An Improvement in Burners for Incandescent Gas Lighting.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improvement in Burners for Incandescent Gas Lighting.
I ARTHUR CLARKE 161 Albion Road London, N., Engineer do hereby declare the
nature of this invention to be as follows :-
To overcome the disadvantage existing in incandescent burners that are provided
with a jet of gas for kindling the main atmospheric flame, viz. the deposit of carbon
upon the mantle.
It consists of a stop cock (to be used in conjunction with an atmospheric burner)
the shell as well as the plug of which has a gas way formed in it and terminate at.
separate nozzles with emission orifices in the mixing chamber of the burner. When
the plug is turned so that there is a free passage through it the main nozzle is.
supplied, otherwise the gas flows through the smaller way in the shell only, to the
minor or kindling nozzle; or if the plug of the cock he formed with a groove in:
it, extending partly round its circumference, so that sufficient gas can flow aroundi
it from an aperture connecting it with the way in the shell, to maintain a small jet.
from the nozzle that supplies the main flame, although the way in the plug is closed;
the second nozzle may he dispensed with.
In order to prevent ignition of gas within the mixing chamber a wire gauze disc is
provided in the lower portion of the burner cap.
Dated this 9th day December 1896.
An Improvement in Burners for Incandescent Gas Lighting.
I, ARTHUR CLARKE, of 161, Albion Road, Stoke Newington, London, N. Gas.
Engineer 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 bye-pass cocks for use in conjunction with burners of the
Bunsen kind, such as are used for heating the mantle of an incandescent gas light,.
providing means of maintaining a small "non-luminous" flame, ready for kindling
or increasing the main flame.
The object of this invention is to overcome the disadvantage existing in
incandescent burners that are provided with a "luminous" flame for kindling the.
main atmospheric flame, viz. the deposit of carbon.
This invention is illustrated in the accompanying drawings forming part of this
specification, wherein Fig. 1 is a vertical section of a bye-pass cock, having a separate
nozzle B for the kindling flame.
Fig. 2 is a vertical section of a bye-pass cock, in the plug of which a groove C is
formed, which permits gas to flow from the way A in the shell to the nozzle D,
sufficiently to maintain a flame at the burner head E, ready to be increased when
required by turning the plug so that there is a passage through it to the nozzle D.

page_text: A is the gas way in the shell, (having an adjustable screw a) in Fig. 1 it is continued
up into the mixing chamber of the burner by means of a small tube B, but in Fig. 2
this way is stopped at b..
C is the gas way in the plug.
D is the nozzle for supplying the main flame only in Fig. 1, but in Fig. 2 it
supplies the minor one also.
The effect of allowing the gas to escape at the main nozzle D in Fig. 1 is to
considerably reduce the pressure in the way A, but not sufficient to prevent the tube B
remaining charged, so let the main flame be extinguished ever so suddenly the kindling
flame is left ignited.
F indicates the position for the wire gauze disc to prevent the gas igniting at the
nozzle D; when being supplied through the way A only.
I shew a suitable form of burner but other forms are equally applicable to the
invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim' is
1. A cock with a bye-pass, having a separate nozzle for the kindling flame;
substantially as and for the purpose specified, in combination with a burner of the
Bunsen kind.
2. A cock with bye-pass and having a gas way round as well as through its plug;
substantially as and for the purpose described, in combination with a burner of the
Bunsen kind.
3. The combination of the parts illustrated by the accompanying drawings.