Improvements in or Additions to Atmospheric Gas and Vapour Burners for Various Purposes.
Year: 1896

page_text: Date of Application, 6th Nov., 1896
Complete Specification Left, 27th Aug., 1897-Accepted, 2nd Oct., 1897
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Atmospheric Gas and Vapour
Burners for Various Purposes.
I, ERNEST EDWARD LEWIS of 2 Greenhill Street, Stratford-on-Avon, in the
County of Warwick, Gas Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in, or additions to, atmospheric gas and
vapour burners, for gas and other stoves, muffles and furnaces, and cooking or
other general heating appliances, incandescent lamps, and other purposes, and
has for its object, a further or increased inclusion of atmospheric air with the
combustible gas or vapour that is obtained with the ordinary air inlet as now
employed.
By my improvements, an intense heat is generated by the combustion of the
gas or vapour mixed with a large amount of atmospheric air.
In carrying out my invention, I take an elongated U or other shaped mixing
chamber or chambers leading to a jet or jets whereat the mixture is burned.
The entrance to the mixing chamber may be enlarged or formed bell-mouthed,
wherein one, two or other number of funnel or like shaped cups or open-ended
leads or mouths separated from each other by divisional spaces, are located with
their nozzles disposed in an axial line and pointing all in the same direction, all
the said cups being in a nest, i.e. one within the other. Thus, the nozzle end of
one cup is located within the mouth of the cup in advance, whose nozzle, in its
turn, is located in the mouth of a cup in further advance thereof, and so on, whilst
the nozzle end of the innermost cup or air collector lies within the entrance to the
mixing chamber and comes in front of a vane, fan or blower, which is rotated by
the entering of gas or fluid rotating the fan, thus sucking in air and gas and
creating a further forced draught and intimately intermingling the atmospheric
air and the combustible gas or vapour. After being delivered from the fan or
blower, the gaseous mixture passes up the passages of the U or other shaped
mixing chamber to the burner or jet at which it is consumed.
The delivery nozzle of the gas supply pipe enters the flared end of the outermost
cup of the series and thence passes successively through the nozzles of all the cups
and into the entrance to the mixing chamber. Atmospheric air flows up each of
the annular spaces separating the cups and intermingles with the flowing gas,
which becomes more and more charged with air thus collected as it proceeds.
I need not necessarily employ a mechanical mixer or forced draught, as the act
of air passing through one of the conical mouths of the collector is sufficient to
create the necessary suction, current or draught.
The fan or blower may if necessary be driven by a spring which is driven by
clock work or other mechanical means, and agitators or mixers may be placed in
the body of the mixing chamber. Such burners may either be arranged singly or
in series according to the nature of the apparatus with which they are to be used,

page_text: and besides the gas or vapour being highly charged with air, the said gas and air
are thoroughly mixed, and the gas is prevented from lighting back to the inlet jet.
I do not confine myself to the shape of the cups or collectors, which may be
cylindrical or varied in any way so long as they are arranged in series and
separated from each other by intervening spaces open to the air.
Dated this 5th day of November 1896.
Improvements in or Additions to Atmospheric Gas and Vapour
Burners for Various Purposes.
I, ERNEST EDWARD LEWIS of 2 Greenhill Street, Stratford-on-Avon, in the
County of Warwick, 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 improvements in, or additions to, atmospheric gas and
vapour burners, for gas and other stoves, muffles and furnaces, and cooking and
other general heating appliances, incandescent gas lamps, and other purposes, and
has for its object, a further or increased inclusion of atmospheric air with the
combustible gas or vapour than is obtained with the ordinary air inlet as now
employed.
By my improvements, an intense heat is acquired by the combustion of the gas
or vapour mixed with a large amount of atmospheric air.
Figure 1 of the accompanying drawings represents a gas burner provided with
a mechanical gas and air mixer and forcer constructed according to one form of
my invention.
a is an elongated U-shaped mixing chamber leading to a jet a¹ (or jets) whereat
the mixture of gas and atmospheric air is burned. The entrance a³, to the mixing
chamber may be enlarged or formed bell-mouthed, wherein two (or other number
of) funnel or like shaped cups or open-ended leads or mouths b, separated from
each other by divisional spaces b', are located with their nozzles & being disposed
preferably in an axial line and pointing all in the same direction, all the said cups
being arranged in a nest i.e. one within the other, but are separated from each
other by the annular divisional spaces b. Thus, the nozzle end 63, of one cup is
located partly within the mouth 3 of the cup in advance, whose nozzle, in its
turn, is located partly in the mouth of a cup in further advance thereof, and so
on, whilst the nozzle end of the innermost cup or air collector lies within the
entrance to the mixing chamber and comes in front of a vane, fan or blower c,
located in a suitable recess or chamber a³, and which may be rotated by the
entering gas or fluid, thus sucking in air and gas and creating a further forced
draught and intimately intermingling the atmospheric air and the combustible
gas or vapour. After being delivered from the fan or blower, the gaseous mixture
passes up the passages of the U or other shaped mixing chamber to the burner or
jet at which it is consumed.
The delivery nozzle d¹ of the gas supply pipe d, enters the flared end of the
outermost cup of the series and the gas thence passes successively through the
nozzles of all the cups and into the entrance to the mixing chamber. Atmospheric
air flows up each of the annular spaces separating the cups and in succession inter-

