Improvements in Regenerative Burners.
Year: 1893

page_text: Date of Application, 27th Dec., 1893-Accepted, 17th Feb., 1894
COMPLETE SPECIFICATION.
[Communicated from abroad by THOMAS GORDON, of 311, W. 121 Street,
Mechanical Engineer, and WILLIAM R. SWIFT, of 322, W. 26. Street,
Machinist, both in the City of New York, United States of America.]
Improvements in Regenerative Burners.
I, HENRY HARRIS LAKE, of the Firm of Haseltine Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 :-
I will describe a regenerative burner, embodying my improvement, and then
point out the novel features in a claim.
In the accompanying drawing,
Figure 1 is a central vertical section of a regenerative lamp and burner, the
latter of which embodies my improvement.
Figure 2 is a central vertical section of a diaphragm of modified form.
Figure 3 is a central vertical section of a regenerative lamp, somewhat modified
in construction.
Figure 4 is a central vertical section of a regenerative lamp and burner,
illustrating a modification.
Figure 5 is a central vertical section of a regenerative lamp and burner of
another modified construction.
Figure 6 is a central vertical section of parts made according to another
modification.
Similar letters of reference designate corresponding parts in all the figures.
Referring first to Figure 1, A designates a gas conduit, here shown as made in
the form of a pipe, provided at its lower end, with a screw coupling a, capable of
engagement with the nipple of a gas fixture.
At the top of the gas conduit A is a central gas chamber a', which may be made
in the form of a cap or hollow plug. Thence extend radially, a number of tubes a³,
serving to supply gas to a gas chamber B.
The gas chamber, B, is of annular form, it being in the present instance, made
of two sheet metal shells &, 62. The inner shell is engaged with the tubes a².
A convenient way of engaging the tubes a with the cap or plug a', is to provide
the parts with screw threads, on their adjacent surfaces. The ends of the tubes,
which support the shell 61 may be united with said shell by brazing. The lower
edge of the shell 6' is turned inwardly in the form of a flange.. That portion of
the shell 6¹ forming the upper portion of the gas chamber B is turned outwardly
to form a shoulder 6. Above this shoulder, the shell engages with the shell 6,
the means of engagement here represented being screw-threads. At the lower
extremity, the shell 2 is bent inwardly to lap under the flange of the shell 61.
The lower portion of the shell is provided with perforations 6, whence the gas
issues in jets and is burned.
It may
C designates a shell through which passes air necessary for combustion.
be made of sheet metal, and as here shown, it has a lower cylindric portion c¹, a
contracted conical portion c³, and a smaller cylindrical portion ³. The upper
extremity of the latter is turned inwardly to form a flange e and this may bear
against the inwardly turned lower edge of the shell comprised in the gas
chamber.
I have shown the lower cylindric portion c' of the shell C, as provided with an
integral outwardly extending flange c forming a gallery or support for a combustion

page_text: chamber, which, in the present example, of our improvement, is made in the form
of a glass globe D, provided with a cylindrical base portion d that loosely surrounds
the lower cylindric portion c¹ of the shell C, and surmounted by a cylindric
portion d. Spring fingers extending upwardly from the gallery-flange e impinge
against the outer side of the cylindric base portion d of the combustion chamber D,
thereby holding the same in place.
A convenient means of supporting the shell C and consequently the combustion
.chamber, consists in arms as extending outwardly from the coupling a to a ring a
upon which the flange or gallery c³ rests.
Preferably I employ in the lower part of the shell C a perforated or reticulated
diaphragm E so as to prevent air ascending in gusts.
8
Part of the air escapes from the perforations in the shell C so as to supply air
to the lower mantle or surface of the flame. Another portion of the air flows
upwardly past the tubes a³ to support the combustion on the upper mantle, or
surface of the flame. This portion of the air passes through the air chamber G,
and thence to a deflector H whereby air is directed against the flame.
The chamber G as here shown is formed partly by the cylindric upper portion
of the shell forming part of the gas chamber B and partly by a cap g
surmounting said shell. The upper portion of the shell is shown as vertically
slotted, and hence as being provided with a number of upright arms between
the slots . The cap g may be made of sheet metal and integral with the
deflector H.
When the chamber G is constructed in the manner described, it will be advan-
tageous to introduce a diaphragm I, having numerous small perforations below the
slots or openings g. As here shown the diaphragm I is provided with a downwardly
extending rim, fitting inside of the shell and resting upon an ontwardly turned
"portion of the latter.
I may use a reflector J, consisting of an annular shell around the deflector H and
resting upon an outwardly turned flange or bead on the lower extremity of the
latter.
In Figure 2 I have shown that the diaphragm I, instead of having a number of
perforations may be provided with a single central opening. Each form has
advantages for a particular kind of gas.
In Figure 3 the construction is substantially the same as that described in
connection with Figure 1, excepting as to some features which I will now describe.
The central gas chamber a' at the upper extremity of the gas conduit A has a
cap a'. This may be made with a downwardly extending rim, capable of screwing
into the upper portion of the body. Instead of having large openings for the
'escape of air, from the air-heating chamber, G, the form of our invention illus-
trated by Figure 3, has a number of perforations, it thus being enabled to regulate
of itself the escape of the air, instead of requiring the diaphragm I for that
purpose.
In Figure 4, I have shown substantially the same construction, excepting that
we have illustrated a modification providing for the heating of the gas. The gas
conduit A is extended upwardly through the gas chamber a', and an elongated
cap as is fitted to such chamber. As shown here, the cap a is fitted to the outside
of the body of the central gas chamber a', and engaged there by means of screw-
threads. It extends considerably above the body of the central gas, chamber.
The extension of the conduit A is shown as being made of a separate tube screw-
threaded into the conduit A and also into the body of the central gas chamber.
This extension rises almost to the top of the cap a*. This extension causes the gas
to rise through the central gas chamber and then to descend through the annular
space between the extension of the gas conduit A and the side wall of the cap us
until it escapes through the tubes.
:
In Figure 5, the burner chamber is shown as having at its base two annular
portions. In the outer are the gas outlets 6. With the inner, connect branch
pipes a leading from the gas supply pipe A-the said branch pipes diverging

