IMPROVEMENTS.! IN INCANDESCENT GAS BURNERS
Year: 1884

page_text: ALEXANDER MELVILLE CLARK, of the firm of A. M and WClark, of
53, Chancery Lane,, in the county of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said invention for "IMPROVEMENTS.!
IN INCANDESCENT GAS BURNERS" (a communication to me from abroad by Victor!
Popp of Paris, France,) to be as follows:-
{ale;
This Invention relates to improvements in gas lighting apparatus based on a
former Patent dated September 13th 1882 N° 4416, for a system of illumination
in which a mixture of gas and air is effected in connection with a burner of special
construction as, therein described and the invention consists in certain improve-
ments in the said burner which is represented by way of example, in the
accompanying drawing.
Figure 1. is a central vertical section and figure 2 an elevation of the improved
burner.
In this system of illumination as described in the former patent referred to the.
supporter of combustion is mixed with the combustible gas before or near to its
arrival at the burner, the mixing being effected by branching on to the gas supply
pipe a, a pipe b by which air is supplied at a suitable pressure.
.
The current of air thus carries the gas along and mixes with it before arriving.
at the burner. The supply of air and gas in pipes a and b may be regulated by
means of two cocks, on the plugs of which are keyed two toothed sectors e gearing:
together; a key f serves for working one of the cocks, the movement of which
controls that of the other.
The burner proper fixed at the extremity of the pipe just referred to is arranged
in the following manner.
+
It is composed of a cup d of wrought or cast iron into which at a certain fixed'
height opens the pipe conveying the mixture of gas and on which rests a' cap m of
refractory material pierced with oblique holes. This cap is again covered (but
with a fixed space between them) with a thimble of sheet platinum n perforated
with a great number of holes or of platinum gauze. The gaseous mixture
superheated by conduction in the cap and in the aúnular space of the cast-iron
cup, renders incandescent the platinum thimble which thus becoines the luminous

page_text: centre. In situations where the double set of pipes presents inconvenience, the
air and gas can be mixed immediately, on leaving the gas meter, the apparatus
consisting of a kind of blow pipe as above described and the burner being fitted
with one pipe and one cock. This burner can be screwed in place of a gas burner
of the ordinary type.. Besides the improved illumination a considerable economy
in the gas, amounting in certain cases to more than 60% is obtained by this
system.
1, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Win. Clark, of
53, Chancery Lane, in the County, of Middlesex, Fellow of the Institute of Patent
Agents do hereby declare the nature of the said "Invention for "IMPROVEMENTS
IN INCANDESCENTIGAS BURNERS" (a communication to me from abroad by Victor"
Popp of Paris, France) 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 improvements in gas lighting apparatus based on a
former-Patent dated September 13th 1882 No 4416, for a system of illumination in
which a mixture of gas and air is effected in connection with a burner of special"
construction as therein described and the invention consists in certain improve
ments in the said burner which is represented by way of example in the
accompanying drawing.
Figure is a central vertical section and figure 2 an elevation of the improved
burner. In this system of illumination as described in the former patent referred
to the supporter of combustion is mixed with the combustible gas before or near
to its arrival at the burner, the mixing, being effected by branching on to the gas
supply pipe a, a pipe by, which air is supplied at a suitable pressure
The current of air thus carries the gas along and mixes with it before arriving
at the burner. The supply of air and gas in pipes a and "may be regulated by
means of two cocks, on the plugs of which are keyed two toothed sectors gearing
together a key. f. serves for working one of the cocks, the movement of which
controls that of the other.
The burner proper fixed at the extremity of the pipe just referred to, is arranged
in the following manner.
It is composed of a cup d of wrought or cast iron into which at a certain-fixed
height opens the pipe conveying, the mixture of gas and on which rests a cap m'of
refractory material pierced with oblique holes. This cap is again covered (but with
a fixed space between them) with a thimble of sheet platinum'n perforated with a
great number of holes or of platinum gauze. The gaseous mixture superheated by
conduction in the cap and in the aunular space of the cast iront cup renders
incandescent the platinum thimble which thus becomes the luminous centre. In
situations where the double set of pipes presents inconvenience; the air and gas
can be mixed immediately on leaving the gas meter; the apparatus consisting of a
kind of blow pipe as above described and the burner being fitted with one pipe

page_text: and oue cock only. This burner can be screwed on in place of a gas burner of the
ordinary type. Considerable economy in the consumption of gas amounting in
certain cases to more than 60% is obtained by using this improved burner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed 1 declare that what I
claim is :-
:―
In a system of illumination in which a mixture of gas and air is effected either
previous to or near its arrival at the burner, constructing the latter of a
combination of two pipes a b, with sector cocks c, the metal cup d, the obliquely
perforated cap m and the perforated platinum thimble n as described for the
purpose specified.

