A Fireplace for Continuous Burning or a Charge of Coals.
Year: 1885

page_text: A Fireplace for Continuous Burning or a Charge of Coals.
i
I, OLIVER IMRAY of N° 28 Southampton Buildings, Chancery Lane, in the
county of Middlesex, Fellow of the Institute of Patent Agents do hereby declare
the nature of my invention for "A FIREPLACE FOR CONTINUOUS, BURNING OF A
CHARGE OF COALS" to be as follows:―
This invention relates to the construction and arrangement of fire place such
that after being supplied with a charge of coals they will go on continuously
burning for a considerable period, such as 24 hours, without requiring more atten-
tion than is necessary for opening and closing certain air supply apertures. The
cavity of the fire place encased by brickwork has a feed opening at the top closed
by a cover, and at the bottom an inclined grate leaving passage for ashes behind it
to an ash-pit below which is closed tightly by a door. Through the front wall there
are openings for air at different heights, each provided with a cover, and behind
there is a passage for flame to the heating chamber, a pipe leading to this passage
such air as may be required to effect complete combustion of the gaseous products.
The cavity being charged with coals which are kindled at the bottom, the lowest
air-hole is opened and combustion of the lowest layer of fuel goes on, this causing
the upper layers to become caked so that they form, as it were, an arch burning on
its lower face. As the combustion goes on, a higher and higher air hole is opened
so as to supply air at or near the burning level.

page_text: I, OLIVER IMRAY of N° 28 Southampton Buildings, Chancery Lane, in the
County of Middlesex, Fellow of the Institute of Patent Agents 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 invention relates to the construction and arrangement of a fire place such
that after being supplied with a charge of coals they will go on continuously
burning for a considerable period such as 24 hours, without requiring more
attention than is necessary for opening and closing certain air supply apertures.
The cavity of the fire place encased by brickwork has a feed opening at the top
closed by a cover, and at the bottom an inclined grate leaving passage for ashes
behind it to an ash-pit below, which is closed tightly by a door. Through the
front wall there are openings for air at different heights, each provided with a
cover, and behind there is a passage for the flame to the heating chamber, a pipe
leading to this passage such air as may be required to effect complete combustion
of the gaseous products. The cavity being charged with coals which are kindled
at the bottom, the lowest air-hole is opened and combustion of the lowest layer of
fuel goes on, this causing the upper layers to become caked so that they form, as it
were, an arch burning on its lower face. As the combustion goes on, a higher and
higher air hole is opened so as to supply air at or near the burning level.
Fig. 1 of the accompanying drawings shews a vertical longitudinal section of a
fireplace constructed according to the above described invention, Fig. 2 shews a
part front view and part cross section on line L M Fig. 1. Fig. 3 shews a part plan
and part horizontal section on line O P Fig. 1.
A is the ash pit closed tightly by a door secured by a screw. B is an inclined
grate, between the lower end of which and the brickwork K. sufficient space is left
to allow the clinkers to pass. C is the flue through which the flames and
combustion-gases pass into the heating chamber at H of the stove, or other space
for receiving direct heat. Into this flue opens a tube G supplying air from the
outside in case the gases produced in the combustion chamber D are of a com-
bustible nature, requiring a further supply of air to effect their complete
combustion. The action of the fireplace in this respect will depend upon the
size of the air hole E, which may either be large enough to admit a sufficient air
supply to effect the complete combustion, or only of sufficient size to allow of
incomplete combustion.
The tube G which may be opened or closed at will, may also be provided with
a small reflecting mirror, for shewing the nature of the flame in the flue.
D is the combustion chamber which is charged with coal, its capacity being
proportioned to the length of time during which the charge is required to burn
without renewal E E E are the apertures for the admission of air, arranged one
above the other, and closed by stoppers, so that by opening any one of these the
air supply, and consequently the combustion can be carried on at any desired
point. A stoking tool may also be introduced through these holes if desired.

page_text: F is the charging opening, closed by a cover L provided with a sand lute. I is
a passage leading into the heating chamber H, for removing therefrom any fuel or
ashes that may fall into it from the flue C.
It will be seen that by the above described arrangement, if the fuel should
happen to cake or scaffold in the combustion chamber, the combustion can always
be maintained by shifting the point at which the air is admitted to the part of the
chamber where the fuel is situated.
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:-
The construction of fire places having a combustion chamber charged with a
column of fuel, and provided with a series of stoppered air holes situated at
different heights so that the requisite air supply can be admitted at the part of the
column of fuel where the combustion requires to take place.
ABEL & IMRAY,
Agents for the Applicant.