IMPROVEMENTS IN GAS BURNERS
Year: 1871

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN GAS BURNERS."-A communication from abroad by
Antoine Ernest Dupas, of New Orleans, Louisiana, United States.
of America.
Sealed the 18th April 1871, and dated the 23rd February 1871.
PROVISIONAL SPECIFICATION left by the said George Haseltine at
the Office of the Commissioners of Patents, with his Petition, on
the 23rd February 1871.
I, GEORGE HASELTINE, of the "International Patent Office," South-
ampton Buildings, London, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN Gas Burners," a communication, to be as
follows:-
This Invention is intended chiefly for use in connection with the gas
produced by carburetting atmospheric air through the agency of the
carburetting apparatus for which I have made applications for Letters
Patent the 21st and 22nd of February A.D. 1871, as agent for the
said Antoine Ernest Dupas and Arthur Barbarin, but. I by no means

page_text: '
estrict myself to such especial use if circumstances shall make it
expedient to employ this Invention for burning any other illuminating
gas whatsoever.
The said Invention consists in a peculiar arrangement of two concentric
rings of gas jets, and presents several novel characteristics of con-
struction, whereby I claim a uniform and perfect diffusion of the gas
produced by the absorption of carbon from hydrocarbon throughout any
part of my burner, and co-relatively a light that is of uniform height in
every part of it, and in consequence of the multiplication of jets of very
great illuminating power. The construction of my burner furthermore
is of such a character that I secure a perfect control over the gas issuing
from the inner concentric ring of jets, which, for reasons that I will
briefly note hereafter, is requisite to the fulfilment of the condition of
uniformity in the height of the flame produced by the combustion of the
gas as between the outer and inner rings of jets.
The said burner has two concentric rings of metal, through which
vertically small perforations are made to serve as conduits for the
passage of the gas up to the points of combustion at the tops of said
rings. The said rings may be of solid metal, or may be composed of
two walls, each with an open space between them, which is closed at
the top, except so far as the perforations are concerned. At the bottoms
of the said rings respectively are gas chambers, the outer one being
larger than the inner one, and each having a greater diameter than the
ring to which it is attached. The gas chambers are soldered to the
rings and to a bifurcated short section of pipe which at the extremity of
its vertical part is provided with a female screw inside for the purpose
of connecting it with the service pipe coming from the carburetter or
gas main, as the case may-be. The gas is supplied to the outer ring by
means of two small passages drilled one in one arm and the other in
the other arm through the bifurcated part of the section of pipe.
They have no connection with the passages for the supply of gas to the
inner ring, and enter the gas chamber in such manner that the gas
flowing through them strikes against the sides of said chambers which
are opposite their points of entry therein almost at right angles.
The apertures should be large enough to permit a little more gas to
flow through them than can escape through the jets, in order to pack
the gas in the chamber, and thus prevent the evil effects which would
follow from an escape of gas more rapid than the supply of the same.

page_text: The inner ring of jets is supplied with gas through an opening which
divides into two branch passages in order to enter the gas chamber at
two points. As in the case of the passages, in order to deflect the gas
on both sides of its points of entry, and thus to diffuse it equally
throughout the chamber, the passages enter the said chamber in such
manner as to cause the gas flowing through them, to strike against
the interior surfaco of said chamber at such an angle as to produce that
effect. The flame from the inner ring ascends to a very much greater
height than that from the outer ring, unless some provision be made to
regulate the flow of gas to said inner ring. The device employed by me
for this purpose is a key, which, provided with a screw thread, penetrates
the opening and reduces the size of the same to any desired extent, and
thus enables me to control and regulate the flow of gas.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Haseltine in the Great Seal Patent Office
on the 16th June 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," Southampton Buildings,
London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of February, in the
year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fourth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said George Haseltine, Her.
special licence, that I, the said George Haseltine, my executors, ad-
ministrators, and assigns, or such others as I, the said George Haseltine,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during.
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for " IM-
PROVEMENTS IN GAS BURNERS," a communication to me from abroad by
Antoine Ernest Dupas, of New Orleans, Louisiana, United States of
America, upon the condition (amongst others) that I, the said George,
Haseltine, my executors or administrators, by an instrument in writing