page_text: PROVISIONAL SPECIFICATION.
I ALEXANDER MELVILLE CLARK, of the firm of A: M and W Clark, of
53, Chancery Lane, in the county of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said invention for "IMPROVEMENTS
IN INCANDESCENT GAS BURNERS" (a communication to me from abroad by Victor
Popp of Paris, France,) to be as follows:-
This Invention relates to improvements' in gas lighting apparatus based on a
former Patent dated September 13th 1882- No 4416, for a system of illumination
in which a mixture of gas and air is effected in connection' with a burner of special
construction as therein described and the invention consists in certain improve-
ments in the said burner which is represented by way of example, in the
accompanying drawing.
Figure 1 is a central vertical section and figure 2 an elevation of the improved
burner.
In this system of illumination as described in the former patent réferred to the
supporter of combustion is mixed with the combustible gas before or near to its
arrival at the burner, the mixing being effected by branching on to the gas supply
pipe a, a pipe b by which air is supplied at a suitable pressure.
1711
The current of air thus carries the gas along and mixes with it before arriving
at the burner The supply of ‘air and gas in pipes a and b may be regulated by
means of two cocks, on the plugs of which are keyed two toothed sectors c gearing
together; a key f serves for working one of the cocks, the movement of which
controls that of the other,
The burner proper fixed at the extremity of the pipe just referred to is arranged
in the following manner.
It is composed of a cup d of wrought or cast iron into which at a certain fixed
height opens the pipe conveying the mixture of gas and on which rests a cáp m of
refractory material pierced with oblique holes. This cap is again covered (but
with a fixed space between them) with a' thimble of sheet platinum n perforated
with a great number of holes or of platinum gauze. The gaseous mixture
superheated by conduction in the cap and in the annular space of the cast iron
cup renders incandescent the platinum thimble which thus becomes the luminous
Pin G21

page_text: centre. In situations where the double set of pipes presents inconvenience, the
air and gas can be mixed immediately on leaving the gas meter, the apparatus
consisting of a kind of blow pipe as above described and the burner being fitted
with one pipe and one cock. This burner can be screwed in place of a gas burner
of the ordinary type. Besides the improved illumination a considerable economy
in the gas, amounting in certain cases to more than 60 % is obtained by this
system.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN INCANDESCENT GAS BURNERS" (a communication to me from abroad by Victor
Popp of Paris, France) 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 improvements in gas lighting apparatus based on a
former Patent dated September 13th 1882 N° 4416, for a system of illumination in
which a mixture of gas and air is effected in connection with a burner of special
. construction as therein described and the invention consists in certain improve-
ments in the said burner which is represented by way of example in the
accompanying drawing.
Figure 1 is a central vertical section and figure 2 an elevation of the improved
.burner. In this system of illumination as described in the former patent referred
to, the supporter of combustion is mixed with the combustible gas before or near
to its arrival at the burner, the mixing being effected by branching on to the gas
supply pipe a, a pipe b by which air is supplied at a suitable pressure.
F
The current of air thus carries the gas along and mixes with it before arriving
at the burner. The supply of air and gas in pipes a and b may be regulated by
means of two cocks, on the plugs of which are keyed two, toothed sectors c gearing
together; a key f serves for working one of the cocks, the movement of which
controls that of the other.
The burner proper fixed at the extremity of the pipe just referred to, is arranged
in the following manner.
It is composed of a cup d of wrought or cast iron into which at a certain fixed
height opens the pipe conveying the mixture of gas and on which rests a cap m of
refractory material pierced with oblique holes. This cap is again covered (but with
a fixed space between them) with a thimble of sheet platinum n perforated with a
great number of holes or of platinum gauze. The gaseous mixture superheated by
conduction in the cap and in the annular space of the cast iron cup renders
incandescent the platinum thimble which thus becomes the luminous centre. In
situations where the double set of pipes presents inconvenience, the air and gas
can be mixed immediately on leaving the gas meter; the apparatus consisting of a
kind of blow pipe as above described and the burner being fitted with one pipe

page_text: and one cock only. This burner can be screwed on in place of a gas burner of the
ordinary type. Considerable economy in the consumption of gas amounting in
certain cases to more than 60 % is obtained by using this improved burner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
In a system of illumination in which a mixture of gas and air is effected either
previous to or near its arrival at the burner, constructing the latter of a
combination of two pipes a b, with sector cocks c, the metal cup d, the obliquely
perforated cap m and the perforated platinum thimble n as described for the
purpose specified.