Improved Means for Regulating the Admission of Gas and Air in Atmospheric Burners and for Supplying Gas Engines.
Year: 1890

page_text: Date of Application, 11th Feb., 1890
Complete Specification Left, 11th Nov., 1890-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
Improved Means for Regulating the Admission of Gas and Air in
Atmospheric Burners and for Supplying Gas Engines.
I, WILLIAM SCOLLAY, of 10 Millard Road, Stoke Newington, Middlesex, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to a novel construction or arrangement of parts constituting
an atmospheric burner by which the supply of air can be regulated by one portion
and the supply of gas by another portion for regulating the heat.
The invention is chiefly intended for cooking purposes, such as for heating ovens,
boilers, and the like, it is also applicable for metallurgical and other processes, in
which an atmospheric burner can be employed.
For the purpose of my invention, I attach to an ordinary gas supply pipe, prefer-
ably by screw, a nozzle which is perforated near its shoulder for the passage of gas.
The nozzle is of tapered, or cone shape and projects into a seating formed in a
partition of an intermediate tube, which intermediate tube can be turned to regulate
the quantity of gas passing through between the nozzle tip and the seating.
Above the partition of the intermediate tube, I arrange a series of slots, which can
be covered more or less by another tube arranged on the outside and capable of
being turned for regulating the entry of air into what might be termed the mixing
chamber.
This outside tube may be of any desired length but it is capable of being raised
or lowered, or of being set nearer to, or farther from the oven, boiler, or other
apparatus to which the heat has to be applied or the apparatus can be employed for
supplying the mixture to a gas engine.
The outer tube may have vertical slots to coincide with vertical slots of the inter-
mediate tube to regulate the quantity of air admitted but if the intermediate tube
alone be slotted, or it may be perforated, the outer tube may be raised to uncover the
said slots or perforations.
By this invention, the entry of air is regulated independently to that of the gas.
Dated this 11th das at
1000
H. GARDNER,
166, Fleet Street, London, Agent for the said William Scollay.
COMPLETE SPECIFICATION.
Improved Means for Regulating the Admission of Gas and Air in
Atmospheric Burners and for Supplying Gas Engines.
I, WILLIAM SCOLLAY, of 10 Millard Road, Stoke Newington, Middlesex, 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 a novel construction or arrangement of parts constituting
an atmospheric burner by which the supply of air can be regulated by one portion
and the supply of gas by another portion for regulating the heat.
The invention is chiefly intended for cooking purposes, such as for heating ovens,
boilers, and the like, it is also applicable for metallurgical and other processes, in
which an atmospheric burner can be employed.
For the purpose of my invention, I attach to an ordinary gas supply pipe, prefer-
ably by screw, a plug which is perforated near its shoulders for the passage of gas.
The plug is of tapered or cone shape and projects into the seating of a nozzle formed

page_text: in a partition of an intermediate tube which can be turned to regulate the quantity
of gas passing through between the plug tip and the nozzle.
Above the partition of the intermediate tube, 1 arrange a series of slots which can
be covered more or less by another tube arranged on the outside and capable of
being turned for regulating the entry of air into what might be termed the mixing
chamber.
This outside tube may be of any desired length but it is capable of being raised
or lowered, or of being set nearer to, or farther from the oven, boiler, or other
apparatus to which the heat has to be applied, or the apparatus can be employed for
supplying the mixture to a gas engine.
The outer tube may have vertical slots to coincide with vertical slots of the inter-
mediate tube to regulate the quantity of air admitted but if the intermediate tube
alone be slotted, or it may be perforated, the outer tube may be raised to uncover
the said slots or perforations.
By this invention, the entry of air is regulated independently to that of the gas.
My invention will be clearly understood by the annexed drawings.
Figure 1 is a sectional elevation of one arrangement of apparatus.
Figure 2 an exterior elevation of the same.
Figure 3 a sectional elevation of a slightly modified apparatus, and
Figure 4 an exterior elevation of the same.
Figure 5 is a perspective part sectional elevation of the gas issuing nozzle portion
with a perforated cap thereon for the gas to enter the mixing chamber in fine
streams instead of in a column or quantity as by the nozzles shown at Figures 1
and 3.
Referring to Figures 1 and 2, A is conical ended plug to be affixed to a gas supply
pipe at its base B and provided with holes C, C, through which gas can pass.
D is a nozzle with a conical shaped aperture at its upper central part, the lower
part D being screw threaded to enable it to be lowered or raised to regulate the
passage of gas between the conical plug and the conical aperture.
The nozzle has a kind of outer upper shell E and is formed with slotted holes
which coincide with similar holes in a sleeve or outer tube F which is free to be
turned to cover or uncover the holes in E according to the desired quantity of air to
be admitted for mixing with the gas in the chamber & for perfect combustion according
to the pressure of the gas supplied to the apparatus.
I propose to place asbestos sheeting around the tube G as a non-conductor of heat.
to enable the outer tube to be turned by hand for the air admission and said tube can
be fixed by the set screw, such as I show at a, Figure 4.
The mixing chamber G is tubular and the Bunsen or atmospheric flame burns
with full intensity at the top at H.
According to Figures 1 and 2, the nozzle D, D' is turned upon the plug to
regulate the passage for the gas but in Figures 3 and 4, the plug A is turned in
the nozzle 1 by the outside handle or key I, the stem J of the plug being screw
threaded to work in a threaded collar K secured in a gas tight manner by packing
and by an outside cap L, the neck of which has a screw pin 6 for enabling the stem J
and the plug A to be fixed when properly-adjusted.
The arrangements of apparatus thus described is applicable in districts where the
gas is supplied at high pressure, the gas passing out of the nozzle as a single jet,
but by screwing on a perforated end N, as at Figure 5, to a supply under a low
pressure an efficient atmospheric flame can be produced at H.
The advantages arising from the above constructed and arranged apparatus are:-
1. A perfect admixture of gas and air.
2. An entire absence of back flash.
3. A flame cannot burn at the nozzle.
4. The ease by which the supply of. air can be regulated and the air passages
adjusted.
5. The facility of adapting the apparatus for high or for low
gas of various qualities.
pressures of
gas, or for

page_text: I am aware that apparatus have hitherto been patented for the same object as that
for which my invention is intended, and I therefore make no claim broadly to a
combined gas and air regulator for combustion by atmospheric flame.
If the gas and air in proportionate quantities be required for supplying gas
engines, the mixture from the chamber G is led to the inlet port for that purpose.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what 1
claim is
1. The apparatus shown at Figures 1 and 2 of the annexed drawings arranged
and adapted for the purpose described.
2. The apparatus shown at Figures 3 and 4 of the annexed drawings arranged and
adapted for the purpose set forth.
3. In a gas and air regulating apparatus for the purpose specified, the fixed
plug and movable regulating nozzle, substantially as shown at Figures 1 and 2 of
the annexed drawings.
4. In an atmospheric burner apparatus, a screw adjusting plug and the means for
affixing it in relation to a fixed nozzle, as described and substantially as shown at
Figure 3 of the annexed drawings.
5. The means by which atmospheric burners of the kind hereinbefore described
can be made available for district pressures of gas (high and low) as set forth with
reference to the annexed drawings.
The 11th day of November LoJU.
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said William Scollay.