IMPROVEMENTS IN GAS AND OIL STOVES OR APPARATUS FOR HEATING AND LIGHTING PURPOSES
Year: 1881

page_text: LETTERS PATENT to Samuel Clark, of Park Street, Upper Street, Islington,
in the County of Middlesex, for an Invention of "IMPROVEMENTS IN GAS
AND OIL STOVES OR APPARATUS FOR HEATING AND LIGHTING PURPOSES."
PROVISIONAL SPECIFICATION left by the said Samuel Clark at the Office
of the Commissioners of Patents on the 19th September 1881.
SAMUEL CLARK, of Park Street, Upper Street, Islington, in the County of
Middlesex. "IMPROVEMENTS IN GAS AND OIL STOVES OR APPARATUS FOR
HEATING AND LIGHTING PURPOSES."
The Invention has for its object improvements in gas and oil stoves, or apparatus
for heating and lighting purposes, and relates to means whereby a more perfect
combustion is obtained, and the products of combustion are more completely
rendered innocuous by condensation and by re-contact with the flame of the burner
or lamp than with stoves of the construction heretofore adopted.
For this purpose
I construct the stove with a top and bottom chamber connected
together by a tube (in the case of single column stoves), or by side tubes, with a
central tube open at the upper end to the top chamber, but closed to the bottom
chainber, except as hereinafter described.
The burner either for oil or gas is carried by bracket or other support under a
projecting part of the upper chamber (in the case of a single tube stove), or is
placed in or under the central tube (in the case of a stove with side tubes), and
air to support combustion is admitted through suitable apertures.
When employing an argand burner or an oil lamp, the chimney is passed up a
short distance into the said projecting portion of the upper chamber, in the case of
a single column stove, or in the case of a stove with side tubes into the central
tube, the lower end of which is provided with an opening only slightly larger than
the chimney.
Fixed within the central tube is an air tube, which is provided with an opening
at the lower end to admit the external atmosphere, and is open at the upper end
to discharge the same after it has been warmed.

