Improvements in Incandescent Gas Fires.
Year: 1892

page_text: Date of Application, 31st May, 1892
Complete Specification Left, 25th Feb., 1893-Accepted, 6th May, 1893
PROVISIONAL SPECIFICATION.
.Improvements in Incandescent Gas Fires.
We, DANIEL MCINNES and ARCHIBALD MCLACHLAN, both of 258 George
Street, Glasgow, in the County of Lanark, Gas Appliances Manufacturers, do
hereby declare the nature of this invention to be as follows:-
This invention which relates to incandescent gas fires has for its object to effect
more complete combustion of the gas and to afford greater radiation of heat than
with gas fires as hitherto constructed.
Under the invention there is placed on the sole or hearth of an ordinary fire
grate or of a specially constructed grate or stove a burner shaped to correspond
with the configuration of the sole or hearth and composed of two plates bolted,
rivetted or otherwise secured together. Between these plates a channel extending
round both the front and back of the burner is made and in communication with
the said channel there is provided a knee connected to the gas supply pipe at its
outer end whilst its inner end in communication with the channel is rose shaped or
has a number of small orifices through which the gas issues and sweeps in both
directions towards the front of the burner.
Openings are made for the inlet of air and at the front of the channel a series
of openings are formed for the issue of gas jets.
Above this burner there is placed within the fire place a back made of fire
brick or other refractory material having its face raggied or formed with a number
of points or projections. At the sides or jambs of the fire place there are also
inserted above the burner and extending from the fire brick back to the front of
the grate two supports of fire brick or other refractory material the said supports
having jaws or heels made on them on which the frets extending across the front
of the fire and also made of fire brick or other refractory material are rested.
With this arrangement more complete combustion of the gas and radiation of
heat is obtained.
Dated this Thintieth day of Mov 180
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Incandescent Gas Fires.
We, DANIEL MINNES and ARCHIBALD MCLACHLAN both of 258 George
Street, Glasgow, in the County of Lanark, Gas Appliances Manufacturers, 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 which relates to incandescent gas fires has for its object to effect
more complete combustion of the gas and to afford greater radiation of heat than
with gas fires as hitherto constructed.
The invention is illustrated in front elevation by Figure 1 and in cross section
by Figure 2 of the accompanying drawings, Figures 3 and 4 being plans of the
upper and under sides of the burner preferably used whilst Figure 5 is a cross
section of the fire place of the grate.
Under the invention there is placed on the sole or hearth a of an ordinary fire
grate or of a specially constructed grate or stove a burner shaped to correspond

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with the configuration of the sole or hearth and composed of two plates b, b¹, bolted,
rivetted or otherwise secured together. Between these plates a channel c extending
round both the front and back of the burner is made and in communication with
the said channel there is provided a knee d connected at its lower end to the gas
supply pipe whilst its upper part is in communication with the channel c is rose
shaped or has a number of small orifices through which the gas issues and sweeps
in both directions towards the front of the burner.
Openings are made in the burner for the inlet of air and at the front of the
channel ca series of orifices fare formed for the issue of gas jets.
Above the burner there is placed within the fire place a back g.made of fire brick
or other refractory material having its face raggled or formed with a number of
points or projections. On the sides or jambs h of the fire place there are formed
above the burner two supports i of fire brick or other refractory material the said
supports having jaws or heels made on them on which frets extending across the
front of the fire and also made of fire brick or other refractory material are
rested.
The frets as more particularly shewn by Figure 2 are arranged in series an upper
fret j being rested on the top heel and curving or inclining therefrom to the upper
part of the back g, against which it abuts. In front of the fret j another fret j¹ is
supported on an intermediate heel its upper part curving or inclining back to
and resting on the first mentioned fret whilst a third. fret 2 rests on the lowest
heel and curves or inclines rearwards therefrom to the back g against which it
abuts, and in front of the three frets j, j, another fret ja is placed its lower end
resting upon the upper part 6 of the burner whilst its upper part rests on the
fret j.
The jambs h and back 9 instead of being formed separately may be made in one
piece and any other desired number of separate fire-clay or other refractory frets
may be inserted in the grate one in front of another. The result of the arrange-
ment is that more complete combustion of the gas and more perfect radiation of
heat is obtained whilst by its subdivision as described the fret work is more readily
repaired or removed than with ordinary construction of gas fires.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In an incandescent gas fire the employment of a fire clay or other refractory
fret composed of a series of segments or separate pieces supported and built up,
substantially as described with reference to the accompanying drawings.
2. An incandescent gas fire arranged substantially as set forth with reference to
the drawings annexed."
Dated this 24th day of February 1893
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.