A NEW OR IMPROVED SELF- ACTING SMOKE-CONSUMING FURNACE, APPLICABLE TO ALL KINDS OF FURNACES FOR GENERATING STEAM OR OTHERWISE
Year: 1876

page_text: LETTERS PATENT to Augustus Westwood, Metal Broker, of West Bromwich,
in the County of Stafford, for the Invention of "A NEW OR IMPROVED SELF-
ACTING SMOKE-CONSUMING FURNACE, APPLICABLE TO ALL KINDS OF FURNACES
FOR GENERATING STEAM OR OTHERWISE."
PROVISIONAL SPECIFICATION left by the said Augustus Westwood at the
Office of the Commissioners of Patents on the 21st August 1876.
AUGUSTUS WESTWOOD, Metal Broker, of West Bromwich, in the County of
Stafford. "A NEW OR IMPROVED SELF-ACTING SMOKE-CONSUMING FURNACE,
APPLICABLE TO ALL KINDS OF FURNACES FOR GENERATING STEAM OR OTHERWISE."
The object of my Invention is to obtain perfect combustion of the coal used in
furnaces, and consequently a consumption of the smoke evolved from the said
burning coal. This I effect by introducing one or more air ways terminating
through perforations at the crown of the bridge or bridges at the rear of the furnace
fire, or otherwise. The air way or ways may be formed of iron or brickwork; if the
former I place them where they will become heated by the action of the fire, but
not sufficiently close to fuse or burn them. Into this air way or ways I introduce
a jet or jets of steam, which become super-heated, and thereby freeing its gases to
commingle with the oxygen and nitrogen of the excess of rarified air thereby driven
through the air way or ways to ignite the carbonaceous particles of combustion in
the smoke before passing away to the flue; thus continuously and perfectly burning
the combustibles used, so that no smoke remains to pass to the flue or chimney.
0
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Augustus Westwood in the Great Seal Patent Office on the 21st
February 1877.
AUGUSTUS WESTWOOD, Metal Broker, of West Bromwich, in the County of
Stafford. "A NEW OR IMPROVED SELF-ACTING SMOKE-CONSUMING FURNACE, APPLI-
CABLE TO ALL KINDS OF FURNACES FOR GENERATING STEAM OR OTHERWISE."
Price Gd 1

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 is a front view of a marine boiler with the smoke box removed, and Fig. 2
is an irregular section of Figure 1, taken through the dotted line a, a, with the
smoke box marked B partly broken away to show the tubular flue ways as indicated
by the arrows; C, C, C, represent air ways which may lie along the fire-brick
divisions of the furnace as here shown, or built in the brick work and connected to
or with the hollow bridge D, D, D, the crown of which may be made of cast iron or
with fire-bricks suitably perforated.
In the section Figure 2 I have represented the crown of the bridge as of cast iron,
which may be more or less perforated or diagonally slotted, so that the whole
volume of the bridge (from side to side of the furnace) may be intercepted by the
escape (through the said perforations) of a strong super-heated current of atmo-
spheric air driven through the air ways D, D, by auxiliarated force caused by jets of
super-heated steam, which is brought under control by a stop-cock as at e, Figure 1,
connected with the steam pipe f. By this means a high condition of heated blast of
oxygen escapes from the furnace bridge to ignite and consume all combustible
particles or smoke escaping over the said furnace bridge, so that the smoke being
literally consumed combustion is made perfect, or the whole bridge may be made of
cast iron if so preferred.
Fig. 3 is a front view of a double flue way "Cornish boiler," and Fig. 4 an
irregular section taken through the curved dotted line g, g, drawn merely for the
purpose of showing the application of my air ways H, H, with the steam jet
branching off into double jets at the bottom; also the perforated bridge marked J,
and Figs. 5 and 6 represent an ordinary egg-end boiler with steam chest at top.
The trumpet mouthed air ways for receiving jets of steam marked L, L, terminato
with the hollow bridge as before expressed, and receives the steam from the
branches m, m, in connection with the steam pipe and stop-cock n
Figs. 7 and 8 is an irregular plan and vertical section of a furnace for puddling
iron or other like purposes, my object being simply to show the convenient appli-
cation of my super-heated air and steam blast to such or other kind of furnaces;
and in the plan, Figure 7, I have shown diagonal slots for the heated air to come
through, herein-before referred to.
I have not thought it necessary to further elaborate the Drawings with other
descriptions of boilers, notwithstanding my improvements are particularly applicable
to locomotive, portable, agricultural, and traction engines, as thorough combustion
and prevention of smoke is effected, as well as the prevention or escape of uncon-
sumed sparks of fire, which. are highly objectionable amongst farm produce.
Having thus described and illustrated my Invention, and the manner in which
the same may be carried into effect, I will observe that although I have shown my
bell-mouthed air ways as composed of iron and forming part of the circular air way
tubes, nevertheless the same may be made angular for building into and with the

page_text: masonry or fire-brick lining of the furnace to which such air ways may be applied.
The trumpet mouthes being formed with the same or separate, and applied at the
ingress or outer ends of the said air ways, or the air ways may be formed in the
brickwork in the same way as heretofore adopted in the construction of many
furnaces with air ways connected with hollow bridges with perforated crowns, and
in connection with such brickwork air ways I apply trumpet monthes for receiving
the steam injections, as simply the admission of air to the perforated bridges of
furnaces is not new, as the same has been in use for many years, but what I claim
as of my Invention is the rendering of such supply of air to the rear of furnace fires
in more excess and higher temperature than heretofore by the continuous application
of jets of superheated steam, as herein described and set forth.
In witness whereof, I, the said Augustus Westwood, have hereunto set my
hand and seal, this Seventeenth day of February, in the year of our Lord
One thousand eight hundred and seventy-seven.
Witness,
GEORGE F. A. GRIFFIN,
Clerk to James S. Cockings,
17, Ann Street,
Birmingham.
AUGUSTUS WESTWOOD. (LS.)