Improvements in Atmospheric Gas-burners.
Year: 1894

page_text: Date of Application, 6th Nov., 1894
Complete Specification Left, 1st Aug., 1895-Accepted, 7th Sept., 1895
[Communicated from abroad by RICHARD NICKERSON OAKMAN the younger,
of Greenfield, in the State of Massachusetts, United States of America,
Gentleman.]
Improvements in Atmospheric Gas-burners.
1, HENRY EDWARD NEWTON of The Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of London, Patent Agent, do hereby declare the
nature of this invention to be as follows:-
This invention relates to an improved burner-device for illuminating gas, natural
gas, or combustible gas, which device is particularly adapted to be placed in the
fire-boxes of stoves, hot-air furnaces, steam heating furnaces, and boilers.
The object of this invention is to provide a burner which is simple in con-
struction, and entirely safe and effective in operation; to provide for simultaneously
controlling the supply of gas and the primary supply of air to the mixing tube
and chamber, and also controlling the secondary supply of air to the burner nozzles
by means of a suitably connected gas valve and a sleeve and damper for the air
supply; and to provide for better mixing gas and air, for causing complete com-
bustion at the burner nozzle, by admitting the air centrally through an opening
surrounded by a ring of inflowing gas.
The burner is preferably made of circular form, and is constructed with a dished
or flanged top plate, having a circle of tubular openings. The space between the
upwardly-turned flange and around the tubular openings or nozzles, is filled in with
asbestos-mortar or other non-conducting material, for protecting the metallic tubes
or nozzles from injury by heat.
A dished or hollow bottom plate is secured to the underside of the top plate, and
is provided with a central opening, at which place there is connected the gas and
air mixing and supply pipe. The hollow plate is constructed with a circle of
tapering tubular openings or nozzles, open at their upper and lower ends, and
projecting into the tubular nozzle of the top plate.
The gas and air mixing and supply pipe is provided, at its outer end, with an
enlargement, having a circle of elongated openings or ports for the admission of air
to be mixed with the gas, with a sleeve or collar, arranged to slide and turn upon
the pipe, so as to control the air inlet openings. An annular dise valve, or damper,
is loosely supported in contact with the underside of bottom plate, to control the
admission of air to the nozzles.
The gas supply pipe is provided with a plug valve, the stem of which is provided
with a lever handle, and an arm at right angles to the handle, and the outer end
of said arm is pivotally connected to a rod, which is connected to the sleeve or
collar, and to the damper.
It will thus be seen that the gas supply valve, and the air inlet ports, are
simultaneously controlled by one lever, and by a single movement thereof, whereby
complete combustion of the gas is always insured; and, at the same time, lighting
back is prevented. The secondary air supply to the burner nozzles, is also
controlled by the same lever handle and connecting rod, so that perfect control is
had of the gas supply, the primary air supply for mixing with the gas, and the
secondary air supply for causing complete combustion at the burner nozzles,

page_text: thereby ensuring entire safety, economy in the use of gas, and entirely satisfactory
results in the combustion of gas, and in the heating effects thereof.
Dated this 6th day of November 1894.
NEWTON & SON,
Agents for the Applicant.
I HENRY EDWARD NEWTON of The Office for Patents, 6 Bream's Buildings,
Chancery Lane, in the County of London, Patent Agent, 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 an improved burner-device for illuminating gas, natural
gas, or combustible gas, which device is particularly adapted to be placed in the
fire-boxes of stoves, hot-air furnaces, steam heating furnaces, and boilers.
The object of this invention is to provide a burner which is simple in con-
struction, and entirely safe and effective in operation; and one of the special
objects is to provide for simultaneously controlling the supply of gas and the
primary supply of air to the mixing tube and chamber, and also controlling the
secondary supply of air to the burner nozzles by means of a suitably connected gas
valve, and a sleeve and damper for the air supply.
Provision is also made for better mixing the gas and air for causing complete
combustion at the burner nozzle, by admitting the air centrally through an opening
surrounded by a ring of inflowing gas.
The devices and details of construction of the improved burner are illustrated in
the accompanying drawings, in which-
Fig. 1 represents a vertical section of the base of the furnace and of the gas
burner;
Fig. 2 represents a top plan view of the burner device.
Fig. 3 represents a bottom plan view thereof.
The burner is preferably used in a furnace, A, which contains the fire-box, and
having a downward extension, B, of the iron shell, to form an air chamber and
hold the burner, C. The shell of the chamber for outgoing products of combustion
connects with furnace A, as indicated at A. The iron shell of furnace A is
provided, near its bottom, with an inwardly projecting annular flange, or with
lugs, a, which support the lining a', of fire-clay or other non-conducting material.
A lighting opening &, having a door ', is formed in the wall of furnace A, for
giving convenient access to the burner.
The burner C is preferably made of circular form, and of sufficiently large
diameter to completely fill the horizontal area of the combustion chamber B', and
projects at its edges beyond the interior surface of the lining, as shown in Fig. 1,
and fits closely against the lining and the annular flange a, so that no air can pass
into the combustion furnace arouml its peripheral edges. The burner is constructed
with a dished or upwardly-flanged top plate c, having inwardly turned edges, as
shown, and also having a circle of tubular openings c', which are preferably tapered
from below upward, as shown in Fig. 1. The space between the upwardly turned
flange and around the tubular openings or nozzle c', is filled in with asbestos-
mortar, or other non-conducting material c², for protecting the metallic tubes or
nozzles from injury by heat.
A dished or hollow bottom plate D is secured by bolts to the underside of the
top plate c, and is provided with a central opening d, at which place there is
connected the gas and air mixing and supply pipe O. The hollow plate D forms,
with the top plate c, the gas and air chamber D', and it is constructed with a