page_text: A smaller tube, which may be fitted internally or externally, connects the bottom
chamber with the single or central tube (as the case may be as aforesaid), above
the flame of the burner or lamp, or with a box or chamber in such central tube
placed immediately over the flame, in which latter case the products of combustion,
after circulating in such box or chamber, are discharged into the air tube above
described.
The action of the stove is as follows:-
The products of combustion pass from the burner through the central tube into
the upper chamber, thence down the tube (in the case of a single tube stove), or in
the case of a stove with side tubes, down the side tubes into the lower chamber,
where they are to a large extent condensed into aqueous liquid. The products of
combustion entering the lower chamber and remaining uncondensed are then to a
large extent conducted by the tube as before mentioned leading into the tube above
the flame and are caused again to circulate with the products of combustion as
before described, or they are conducted into the box or chamber and after circulating
therein and being exposed to the intensely heated plates thereof are discharged
into the air tube.
The liquid of condensation may be allowed to escape by syphon pipe or through
a small aperture in the bottom of the lower chamber into a pan or other receiver;
or it may be allowed to collect at the bottom of such chamber and be drawn off by
tap at pleasure.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samuel Clark in the Great Seal Patent Office on the 17th March
1882.
SAMUEL CLARK, of Park Street, Upper Street, Islington, in the County of
Middlesex. "IMPROVEMENTS IN GAS AND OIL STOVES OR APPARATUS FOR
HEATING AND LIGHTING PURPOSES."
This Invention has for its object improvements in gas and oil stoves or
apparatus for heating and lighting purposes, and relates to means whereby a more
perfect combustion is obtained, and the products of combustion are more completely
rendered innocuous by condensation and by recontact with the flame of the burner
or lamp than with stoves of the construction heretofore adopted.
I will describe my said Invention in connection with the accompanying
Drawings, in which Figure 1 is a longitudinal section, and Figure 2 is a transverse
section of my improved lighting and heating stove or apparatus fitted with an
argand burner; Figure 3 is a transverse section of a similar stove or apparatus
fitted with an oil lamp; Figure 4 is an elevation; Figure 5 is a plan; Figure 6 is
a longitudinal section; and Figure 7 is a transverse section of my improved stove
or apparatus fitted with a Bunsen or air burner; and Figure 8 is a transverse
section, and Figure 9 is a sectional plan of a similar stove to that shown at
Figures 4 to 7, provided with a boiler and circulating tubes.
In all the Figures like parts are marked with similar letters of reference.
I construct the stove with a top chamber a and bottom chamber b, connected
together by side tubes c, c, and with a central tube d open at the upper end to the
top chamber a, but closed to the bottom chamber b, except as hereinafter
described. The burner or lamp e, either for oil or gas, is placed in or under the
ceutral tube d, and air to support combustion is admitted through suitable
apertures e in the lamp or below the burner, as shown at Figures 1, 2, and 3, or
through apertures d¹ in the lower part of the central tube d, as shown at
Figures 4, 6, 7, and 8..
When employing an argand burner or an oil lamp, the chimney f thereof is, as
shown at Figures 1, 2, 3, passed up a short distance into the central tube d, the
lower end of which is provided with an opening only slightly larger than the
chimney f
Fixed within the central tube d is an air tube g, which is provided with an
opening gl at the lower end to admit the external atmosphere thereto, and is open
at the upper end to discharge the same after it has been warmed.
A smaller tube h, which may be fitted internally, as shown at Figures 6 and 7, or
externally, as shown at Figures 1, 2, 3, 7, 8 and 9, connects the bottom chamber b
with the central tube above the flame of the burner or lamp, or with a box or
chamber i in such central tube placed immediately over the flame, in which latter
case the products of combustion after circulating in such box or chamber i are
discharged into the air warming tube above described. In the arrangement
represented at Figures 8 and 9, I have shown a boiler j placed within the central
tube d and provided with circulating tubes k, l, which may be conducted in any
required direction.
If desired, the top and bottom chambers a and b may be connected together by
only one tube c, in which case the burner or lamp would be carried by a bracket
or support under a projecting part of the upper chamber a, and the chimney would
be passed up into the said projecting portion of the upper chamber a, or into a
tube & connected therewith, and the small tube h would be arranged in similar
modes to those before described.

page_text: The action of the improved lighting or heating stove or apparatus is as
follows:-
The products of combustion pass from the burner or lamp e through the tube d
into the upper chamber a, thence down the tube or tubes c, c, into the lower
chamber b, on their passage to and in which they are to a large extent condensed
into aqueous liquid.
The gaseous or aeriform products of combustion entering the lower chamber b
and remaining uncondensed are then to a large extent conducted by the tube / into
the tube d, above the flame, as shewn and described with respect to Figures 1, 2, 3,
and are caused again to circulate with the products of combustion, or they are
conducted into the box or chamber i, and after circulating therein and being
exposed to intensely heated plates thereof, as shown and described with respect to
Figures 4 to 9, are discharged into the air tube and from thence pass away with
the heated air into the apartment or chamber.
The liquid of condensation may be allowed to escape by syphon pipe or through
a small aperture b' in the bottom of the lower chamber b into a pan or other
receiver m, or it may be allowed to collect at the bottom of such chamber b and be
drawn off therefrom by tap at pleasure.
Having thus described the nature of my said Invention and the mode in which
I carry the same into effect, I would have it understood that I do not claim the
'employment of parts a, b, c, d, e, f, g, separately considered, but what I do claim is
the combination of the above mentioned parts with the parts h and i, together
with the mode of operation, substantially as herein shown and described.
In witness whereof, I, the said Samuel Clark, have hereunto set my hand
and seal, this Sixteenth day of March, in the year of our Lord One thousand
eight hundred and eighty two.
Signed, sealed, and delivered by
the within named Samuel Clark
in the presence of
JOSEPH E. S. KING,
16, North Buildings,
-Finsbury-Circus, E:C.
Calo
SAMUEL CLARK. (L.S.)