page_text: mingles with the flowing gas, which becomes more and more charged with air thus
collected as it proceeds.
I need not necessarily employ a mechanical mixer or forced draught, as the act
of air passing through one of the conical mouths of the collectors is, in some cases
sufficient to create the necessary suction, current or draught.
Figure 2 represents a burner for gas fires, provided with air collectors according
to my invention but having no fan or mechanical mixer.
a is the burner, a¹ the jets of the same, and as the funnel shaped gas-and-air
entrance having a series of three conical cups, leads or air collectors, b, located
therein, with divisional air spaces 6', between them, whilst d', is the delivery
nozzle of the main gas supply pipe d.
Figure 3 represents, in plan, (partly in section) an atmospheric gas-stove burner,
in which the jets are arranged to proceed from the side, provided with a modified
arrangement of air includers according to my invention."
Figure 4 is a complete plan of Figure 3, showing the air-inlet holes.
In this arrangement, the air collectors or includers b, are covered in, and access
to them is gained by piercings a', formed in the walls of the entrance passage or
mixing chamber as to the burner a, the jets of which are marked a¹. The exit
ends 6, of the cups or funnels 6, are preferably arranged so as to come a little in
advance of the holes at.
The fan or blower may if necessary be driven by a spring, clock work or other
multiplying gear or mechanical means, and agitators or mixers may be placed in
the body of the mixing chamber. Such burners may either be arranged singly or
in series according to the nature of the apparatus with which they are to be used,
and besides the gas or vapour being highly charged with air, the said gas and air
are thoroughly mixed, and the gas is prevented from lighting back to the
inlet jet.
Figure 5 represents a complete longitudinal vertical section of an iron heating
stand provided with spring driven mechanism for actuating the fan or blower.
Figure 6 is a horizontal section of the same, with the multiplying gear, shown
in plan.
And Figure 7 represents a plan of the multiplying gear separately.
The same letters of reference indicate corresponding parts in Figures 5, 6, and 7.
a is the burner or heater of the iron stand, with a rest as, upon which a box-iron
to be heated comes when placed over the said burner, which is supported by a
hollow pillar a³, resting upon a casing a, having included within it a U-shaped
or circuitous mixing chamber a', leading from an entrance chamber a³, provided
with an inlet, and having located within it, a rotatory fan, blower or vane c,
the axis, of which is provided with a worm c', with which a worm or tangent
wheel d, engages. d' is an arbor or axis, having mounted upon it, a pinion d²,
intergearing with aL toothed wheel e.
whose pinion e, is mounted
the axis e, and intergears with a toothed wheel f, having a pinion f
on its axis f, intergearing with a large driving toothed wheel. 9,
mounted on the principal winding-up axis g, fitted with an ordinary ratchet
wheel g, with a pawl g, carried by the said wheel g, wiping over it, and with the
said axis connected with the driving spring i, enclosed within a drum i', whilst
the said main axis g', has a winding end g.
h is the gas supply with its exit end h¹, entering the fan chamber a
on
I do not confine myself to the shape of the cups or collectors, shown in
Figures 1 to 4, which may be cylindrical or varied in any way so long as they are
arranged in series and separated from each other by intervening spaces open to
the air.
The application of my invention to stoves, muffles and furnaces, cooking and
other general heating appliances, incandescent gas lamps and other purposes
differs in no essential respect from its application to the several heating appliances
herein described and illustrated.

page_text: Having now particularly described and ascertained the nature of my sad
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. Providing or fitting the entrances of atmospheric gas and vapour burners,
or their mixing chambers, with open-ended funnel or other shaped concentric
cups or collectors, entering each other, and arranged in successive series and
separated by intervening spaces open to the air, and with the gas-supply pipe or
pipes entering the mouth of the first collector of such series.
Secondly. The improvements in atmospheric air includers or collectors, or air
includers and mixers, substantially as described and set forth.
Thirdly. Providing atmospheric gas and vapour burners with a draught forcing
appliance, in the form of a driven fan, vane, blower or the like, located forward of
the gas and air entrances, substantially as described and set forth.
Fourthly. Providing atmospheric gas and vapour burners with a draught-
forcing appliance, in the form of a fan, vane, blower of the like, located forward
of the gas and air entrances and driven by clock-work or spring actuated
mechanism, such as described and set forth in Figures 5, 6 and 7.
Fifthly. The improvements in, or additions to, atmospheric gas and vapour
burners for various purposes substantially as described and set forth.
Dated this 26th dor of duceust 1897
ERNEST EDWARD LEWIS,
By Henry Skerrett,
24 Temple Row Birmingham, Agent for Applicant.