page_text: circle of tapering tubular openings or nozzles a¹, open at their upper and lower
ends, and projecting into the tubular nozzle c¹ of the top plate, as shown in Figs. 1
and 2. The annular nozzles c¹ serve for the admission of air to support combustion.
of the gas in the combustion chamber B' of the furnace.
The gas and air mixing and supply pipe O is provided at its inner up-turned end
with an annular flange o, which is secured by screw bolts or rivets to the bottom
plate D, and said pipe is provided at its outer end with an enlargement o¹, having
a circle of elongated openings or ports o² for the admission of air to be inixed with
the gas.
A sleeve or collar o' is arranged to slide and turn upon the pipe O, so as to
control the air inlet openings o². An annular disc valve or damper R (Figs. 1 and 3),
having a circle of suitable openings r, is loosely supported in contact with the
under side of bottom plate D by means of the headed screws r¹, and is also guided
by the pins 2, so that said damper is free to rotate in contact with plate D, and
thereby control the admission of air to the nozzle d¹. The openings in the
damper R, are so spaced as to register with the air nozzles, and are of such a distance
apart as to permit the nozzles to be completely closed by the damper.
The gas supply pipe S is provided with a plug valve s, and with a screw-threaded
extension or nozzle s¹, which projects into the rear end of the pipe O, with its
inner end adjacent to the air ports o². The stem of plug valve s is provided with
a lever handle t, and an arm that right angles to the handle t, or at any desired
angle thereto; and the outer end of said arm is pivotally connected by means of
the thumbscrew u to the outer end of rod T, which is connected to the sleeve or
collar o by means of a screw or pin u', and to the damper R by means of the screw
or pin u². The connections at the pins u¹ and u³ are loose, so as to provide perfect
freedom of movement to the collar O₁ and the damper R.
It will thus be seen
that the gas supply valves and the air inlet ports o² are simultaneously controlled
by one lever, and by a single movement thereof, whereby complete combustion of
the gas
is always ensured; and at the same time lighting back is prevented. The
secondary air supply by the nozzles to the burner nozzles c¹ is also controlled by
the same lever handle t and connecting rod T, so that perfect control is had of the
gas supply, the primary air supply for mixing with the gas, and the secondary air
supply for causing complete combustion at the burner nozzles, thereby ensuring
entire safety, economy in the use of the gas, and also entirely satisfactory results
in the combustion of the gas, and in the heating effects thereof.
It has been found quite advantageous, in practice, to admit air centrally through
an opening or nozzle surrounded by an annular supply of inflowing gas, as in the
improved burner.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. In a gas burner, the combination with a chamber having a gas supply pipe
and a series of annular burner nozzles, of a series of air supply nozzles open at
the upper and lower ends, and projecting centrally through said gas burner nozzles,
substantially as described.
2. In a gas burner, the combination with a gas and air mixing chamber, having
means for supplying it with a regulated mixture of gas and air, and also having
upwardly projecting annular burner nozzles, of a series of air supply nozzles
passing through said mixing chamber and into the burner nozzles thereof, and also
having means for controlling the supply of air thereof, substantially as described.
3. A gas burner for a stove or furnace constructed with a dished top plate,
having inwardly projecting tubular openings or nozzles, and a bottom dished
plate, constructed to form a gas chamber between it and the top plate, and also
with a series of nozzles projecting up into the nozzles of the upper plate, and
also having means for supplying gas and air to the burner nozzle C, substantially
as described.

page_text: 4. In combination with the gas burner, having a chamber for mixed gas and air,
a gas and air mixing and supply pipe, having air inlet ports, and provided with a
controlling sleeve or collar, a gas supply pipe entering said mixing pipe, and
provided with a controlling valve, and a lever and rod connection from the plug of
the gas valve to said sleeve or collar, whereby the supply of gas and air to the
mixing pipe may be simultaneously controlled, substantially as described.
5. In a gas burner, a gas and air mixing and supply pipe provided with air inlet
ports in combination with a gas inlet pipe, having an inwardly projecting nozzle,
sliding sleeve or collar on said mixing pipe, adapted to control the inlet ports, a
plug valve in the gas supply pipe, having lever handle and an arm, and a connecting
rod pivotally connected to said arm and to said sleeve, whereby the supply of gas
and air may be simultaneously regulated in proper proportions, substantially as
described.
6. A gas burner having air supply nozzles, in combination with a damper,
provided with openings, and adapted to control the admission of air to said nozzles,
a gas and air mixing and supply pipe having air inlet ports, a gas supply pipe
having a nozzle entering said mixing pipe, a sliding sleeve or collar on said mixing
pipe, a valve in said gas pipe, and suitable connections between said damper, collar,
and valve, whereby all of them may be simultaneously moved, for controlling the
supply of air and gas to the burner nozzles, substantially as described.
Dated this 1st day of August 1895.
NEWTON & SON,
Agents for the Applicant.