axes 6º, 6º.
be seen that as the lid rises and falls with the variation of the pressure
of the steam within the pot, the axes 62 will be turned partly round, and
on turning, the axes 6 the wicks are raised and lowered by the usual
mechanism.
Thus it will
When the apparatus is set to work the flames of the lamp are adjusted
so as to burn with a full flame, and by the automatic action of the
apparatus the flame is reduced when the pot commences to boil. The
arms g can be adjusted upon the axes 62, and when properly set are held
fast between screw nuts 6, 6, upon the axes; h is a vessel or tray with
a perforated bottom, it fits within the upper part of the pot and is
intended to receive vegetables requiring to be steamed.

page_text: Figure 6 is a side view, and Figure 7 a front view of a pot con-
structed, according to my Invention for making coffee and other infusions;
Figure 8 is a vertical section of the same. a, a, is a pedestal or
base on which stands a pot b. Beneath the pot is an alcohol lamp c
with a cover c', and by shutting down the cover the lamp can be
extinguished.
The pedestal and lamp are seen in plan at Figure 9. The inner
vessel d, which is shewn separately in section at Figure 10, fits closely
within the upper part of the pot. There are one or two small perforations
in the bottom of the inner vessel and a pipe d¹ passes up through it.
Figure 11 shews a perforated disc e which is laid upon the bottom of
the vessel d, and over it a piece of felt or flannel (also shewn at
Figure 12) is placed and held in position by a metal ring 9 (see
Figure 13) which fits tightly into its place within the vessel d. The
ground coffee is laid upon the felt or flannel f; some distance above the
coffee the vessel d receives a perforated cover h which is held in place
by a spring ring i, and the tube d¹ terminates above the cover h. When
the water in the pot boils the water rises up the tube d¹ and descends
on to the top of the coffee, and then (the lamp being extinguished) it
descends again through the coffee and is aided in so doing by the vacuum
resulting from the condensation of the steam in the pot b. Or the
tube d¹ may terminate at the bottom of the vessel d, which in this case
is not perforated, and then the water passes through the coffee both in
rising and descending; k is the lid of the pot, it is hollow, and its under
side ¹ enters some distance down into the upper part of the pot. When
the water rises by the pipe d¹ it comes in contact with the lid and floats
it, and when the lid thus rises it, by means of the descending arms k²
and cross bars k³, k³, closes the lid of the lamp. The lid has a descending
flange k upon it which dips into the water trough 6¹ formed around the
mouth of the pot.
A section of the lid and parts connected with it is shewn at Fig. 14;
and Figure 15 is a plan partly in section of the same. 6º is a tap for
drawing off the coffce; and 6s is an air tap which is opened when
drawing out by the tap 62 in order to obtain a free flow. The tap 6³ has
a funnel upon it and it may also be used in pouring water into the pot.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that I

page_text: claim, the construction of cooking pots with lids, which are rendered air
and steam tight by dipping into water or other liquid, and which are
able to rise and fall with the pressure of the steam beneath them, and
in so doing give motion to instruments which regulate the flame beneath
the pot, substantially as described.
I also claim the construction of pots for making coffee and other
infusions in such manner that when the pressure of the steam raises
the water from a lower to an upper vessel the water acts upon a float,
and in so doing gives motion to instruments which extinguish the flame,
substantially as described.
i
In witness whereof, I, the said Edward Heinson Huch, have here-
unto set my hand and seal, this Twenty-third day of August,
in the year of our Lord One thousand eight hundred and seventy-
two.