AN IMPROVED BURNER OR APPARATUS FOR THE COMBUSTION OF AIR AND INFLAMMABLE GAB
Year: 1856

page_text: LETTERS PATENT to William Franklin Shaw, of the State of Massachusetts,
of the United States of America, for the Invention of "AN IMPROVED
BURNER OR APPARATUS FOR THE COMBUSTION OF AIR AND INFLAMMABLE GAB."
Sealed the 3rd October 1856, and dated the 1st August 1856.
COMPLETE SPECIFICATION filed by the said William Franklin Shaw at
the Office of the Commissioners of Patents, with his Petition and Decla-
ration, on the 1st August 1856, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME.
BE IT KNOWN, that I, WILLIAM FRANKLIN SHAW, of the State of
Massachusetts, of the United States of America, have made an Invention
of "AN IMPROVED BURNER OR APPARATUS FOR THE COMBUSTION OF AIR AND
INFLAMMABLE GAS," and I do hereby declare the following description, and.
the Drawings accompanying the same, to be a full and Complete Specification,
in which the nature of my said Invention, and the manner in which it is to be
performed, are particularly described and ascertained.
Figure 1 of such Drawings is a side view of my improved apparatus ;
Figure 2, a top view of it; and Figure 3, a central and longitudinal section
of it.
In these Drawings, A is a tubular vessel, constructed, if necessary, with a

page_text: flaring top or upper part, as seen at a, a, the said top having a cover or
diaphragm B extending across it, and made of wires woven together, so that
there may be between them numerous small holes or meshes; said diaphragm
or disseminator B instead of being so made may be a sheet of metal, pierced
with numerous small holes arranged close together, extending around and
above the cover cap or disseminator. B is a wire gauze or perforated tube C,
such tube being constructed in essentially the same manner as the part B, so
as to have many meshes or perforations. through its sides. Besides the same,
the said tube C, if necessary, may be provided with other openings or ports b, b,
they being situated at or near its top, and for the purpose of allowing the
escape of the spent or waste volatile products of combustion when the top of
the tube C is covered either by a plate, boiler, or other article to be heated
placed thereon. The bottom of the tube A may be entirely open, or it may
be partially closed, and provided with a series of openings d, d, for the passage
of air into the burner. A tube D should open into the lower end or other suit-
able part of the tubular conduit A, such tube D serving to convey inflammable
gas to said conduit A. If necessary said tube may be provided with a stop cock,
as shown at E in Figures 1 and 3. When the said stop cock is open, and such
gas suffered to flow into the conduit A, it will rise upward towards and pass
through the woven wire work cap B, and if inflamed thereon and above the
same, it will induce currents of air to rush into the lower part of the tube A
and upwards through said tube, and thence against and through the cap B.
The air and gas will thus be mixed together and burned by the flame which
is above the cap C, the addition of air to the gas serving to furnish it with
oxygen, whereby the amount of heat obtained during combustion will be greatly
increased.
By means of the perforated tube C extending around the disseminator or cap
B in manner as set forth, minute streams of air will be caused to rush through
the openings of said tube and toward the flame, and so as not only to return
into it aldehyde and formic acid, or such gaseous or other offensive matters
as may be discharged laterally from it, but to promote combustion of the gas
which may escape from the disseminator. The addition of the tube C to the
air and gas burner or remainder of the apparatus is a great and important
improvement, and constitutes my Invention.
In order to improve the action of the tube C, it may be surrounded by an
air deflector, which should extend downward from or near the upper part of
the said tube, as shown by dotted lines F, F, in Figure 8. With a deflector
or concentrator of this kind, air will be directed to great advantage towards
the external surface of the tube C."
:

page_text: My Invention has particular reference to an air and gas burner or appa-
ratus, substantially as herein specified, wherein air and gas are introduced and
burned, as described. There result from the combustion of air and gas
together, in manner as described, disagreeable fumes, gases, or vapors, which
by the operation of the burner are thrown off laterally, and so as to escape
into the surrounding air, rendering the same more or less impure, so that
when meats or other articles are cooked by being directly exposed to the spent
products of the combustion of air and gas, they are likely to become so im-
pregnated with them as to be disagreeable to the taste or smell.
By my Invention the waste volatile products thrown off laterally from the
flaine are met by the influent aerial currents of the perforated tube, and by
such are retained or maintained in the flame, so as to be consumed and deprived
of their injurious properties, as set forth.
From the above it will be seen that my Invention has no reference to a
perforated tube, chimney, or wire gauze case applied to an ordinary gas burner,
or to the flame of a lamp or candle, as the difficulty to be remedied is not
incident to such under ordinary circumstances.
I claim as my Invention the combination of the perfeted or woven wire
tube C with the air and gas burner, substantially as described.
I also claim the combination of the deflector or air concentrator with the
perforated tube when the latter is applied to an air and gas burner, as
specified.
In testimony whereof, I have hereunto set my signature and affixed my
seal, this Seventeenth day of July, A.D. 1856.
WILLIAM FRANKLIN SHAW. (L.S.)