Improvements in Apparatus for Controlling Bye-pass or Flash- light Burners.
Year: 1898

page_text: PROVISIONAL DIECIFICATION.
Improvements in Apparatus for Controlling Bye-pass or Flash-
light Burners.
We, CHARLES WHITE, of Blaenavon, Monmouth, Gas and Water Works Manager,
and THOMAS HERBERT WHITE, of Cwmbran, Monmouth, Gas Works Manager, do
hereby declare the nature of this invention to be as follows:-
This invention refers to self lighting burners in which a jet light is formed by
means of a bye pass which opens as the main supply closes and closes while the main
burner is alight.
It consists of an inlet nozzle above which is a gas chamber. A flexible horizontal
diaphragm divides this gas chamber from an air chamber above it. Through this
diaphragm passes the open lower end of a tube which rises vertically through a second
flexible diaphragmn, much smaller than the first, over the air chamber, and ultimately
penetrates a fixed horizontal plate, and is closed at its upper end. This tube is so
attached to the two flexible diaphragms by means of nuts or in any suitable way,
that it rises and falls with the diaphragms according to the pressure of the gas. At
the upper end of the vertical tube are holes for the escape of the gas, and above and
below these holes are fixed two cone-shaped stops which engage alternately with the
horizontal plate.
This plate closes the entrance to the main burner, and the stops are so arranged
that when the gas is turned on, and the diaphragms rise, the perforated part of the
vertical tube rises above the horizontal plate and thus allows the gas to pass upwards
to the burner.
When the gas is turned off and the diaphragms fall, the perforated part of the
vertical tube sinks below the said horizontal plate, and the gas passes only to the
tube leading to the flash light. A bye pass in the tap permits sufficient gas to flow
to feed the flash light.
An air hole which may be regulable is placed in the air chamber and allows the
lower diaphragm to work as slowly as is required to ensure the necessary time for
the transfer of the ignition from the flash light to the burner and the reverse.
Dated this 4th day of March 1898.
S. S. BROMHEAD,
Agent for Applicant, 171, Queen Victoria Street, London..
Improvements in Apparatus for Controlling Bye-pass or Flash-
light Burners.
We, CHARLES WHITE, of Blaenavon, Monmouth, Gas and Water Works Manager,
and THOMAS HERbert White, of Cwinbran, Monmouth, Gas Works Manager, do

page_text: hereby declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention refers to self lighting burners in which a jet of light is formed by
means of a bye pass which opens as the main supply closes, and closes while the main
burner is alight.
It consists of an inlet nozzle above which is a gas chamber. A flexible horizontal
diaphragm divides this gas chamber from the air chamber above it. An inverted cup
of thin metal may be substituted, the lower edge dipping into an annular space con-
taining mercury or other preferred liquid. Through this diaphragm and attached
thereto passes the open lower end of a tube which rises vertically through a second
flexible diaphragm, much smaller than the first, over the air chamber and ultimately
penetrates a fixed horizontal plate, and is closed at its upper end.
the gas.
This tube is so attached to the two flexible diaphragms by means of nuts or in any
suitable way that it rises and falls with the diaphragms according to the pressure of
At the upper end of the vertical tube are holes for the escape of the gas
and above and below these holes are fixed two cone shaped stops which engage alter-
nately with the horizontal plate. This plate closes the entrance to the main burner,
and the stops are so arranged that when the gas is turned on, and the diaphragms
rise, the perforated part of the vertical tube rises above the horizontal plate and thus
allows the gas to pass upwards to the burner. When the gas is turned off and the
diaphragms fall, the perforated part of the vertical tube sinks below the said horizontal
plate, and the gas passes only to the tube leading to the flash-light. A bye pass in
the tap permits sufficient gas to flow to feed the flash-light. An air-hole which may
be regulable is placed in the air chamber and allows the lower diaphragm to work as
slowly as is required to ensure the necessary time for the transfer of the ignition
from the flash-light to the burner and the reverse.
We will now describe the invention with reference to the accompanying drawings
in which
Fig. 1. Shows a sectional elevation of our improved automatic Bash-light
burner.
Fig. 2. Shows EL sectional elevation of a modification of same hereafter
described.
Referring to Fig. 1, a is a gas chamber above which is disposed an air chamber b,
the two chambers being separated by the flexible diaphragm c. The gas is admitted
to the gas chamber by an inlet tube a¹ and ascends the pipe d, the lower end of
which is open to the gas chamber a, and is attached in any suitable way to the
diaphragin c. The pipe d as it passes upwards extends through the air chamber,
and also through a second and smaller diaphragm e which separates the air cham-
ber from a second gas chamber f above it. In one side of this chamber fis
arranged the bye pass supply pipe y, the main supply pipe being arranged in
the top of the chamber f.
The gas is controlled in the following manner :-
The upper part of the pipe d, the end of which is closed and which is furnished
with a number of holes or orifices d, passes through a plate ¹ placed across the
lower end of the main supply pipe h. When the main burner is required to be
lit, the gas control tap is turned on and the consequent pressure of gas causes
the diaphragm c to rise, which raises the pipe & thereby bringing the orifices d'
above the level of the plate h¹ and thus cutting off the gas from the flash-light
tube g and delivering it into the main burner supply pipe h. When the gas is
turned off the bye-pass in the tap remains open and the decreased pressure of
gas causes the diaphragm c to fall, thus lowering the pipe d and thereby bringing
the orifices d¹ below the level of the plate h¹, thereby cutting off the main pipe h,
and leaving the flash-light burning. Stops are provided to prevent any possible
escape of gas. To permit the diaphragm c to act in the way required, an air

page_text: hole of suitable size is provided in the air chamber b. The hole b¹ is preferably
made adjustable by a screw or other device.
Referring to Fig. 2. The diaphragm c may as shown be replaced by an in-
verted cup j, the lower edge of which dips into an annular space containing
mercury or other suitable liquid thus forming a seal to the gas chamber a similar
to that obtained by the device shown in Fig. 1.
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
In an auto flash-light burner furnished with a bye-pass for relighting and in which
the said bye-pass is closed, while the burner is alight, the several chambers a, b, f,
the diaphragm c or cap and seal j, k, the diaphragm e, plate h¹ and tube d, with
stops orifices d¹ and bye pass tube g, as herein described and set forth.
Dated this 4th day of Tul 1000
S. S. BROMHEAD.
Agent for Applicants, 171, Queen Victoria Street, London, E.C.