Improvements in Gas or Oil Stoves.
Year: 1893

page_text: Date of Application, 29th Sept., 1893
Complete Specification Left, 22nd June, 1894-Accepted, 28th July, 1894
TRUVIONATI
DUINIOATION.
Improvements in Gas or Oil Stoves.
We, SAMUEL CLARK and FRED HATCHER, Stove Manufacturers, of 30 Park
Street, and EDWIN CHALLIS, Iron Worker, of 25 Sebbon Street, all of Islington
in the County of Middlesex, do hereby declare the nature of this invention to be as
follows:-
.
The invention relates to improvements in that class of gas or oil stove in which
a circulation and condensation of the products of combustion are effected, and has
for its object the reduction in height of the stove, the more effectual heating of the
lower part of the room, and the circulation of air from near the floor and above the
burners through certain passages and chamber, where it is heated, and out at
the top of the stove into the room.
For this purpose we form at the lower part of the stove a shallow condensing
chamber close above which the burners are fixed. The products of combustion
pass into a tube or chamber immediately over the burners and opening at its upper
part into a shallow intermediate chamber extending over the top of the stove; they
then pass from this intermediate chamber down a tube into the bottom or condensing
chamber, partially condensing in their passage; the gaseous products of
combustion not condensed then, rise up a tube or tubes, preferably two, into an air
chamber situated above and extending over the above mentioned shallow inter-
mediate chamber. The tube or chamber immediately above the burners and first
receiving the products of combustion therefrom has elbow air tubes fixed therein
which receive fresh air from the room and deliver it into the air chamber at the top
of the stove, the said air being heated by the products of combustion surrounding
the tubes conveying the same. The air chamber at the top of the stove is provided
with an opening or openings to deliver the heated air into the room, or over which
a boiler or other vessel may be placed. The bottom or condensing chamber has an
outlet for the condensed products of combustion and in the bottom of such chamber
are fixed air tubes which are open at their lower ends and rise up a certain distance
into the tubes connecting the condensing chamber with the uppermost or air
chamber whereby a current of air from the bottom of the room is induced up such
tubes; becomes heated and after passing into the air chamber escapes therefrom
into the room.
Dated September 29th 1893
COMPLETE SPECIFICATION.
Improvements in Gas or Oil Stoves.
We, SAMUEL CLARK and FRED HATCHER, Stove Manufacturers, both of
0 30 Park Street, and EDWIN CHALLIS, Iron Worker, of 25 Sebbon Street, all of
Islington, in the County of Middlesex, 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 :-
The invention relates to improvements in that class of gas or oil stove in which

page_text: passes out at the top of the stove into the room.
The improved stove is illustrated in the accompanying drawings, in which :-
Fig. 1 is a front elevation.
Fig. 2 is a vertical section on the line 2-2 of Fig. 4.
Fig. 3 is a vertical section on the line 3-3 of Fig. 4.
Fig. 4 is a cross section on the line 4-4 of Fig. 2.
Fig. 5 is a plan with the ornamental top removed, showing the hole through
which the heated air escapes from the hot air chamber into the room.
Fig. 6 is a plan showing the intermediate plate between the hot air chamber and
that into which pass the gases of combustion.
Fig. 7 is a plan with the intermediate plate removed, and showing the down-
draught tube leading from the intermediate chamber into the condensing chamber,
and
Fig. 8 is a horizontal section drawn on the line 8-8 of Fig. 4.
We form at the lower part of the stove a shallow condensing chamber a, close
above which the burners bb are fixed; as shown in the drawings the burners are gas
burners fixed to the top plate of the condensing chamber a, and are supplied with
gas by the pipe which passes into the chamber a from the back thereof, but, if
desired, these burners may be otherwise supported, and, in lieu of gas burners, oil
burners may be used. -
The products of combustion pass from the burners into a tube or chamber c
placed immediately over the burners and opening at its upper part into a shallow
intermediate chamber d extending over the top of the stove. They then pass from
this intermediate chamber d down a tube e into the bottom or condensing chamber a,
partially condensing in their passage. The gaseous products of combustion not
condensed then rise up a tube or tubes f, preferably two as shown, into a hot air
chamber situated above and extending over the above mentioned shallow
intermediate chamber d. The tube or chamber c has elbow air tubes h fixed
therein, which receive fresh air from the room and deliver it into the hot air
chamber the said air being heated by the products of combustion surrounding
the said tubes h. The hot air chamber g is provided with an opening or openings g¹
to deliver the heated air into the room, or over which a boiler or other vessel may
be placed.
The bottom or condensing chamber a has an outlet a' for the condensed products
of combustion, and in the bottom of such chamber are fixed air tubes i, which are
open at both their lower and upper ends and rise up a certain distance into the
tubes connecting the condensing chamber a with the uppermost or air chamber 9,
whereby a current of air from the bottom of the room is induced up such tubes,
becomes heated, and, after passing into the hot air chamber
and becoming
mixed with the hot air from the tubes h, escapes therefrom through the aperture g
into the room.
The sides of the stove body are formed of perforated or openwork metal to
permit of the free access of air to the interior.
The chamber g is covered with an ornamental perforated or openwork metal
cover j.
The stove is also provided with a reflector k and a hood I, which parts however
form no part of the present invention.
Having now particularly described and ascertained the nature of our said iuven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In gas or oil stoves, the peculiar combination and arrangement of parts herein
shown and described and for the purpose stated.

page_text: 2. In gas or oil stoves, the combination of a condensing chamber in the base of
the stove, a chamber in the top of the stove to receive the products of combustion,
a tube over the burner to convey the products of combustion into the last mentioned
chamber, cominunication between said chamber and the condensing chamber, a hot
air chamber in the top of the stove, communication between such hot air chamber
and the condensing chamber, air tubes passing through the tube or chamber
immediately over the burner and communicating with the hot air chamber, air
tubes fixed in the bottom of the condensing chamber, open at both ends and rising
a certain distance up the tubes connecting the condensing chamber with the hot air
chamber, and an exit aperture in the top of the hot air chamber, substantially as
herein shown and described and for the purpose stated.
Dated this 22nd day of June 1904.
SAMUEL CLARK,
FRED HATCHER,
E. CHALLIS,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.