Improvements in and relating to the Combustion of Fuel in Domestic Fire Grates and Ranges.
Year: 1899

page_text: Improvements in and relating to the Combustion of Fuel in Domestic
Fire Grates and Ranges.
I, JAMES CHARLES MCLARDY, of 492, St. Vincent Street, in the County of the
City of Glasgow, Ironmonger, do hereby declare the nature of my invention
to be as follows:
This invention has reference to a new or improved method of burning fuel in
domestic fire grates and ranges and whereby improved combustion will take
place, with little or no emission of smoke.
According to my improvements I use an ordinary fire grate and beneath it, at
an air space distance say of a few inches. I fit a suitable vessel or receptacle
which may either be fixed or moveable. Into this vessel the fresh coal or fuel
is placed, and in starting a fire sticks or igniting agents are placed on top, while
cinders, coke, or a low class of fuel are placed in the ordinary fire grate above.
By this improved method the coal is ignited and the combustible gases
generated in the vessel below, combining with the oxygen in the intermediate
air space are consumed by the radiated heat in the ordinary open fire grate space
above, and complete combustion takes place.
The lower fuel receptacle would preferably be formed of less size than the upper
fire grate, to permit free ingress of air all round, and a hinged or moveable
screen could be fitted in front of air space and be raised or lowered to regulate
the draught, and so increase or lessen the amount of oxygen introduced.
Dated the 10th day of March 1899
W. R. M. THOMPSON & Co.,
96, Buchanan Street, Glasgow, Agents.
Improvements in and relating to the Combustion of Fuel in Domestic
Fire Grates and Ranges.
I. JAMES CHARLES MCLARDY, of 492, St. Vincent Street, in the County of the
City of Glasgow, Ironmonger, do hereby declare the nature of my invention
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement in writing reference being
made to the accompanying drawings.
This invention has reference to a new or improved method of burning fuel in
domestic fire grates and ranges and whereby improved combustion will take
place, with little or no emission of smoke.

page_text: And in order that my said invention and the manner of carrying same into
practice may be properly understood I have hereunto appended a sheet of
explanatory drawings in which Figure 1 is a front elevation and Figure 2 a
plan view of a domestic fire grate as constructed and arranged according to my
improvements. Figure 3 is a side sectional elevation and Figure 4a similar
view at right angles thereto as taken on the line 2-2 of Figure 2.
Referring to these drawings:-
According to my improvements I use an ordinary fire grate A and beneath it.
at an air space distance A' say of a few inches, I fit a suitable vessel or receptacle B
which may either be fixed or moveable. Inio this vessel B the. fresh coal or
fuel is placed, and in starting a fire. sticks or igniting agents are placed on
top, while anthracite cinders. coke. or a low class of fuel are placed in the
ordinary fire grate A above.
By this improved method the coal is ignited and the combustible gases
generated in the vessel B below, combining with the oxygen in the intermediate.
air space A are consumed by the radiated heat in the ordinary open fire grate
space above, and complete combustion takes place.
The lower fuel receptacle B would preferably be formed of less size than
the upper fire grate A to permit free ingress of air all round, ad a hinged or
moveable screen C would be fitted in front of air space A and he swivelled or
raised or lowered to regulate the draught, and so increase or lessen the amount
of exygen introduced.
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:-
First. In domestic fire grates and ranges the method of burning fuel, sub-
stantially as set forth.
Second. In domestic fire grates and ranges, a vessel or receptacle for burning
fuel in combination with an ordinary fire grate located above it with an inter-
vening air space between them, substantially as set forth.
Dated the 9th January 1900.
W. R. M. THOMPSON & Co..
96, Buchanan Street, Glasgow, Agents.