Improvements in Automatic Lighting Devices for Gas Stoves.
Year: 1895

page_text: COMPLETE SPECIFICATION.
Improvements in Automatic Lighting Devices for Gas Stoves.
I, WILLIAM JOHN GURD, of the City of London, in the Province of Ontario,
in the Dominion of Canada, Gentleman, 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:-
This invention relates to gas stoves and particularly to the means for lighting
the several burners with which they are provided for supplying the heat. The
object of my invention being to provide means whereby one or more of the several
burners, or series of burners, located at different points throughout the stove, may
be automatically lighted from one point, by a suitable controlling device or valve.
This object I secure by means of the construction and combination of the several
parts hereinafter set forth in detail and pointed out in the claims.
Reference to the drawings:-
Fig. 1, is a plan view of a stove, provided with my automatic lighting device, the
stove, with the exception of the burners, being shown in dotted lines only, in order
to more clearly show the arrangement of the lighting device in combination with
the several burners with which the stove is provided.
Fig. 2, is a side view of the same showing the upper or lower ranges or series of
burners.
Fig. 3, an end view, and Figs. 4, 5 and 6, enlarged detail views of the several
parts to be hereinafter referred to.
a represents the outline of the stove proper, which in the present instance shown,
is provided with an upper range of burners b, a series of oven burners b₁ and a
series of warming-oven burners 2, all being adapted for heating like named
compartments or parts with which such stoves are usually provided. These burners
are all connected with a supply pipe c, through which the gas is supplied to the
same, which said pipe is provided with a valve or cock cl by which the same is
regulated. The parts above referred to are of usual construction and not of my
present invention.
According to my invention, I provide a tube or system of tubes d, termed the
lighter tubes, which have connection with the supply pipe c and extend through the
stove in a position close or adjacent to the several burners or series of burners in a
manner as clearly illustrated in the drawings. These tubes may have a continuous
row of perforations, but in the present instance they are shown, provided with a
continuous longitudinal slit or opening d¹, of such size as to admit a slight escape
of gas along the tube, which when ignited at any point causes a flash or streak of
flame along the entire tube, or such portions of the system of tubes as may be
supplied with gas, and thus automatically light the several burners located adjacent
to or in contact with the same; it being understood that the gas is supplied to the
burners preliminary to the lighting of the lighter tubes as described.
In order that the escaping gas from the lighter tubes may be ignited automatically,
and also immediately upon such escape of gas after the tubes have been supplied
in order to prevent waste of the same, 1 provide a burner e, which is supplied from
the pipe c and is adapted to carry a permanent light, termed the pilot-light, with
which latter the entire system of lighter tubes has communication, in such manner
that the gas from all, or only a portion of the same as may be desired, may be
ignited, and thus light one or all of the several series of burners.
The supply of gas to the lighter tubes, in the present instance shown, is regulated
by two valves fand g; the valve f controlling the supply to the lighter tubes for

page_text: the upper range of burners, and the valve g for the lighter tubes of the lower range
of burners. When one of these valves, the valve fas an instance, is open to supply
the lighter tube, the escaping gas coming in contact with the adjacent pilot-light k,
ignites and instantly flashes along the entire length of the slit in the lighter tube
in a manner as already shown in Figure 1, and for the purpose hereinbefore set
forth.
It will thus be understood that by simply opening either one or both the valves f
and 9, either one or both of the upper and lower range of burners may be lighted
accordingly.
The valves and g, are adapted to be automatically returned to a normal closed
position, after the operator has opened and released the same, by means of a
spring located and acting on a projecting stem of said valve as clearly shown in
Figs. 5 and 6.
It will be understood that the pilot-light to perform its function, may be a mere
spark of flame and therefore the cost of continuing the same would be but slight,
while the many advantages secured by enabling the burners of the entire stove, or
such portion of them as may be desired, to be lighted at any time without other
act or operation than the simple turning or opening of a valve as before described,
will be obvious.
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. In a gas stove, the combination with the burners, of a pilot or permanent
light burner, a perforated or slitted lighter tube arranged and constructed, upon
being supplied with gas, to direct a light or flame from the pilot-light to the said
burners, and means for controlling the supply of gas to said lighter tube,
substantially as described and for the purpose set forth.
2. In a gas stove, the combination with the series of heating burners, of a tube
or system of tubes arranged and constructed upon being supplied with gas, to
receive a light or flame at any point and direct the same to said burners, and
means for controlling the supply of gas to said lighter tube or system of tubes,
substantially as described and for the purpose set forth.
66
"
3. In a gas stove, the combination with the heating burners, of a pilot-light
so called, a lighter tube provided with a longitudinal slit or opening therein,
forming a connection between said pilot-light and the burners and adapted to
direct the light or flame from the former to said heating burners, and means for
controlling the supply of gas to the lighter tubes, substantially as described and
for the purpose set forth.
4. In a gas stove, the combination with the heating burners, of a pilot or
permanent light, a lighter tube arranged and constructed upon being supplied with
gas to direct a light or flame from the pilot-light to said burners, and an
automatically closing valve for controlling the supply of gas to the lighter tube,
substantially as described and for the purpose set forth.
"
5. In a gas stove, the combination with a series of heating burners, of a "pilot-
light burner
so called, a tube or system of tubes arranged and constructed upon
being supplied with gas, to communicate or direct a light or flame from said pilot-
light to the several series of burners, and means for controlling and directing the
said light or flame to any desired heating burner or burners substantially as
described and for the purpose set forth.
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1.
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CA 100
WILLIAM JOHN GURD.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.