page_text: under my, or their, or one of their hands and scals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the saune to lic filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said George Haseltine, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawing forming a part of this Specification :-
This Invention is intended chiefly for use in connection with the
gas produced by carburetting atmospheric air through the agency of
the carburetting apparatus for which I have obtained Letters Patent,
bearing date the 21st and 22nd of February, A.D. 1871, Nos. 452
and 472, as agent for the said Antoine Ernest Dupas and Arthur
Barbarin, but I by no means restrict myself to such especial uso if
circumstances shall make it expedient to employ this Invention for
burning any other illuminating gas whatsoever.
The said Invention consists in a peculiar arrangement of two con-
centric rings of gas jets, and presents several novel characteristics of
construction whereby I obtain a uniform and perfect diffusion of the
gas produced by the absorption of carbon from hydrocarbon throughout
any part of my burner, and co-relatively a light that is of uniform
height in every part of it, and in consequence of the multiplication
of jets of very great illuminating power. The construction of my
burner furthermore is of such a character that I secure a perfect control
over the gas issuing from the inner concentric ring of jets, which for
reasons that I will briefly note hereafter is requisite to the fulfilment
of the condition of uniformity in the height of the flame produced by
the combustion of the gas between the outer and inner rings of jets.
DESCRIPTION OF THE DRAWING.
Figuro 1 is a perspective view, and Figure 2 is a vertical section
of my improved burner. Like letters indicate the same parts in both

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issues in the ordinary manner in as many jets as there are perforations.
The rings A, B, may be of solid metal, or they may be composed of
two walls, cach, as shown in Figure 2, with an open space between them
which is closed at the top except so far as the perforations are concerned,
as shown in both Figures, but most clearly in Figure 1. Of course, if the
rings be solid the perforations must be made by drilling, since they are
too small to be made in casting the said rings. At the bottoms of the
said rings A, B, respectively are gas chambers C, D, C being larger than
D, and cach having a greater diameter than the ring to which it is
attached, as shown in the Drawing. The gas chambers are soldered
to the rings and to a bifurcated short section of pipe E, which at the
extremity of its vertical part F is provided with a female screw inside
of it for the purpose of connecting it with the service pipe coming from
the carburetter or gas main, as the case may be. The gas is supplied
to the outer ring A by means of two small passages G, G¹, drilled one in
one arm and the other in the other arm through the bifurcated part
of the section of pipe E, as shown in Figure 2. They have no connec
tion with the passages for the supply of gas to the inner ring B, and
enter the gas chamber A in such manner that the gas flowing through
them strikes against the sides of said chambers which are opposite
their points of entry therein almost at right angles; this causes a
deflection of the gas in all directions, and hence, an equal diffusion of
the same on both sides of the point at which it enters, and consequently
an equal pressure everywhere in said chamber, at the same time avoiding
the necessity of having the gas enter the same at more than two points.
The apertures G, G', should be large enough to permit a little more gas
to flow through them than can escape through the jets a in order
to pack the gas in the chamber C, and thus prevent the evil effects
which would follow from a more rapid escape of gas than the supply
of the same. The inner ring B of jets is supplied with gas through an
opening H, which divides into two branch passages H', H", in order to
enter the gas chamber D at two points, as shown. As in the case of the
passages G, G', in order to deflect the gas on both sides of its points of
entry, and thus to diffuse it equally throughout the chamber D, the
passages H, H", enter said chamber in such manner as to cause the
gas flowing through them to strike against the interior surface of said
chamber at such an angle as to produce that effect. The combustion
of gas issuing from the inner ring, in consequence of its being better
ventilated, and for other reasons which it is not necessary to state, is

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'
far more rapid than that of the gas coming from the outer ring, and
hence the flame from the inner ring ascends to a very much greater
height than that from the outer ring unless some provision be made
to regulate the flow of gas to said inner ring. The device employed
by me for this purpose is a key I, which, provided with a screw thread,
penetrates the opening I and reduces the size of the same to any
desired extent, and thus enables me to control and regulate the flow
of gas through said opening or passage, and consequently to maintain
the height of the flame from the inner ring of jets on the same level or
plano as that of the outer ring.
Having thus fully described the said Invention, as communicated
to me by my foreign correspondent, I claim,-
First. The combination of the duplicate concentric rings of jets A, B,
with the gas chambers C, D, when the latter are connected with a
bifurcated section of a pipe E, and respectively supplied with gas
through passages G, G', and H', H", in the manner herein described for
the purpose set forth.
.
Second. The combination of the regulating key I with the inner
ring of jets B when the said key is employed in connection with a
passage H, which above the key is divided into branch passages II', H",
substantially as described for the purpose set forth.
In witness whereof, I, the said George Haseltine, have here-
unto set my hand and scal, this Sixteenth day of June, in
the year of our Lord One thousand eight hundred and seventy-
one
Witness,
W. J. LOWE.
GEORGE HASELTINE. (L.S.)