page_text: upwardly. In this example of my improvement, a rod R extends upwardly from
the gas supply pipe A through the top of the air heating chamber, and above the
latter has applied to it a nut R¹.
In Figure 6 I have shown that the diaphragm I may be omitted, if the side wall
of the air heating chamber is provided with suitable perforations.
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 correspondents, I declare that what I claim is :-
1. In a regenerative burner, the combination of a nipple, for connecting with a
gas fixture, a gas supply pipe extending upwardly therefrom, an annular gas burner
chamber, concentric with the gas supply pipe, and provided with a circular row of
gas outlets at its base, so that the supply of gas will be above the flame, a centrally
arranged air heating chamber, located above the annular gas burner chamber, and
having openings for the escape of air, a deflector supported by the air heating
chamber, and extending downwardly so as to surround the annular gas burner
chamber, a globe support below the burner and concentric with and sustained by
the gas supply pipe, a globe supported by the globe support, and a shell surrounding
the gas supply pipe and extending from the globe support to the base portion of the
annular burner chamber, inwards of its row of gas outlets so as to form with the
inner wall of the gas burner chamber part of a conduit to the air heating chamber,
said shell having perforations for supplying air to the base of the burner, and also
to the lower portion of the globe, substantially as specified.
2. In a regenerative burner, the combination of a nipple for connecting with a
gas fixture, a gas supply pipe extending upwardly therefrom, an annular gas burner
chamber, concentric with the gas supply pipe, and provided with a circular row of
gas outlets at its base, so that the supply of gas will be above the flame, a centrally
arranged air heating chamber, located above the annular gas burner chamber, and
having openings for the escape of air, a diaphragm arranged within said air heating
chamber and having an opening or openings, a deflector supported by the air
heating chamber, and extending downwardly so as to surround the annular gas
burner chamber, a globe support below the burner and concentric with and sustained
by the gas supply pipe, a globe supported by the globe support, and a shell sur-
rounding the gas supply pipe and extending from the globe support to the base
portion of the annular burner chamber, inwards of its row of gas outlets so as to
form with the inner wall of the gas burner chamber, part of a conduit to the air
heating chamber, said shell having perforations for supplying air to the base of the
burner, and also to the lower portion of the globe, substantially as specified.
3. In a regenerative burner, the combination of a nipple for connecting with the
gas fixture, a gas supply pipe extending upwardly therefrom, a gas heater com-
municating with said supply pipe, an annular gas burner chamber, concentric with
the gas supply pipe, provided with a circular row of gas outlets at its base, so that
the supply of gas will be above the flame, a centrally arranged air heating chamber,
located above the annular gas burner chamber, and having openings for the escape
of air, a deflector supported by the air heating chamber, and extending down-
wardly so as to surround the annular gas burner chamber, a globe support below
the burner and concentric with and sustained by the gas supply pipe, a globe
supported by the globe support, and a shell surrounding the gas supply pipe and
extending from the globe support to the base portion of the annular burner chamber,
inwards of its row of gas outlets so as to form with the inner wall of the gas
burner chamber part of a conduit to the air heating chamber, said shell having
perforations for supplying air to the base of the burner, and also to the lower
portion of the globe, substantially as specified.
4. In a regenerative burner, the combination of a nipple for connecting with the
gas fixture, a gas supply pipe extending upwardly therefrom, a returning or circu-
lating pipe enclosing the supply pipe, an annular gas burner chamber, concentric
with the gas supply pipe, provided with a circular row of gas outlets at its base, so

page_text: that the supply of gas will be above the flame, a centrally arranged air heating
chamber, located above the annular gas burner chamber, and having openings for
the escape of air, a deflector supported by the air heating chamber, and extending
downwardly so as to surround the annular gas burner chamber, a globe support
below the burner and concentric with and sustained by the gas supply pipe, a globe
supported by the globe support, and a shell surrounding the gas supply pipe and
extending from the globe support to the base portion of the annular burner chamber,
inwards of its row of gas outlets so as to form with the inner wall of the gas
burner chamber part of a conduit to the air heating chamber, said shell having
perforations for supplying air to the base of the burner, and also to the lower
portion of the globe, substantially as specified.
5. In a regenerative burner, the combination of an annular burner having gas
inlets and gas outlets in its base or lower portion and means for supplying gas to
said gas inlets, substantially as specified.
Dated this 27th day of December 1893
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.