Improvements in Gas and Oil Cooking Stoves.
Year: 1889

page_text: Date of Application, 9th Oct., 1889
Complete Specification Left, 22nd Mar., 1890-Accepted, 26th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Gas and Oil Cooking Stoves.
I, EDWIN HASLAM, of 2 and 3 St. Helens Street, Derby, Gas Engineer and
Worker in Wrought Iron, do hereby declare the nature of this invention to be as
follows:-
This my invention relates to certain new and useful improvements in gas and oil
stoves, and which invention has for its object to save in the consumption of gas or
oil in the heating of water for culinary and other purposes.
The invention has also for its object to provide a larger heating surface than
hitherto without enlarging the stove, and the invention further consists in the
employment of tubes in combination with the boilers as used with this class, of
cooking stoves.
In the class of gas and oil cooking stoves to which this my invention is especially
applicable the boiler for producing hot water is secured to the side of the stove and
may necessitate the employment of a separate burner for heating it, thereby burning
gas or oil which by my improvements is saved.
Now by this my invention I employ a copper or other metal boiler which is placed
upon the top of the oven in such a manner that the heat from the oven which would
otherwise be wasted heats the water when the oven is used, so that there is a constant
supply of hot water.
In some cases I find it convenient to construct the boiler in such a way that it
forms the top of the oven; or the boiler may be constructed around the sides of the
oven when it may also form the sides of the oven if desired.
In order to increase the heating surface, I construct the boilers of corrugated iron.
I may also construct the sides or other parts of the oven or stove of corrugated iron.
When the boiler is situated at the side of the stove as has hitherto been usual, or
even when it is placed over the oven as afore-described, I may employ in combination
therewith a series of tubes which may be coiled within the oven or the hottest part of
the stove, in such a manner that a constant current is maintained, and the water
thereby quickly heated.
Dated this 0th dow of October 1889
:
COMPLETE SPECIFICATION.
Improvements in Gas and Oil Cooking Stoves.
I, EDWIN HASLAM, of 2 and 3 St. Helens Street, Derby, Gas Engineer and Worker
in Wrought Iron, 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 :-
This my invention relates to certain new and useful improvements in gas and oil
stoves, and which invention has for its object to save in the consumption of gas or
oil in the heating of water for culinary and other purposes.
The invention has also for its object to provide a larger heating surface than hitherto
without enlarging the stove.
In that class of gas and oil cooking stoves to which my invention is especially
applicable the boiler for producing hot water is secured to the side of the stove and
necessitates the employment of a separate burner for heating it, thereby burning gas
or oil which by my improvement is saved.
This my invention consists in the construction of the boiler and its position, the
CD 031

page_text: employment of coils or tubes in combination with the boiler used with gas and oil
stoves, and the use of corrugated metal in the construction of the said boilers and gas
and oil stoves, all as hereinafter set forth.
I now proceed to describe my said invention, reference being had to the accom-
panying drawings and to the Figures and letters of reference marked thereon, like
letters referring to like parts throughout.
Fig. 1 is a perspective elevation of so much of a gas stove as will serve to illustrate
the nature of one form of my invention. Fig. 2 is a similar elevation, showing an
alternative form of my invention. Figs. 3 and 4 are sectional plan views taken on
the lines x and y y of Figs. 1 and 2 respectively.
By this my invention-when the boiler A in existing stoves is situated at the side
or back of the stove (Fig. 1)-I employ a copper or other metal tube or tubes B,
which are coiled in one, two or more layers above the top of the oven C substantially
as shown. One end of the coiled tube B is extended to enter the boiler, as shown at D,
preferably near the bottom thereof, and the other end of the tube is extended upwards
and enters the boiler at or about at E near the top of the boiler. By this arrangement
of tube or tubes and boiler, the water contained in the tubes-which are situated in
the hottest part of the oven-readily becomes hot, and rises, entering the boiler at E.
Cold water from the boiler enters the tube at D, and thus a rapid circulation is kept
up and the bulk of water quickly heated. It is not essential that the tube or tubes B
should be situated at the top of the oven as shown, inasmuch as the tube may be coiled
around the side, or up one side of the oven, as will be understood. The tube or tubes
may rest upon the top of the oven, or be supported by angle irons or other means upon
the underside of the oven, as preferred.
In Figs. 2 and 4 I have shown the boiler A in the form of a rectangular box which
is placed upon the top of the oven, and which may be constructed of plain sheet iron,
steel, or other metal, or may be made of corrugated metal either whole or in part.
In the drawings I have shown the bottom of the boiler only made in corrugated
metal. By the employment of corrugated metal in the construction of the boilers, I
provide a larger heating surface as will be understood. If desired, the boiler may be
supported upon suitable angle irons or other supports F and thus form the top of the
oven. If preferred also, the boiler can be placed at any one of the sides of the oven,
and can be arranged to form the side or sides of the oven, thus forming and answering
the double purpose of boiler and water-jacket to the oven.
By these my improvements I may construct the sides of the oven and other parts of
gas or oil stoves of corrugated iron, steel or other metal, by means of which I attain
increased heating surface and strength.
Although in the drawings I have shown my improvements applied to a gas stove,
yet it is evident that the said improvements are equally applicable to oil stoves.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. In gas and oil cooking stoves, the employment of a tube or tubes coiled and
supported on the top of, or on the underside of the top of the oven or between the
inner and outer casing, and arranged in combination with the boiler so as to produce
a free circulation of the water all substantially as set forth.
2. In gas and oil cooking stoves, the employment of a tube or tubes coiled up one
side of the oven, or arranged around the sides of the oven or in the space which is
jacketed and connected with the boiler so as to produce a free circulation of the water,
all substantially as set forth.
3. In gas and oil cooking stoves, the hot water boiler constructed in rectangular or
other form and placed upon the top of the oven, or supported by angle irons or other
means so as to form the top of the oven, and said hot water boiler made wholly or in
part of corrugated sheet metal, or plain sheet metal, all substantially as and for the
purposes hereinbefore set forth.
4. In gas and oil cooking stoves, the hot water boiler arranged upon one of the
inner sides, or around the inner sides of the oven so as to form the sides of said oven,

page_text: the said hot water boiler made wholly or in part of corrugated sheet metal, or entirely
of plain sheet metal, all substantially as and for the purposes hereinbefore set forth.
5. In the construction of gas and oil cooking stoves, the employment of corrugated
iron steel or other metal, substantially as and for the purposes hereinbefore set forth.
Dated this 22nd day of March 1890.
HORN & SON,
Applicant's Agents.