IMPROVEMENTS IN STOVES FOR COOKING AND HEATING BY GAS AND IN APPARATUS CONNECTED THEREWITH
Year: 1874

page_text: PROVISIONAL SPECIFICATION left by Francis Henry Fearns and
William Jackson at the Office of the Commissioners of Patents,
with their Petition, on the 16th July 1874.
WC, FRANCIS HENRY FEARNS, of Marlborough Works, Manufacturer,
and WILLIAM JACKSON, of Marlborough Road, Engineer, both in the
County of Surrey, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN STOVES FOR COOKING AND HEATING BY GAS AND IN
APPARATUS CONNECTED THEREWITH," to be as follows:-
These improvements relate to stoves and apparatus whereby coal gas
or other combustible gases may be employed for cooking or heating
purposes.
The coal gas or other combustible gas is supplied to the burners or.
orifices at which it is to be ignited, combined with the requisite quantity
of atmospheric air for its perfect combustion, thereby preventing the
passing of any unconsumed carbon contained in the gas into the
stove, and the unpleasant odours generally attending the use of gases for
heating and cooking purposes. The atmospheric air for combining
with the gas prior to its combustion may be taken from the room or
chamber in which the stove is placed, but it is preferred that the
atmospheric air be taken by means of pipes or otherwise from the
external atmosphere. The stove is provided with a chamber of suitable

page_text: capacity surrounding the pipe or pipes through which the gas is made to
pass. The atmospheric air is caused to enter this chamber, and is by
means of orifices in one part of the chamber made to combine with the
gas, and the combined gas and atmospheric air will be conveyed by
suitable pipes or chambers to the burners or orifices where combustion is
to take place.
At any desired height above the point at which the gas is ignited, we
arrange a tray or trays in the framework of the stove, and these trays
may be fitted in series, and over each of them may be placed hollow
truncated cones when the section of the stove is circular and hollow
truncated pyramids when the section of the stove is rectangular. These
truncated cones or pyramids are connected at their bases with the
framework of the stove, and when the said framework is enclosed at its
sides each tray may or may not be isolated from the tray above or
below it, but if desired the trays may be enclosed in one case with a
truncated cone or pyramid placed above the upper one only. Suitable
openings or doors are fitted in the sides of the case to allow access to the
materials being cooked, or if desired the whole case may be constructed
to be raised by suitable pulleys, levers or otherwise, and thus leave the
trays holding the materials or articles, being cooked fully exposed on all
sidés for inspection.
The products of combustion and the vapors from the materials being
cooked are carried off by means of holes made in the case at a point just
above the base of the truncated cone or pyramid, and these holes may
be surrounded by an annular space or outside casing attached to the case*
whence the said products of combustion and vapours may be conducted
by pipes fitted with valves or otherwise to a flue, or carried in any other
suitable manner to the outside of the room or chamber in which the
apparatus is placed.
To adapt our Invention to the boiling of water or other liquids, or the
cooking of any materials by hot water or steam in the said stove, a
suitable boiler is fitted in any convenient part of the framework or case
of the same, and the heated air or products of combustion may be made to
pass round or through pipes fitted in such boiler and the heat therefrom
will be absorbed by the water or other liquid contained in the boiler.
Suitable cocks and other fittings are attached to the boiler for the purpose
of supplying or drawing off the liquid.
When this Invention is applied to apparatus for heating. rooms,.

page_text: conservatories, and the like by hot water or steam burners or orifices
constructed substantially as above described, are placed in the lower part
of a strong case, on the upper part of the latter is placed a boiler or
vessel containing water provided with a dome-shaped top on which
safety valves and suitable escape valves are fitted. The bottom of the
said boiler is attached to a pipe which passing through the whole length
of the case surrounding the burners terminates in a chamber or
reservoir fitted with non-return valves, and which is connected by pipes
to a cistern furnished with regulating cocks, whereby the level of the
water in the boiler is regulated and kept at the proper height. I extend
a pipe or pipes through the bottom of the boiler. The upper ends of
these pipes are within a short distance from the top of the dome, and
they pass through the whole length of the case surrounding the burners,
their lower ends being by means of suitable connections and regulating
valves attached to the pipes traversing the rooms or chambers to be
heated. When steam is to be used for heating, the level of the water in
the boiler is so regulated that it cannot flow over the pipes, the upper
ends of which terminate in the dome-shaped top, but when hot water is
the medium for heating, the boiler is filled so that the hot water may
pass down the pipes. After circulating through the rooms or other
places to be heated, and having given off its heat, it can by means of
return pipes connected with the chamber or reservoir be made again to
pass through the boiler and be reheated and again pass through the
circulating pipes, each time giving off the heat it has acquired in passing
through the boiler.
In adapting our Invention for heating the feed water of a steam boiler,
an apparatus similar to that above described can be applied, and the
water made to circulate through pipes enclosed by a suitable case
containing a burner or burners capable of consuming coal gas or other
combustible gas in combination with atmospheric air or otherwise. The
whole of the said apparatus may be made of any suitable material, and
in some instances it is preferred that the whole apparatus should be
coated with a suitable non-conducting substance, and if requisite an
outer casing may be fitted over the same to prevent injury to the said
non-conducting substance.