IMPROVEMENTS IN APPARATUS FOR HEATING STOVES BY GAS
Year: 1857

page_text: LETTERS PATENT to Francis Xavier Kukla, of Raven Row, Mile End
Gate, in the County of Middlesex, for the Invention of "IMPROVEMENTS
IN APPARATUS FOR HEATING STOVES BY GAS."
Sealed the 7th July 1857, and dated the 10th January 1857.
PROVISIONAL SPECIFICATION left by the said Francis Xavier Kukla
at the Office of the Commissioners of Patents, with his Petition, on
the 10th January 1857.
I, FRANCIS XAVIER KUKLA, of Raven Row, Mile End Gate, in the County
of Middlesex, do hereby declare the nature of the Invention for "IMPROVE-
MENTS IN APPARATUS FOR HEATING STOVES BY GAS," to be as follows:-
This Invention has for its object improvements in apparatus for heating
stoves by gas. For these purposes a metal tube or cylinder is employed, closed
at the upper end by a mass of metal. This tube or cylinder is fixed at its
lower end by straps to a bar in such manner as to admit atmospheric air into
the tube or cylinder freely at the bottom. The upper part of the tube or cylinder
below where it is closed is perforated with numerous small holes. One end of
a gas pipe having a suitable regulating cock is passed through and fixed to the
bar, so that the upper end of the pipe rises some height into the tube or
cylinder. On the inside of the tube or cylinder is a cylinder of wire gauze,
which descends below the parts of the tube or cylinder which are perforated.

page_text: The lower part of the gauze cylinder is closed in around the gas supply pipe by
a cone of gauze. The gas is thus admitted into the cylinder of gauze, and is
there mixed with atmospheric air, and the two mixed together pass through
the perforations in the upper part of the tube or cylinder and are ignited. This
arrangement or combination of apparatus is placed inside of any suitable case
forming a gas stove.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Francis Xavier Kukla in the Great Seal Patent Office on
the 10th July 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANCIS
XAVIER KUKLA, of Raven Row, Mile End Gate, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing, date the Tenth day of January, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Francis Xavier Kukla, Her special licence that I, the said Francis Xavier
Kukla, my executors, administrators, and assigns, or such others as I, the said
Francis Xavier Kukla, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use, exer-
cise, and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
APPARATUS FOR HEATING STOVES BY GAS," upon the condition (amongst others)
that I, the said Francis Xavier Kulka, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the. same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next and
iinmediately after the date of the said Letters Patent:
NOW KNOW YE, that I, the said Francis Xavier Kukla, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in apparatus for heating
stoves by gas. For these purposes a metál tube or cylinder is employed, closed

page_text: at the upper end by a mass of miétal. This tube or cylinder is fixed at its
lower end by straps to a bar in such manner as to admit atmospheric-air into
the tube or cylinder freely at the bottom. The upper part of the tube or
cylinder below where it is closed is perforated with numerous small holes. One
end of a gas pipe having a suitable regulating cock is passed through and fixed
to.the bar, so that the upper end of the pipe rises some height into the tube or
cylinder. On the inside of the tube or cylinder is a cylinder of wire gauze,
which descends below the parts of the tube or cylinder which are perforated.
The lower part of the gauze cylinder is closed in around the gas supply pipe by
a conc of gauze.
:
The gas is thus admitted into the cylinder of gauze, and is there mixed with
atmospheric air, and the two mixed together pass through the perforations in
the upper part of the tube or cylinder and are ignited. This arrangement or
combination of apparatus is placed inside of any suitable case forming a gas
5 stove.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto
annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 is a side view of a gas stove having heating apparatus constructed
according to my Invention. a, a, is the base of the stove, supporting the outer
case b, which is kept in its place on the base by the small blocks c, c. Figure 2
is a side view of this outer case shown separately; the apertures b', ', are to
admit air to the interior of the case. d is a tube for conducting gas to the
stove; it passes through the piece of metal e fixed on the base a, as is clearly
shown in the sectional view, Figure 3. The piece of metal e forms a cross
bar for fixing the tube f, which may either be fixed directly to it by screws, or
metal straps may be used for connecting the two pieces. In the one case the
air will enter the tube by the spaces on each side of the cross piece, and in the
other case it will be able to enter all round the bottom of the tube, the metal
straps being so arranged as to raise it a short distance above the piece e. The
tube f is closed at the top and open at the bottom; it is perforated all round
with small holes, as is shown in Figure 4. 9 is a cylinder of wire gauze (shewn
separately at Figure 4) fitting within the tube f. This cylinder is open at the
top and closed at the bottom around the supply pipe by a cone of wire gauze ;
but this is not essential, as it may, if preferred, be left open at the bottom. The
gas issuing from the pipe d becomes mixed with air within the wire gauze
tube, and escapes through the perforations in the tube f, around which it burns.

page_text: h is a mass of metal which drops in at the top of the tube f; it serves to absorb
and radiate the heat of the flame surrounding the tube.
In witness whereof, I, the said Francis Xavier Kukla, have hereunto
set my hand and seal, this Eighth day of July in the year of our
Lord One thousand eight hundred and fifty-seven.
Witness,
JNO. ALCOCK.
F. X. KUKLA. (L.S.)