IMPROVE-" MENTS IN OR CONNECTED WITH STEAM BOILER OR OTHER FURNACES
Year: 1878

page_text: LETTERS PATENT to Edward George Peyton, of Jesus College, Cambridge, in
the County of Cambridge, Undergraduate, for the Invention of "IMPROVE-"
MENTS IN OR CONNECTED WITH STEAM BOILER OR OTHER FURNACES."
Sealed the 15th April 1879, and dated the 18th October 1878.
PROVISIONAL SPECIFICATION left by the said Edward George Peyton at
the Office of the Commissioners of Patents on the 18th October 1878.
EDWARD GEORGE PEYTON, of Jesus College, Cambridge, in the County of
Cambridge, Undergraduate. "IMPROVEMENTS IN OR CONNECTED WITH
BOILER OR OTHER FURNACES."
STEAM
The objects of this Invention, which relates to improvements in or connected
with steam boiler or other furnaces, are to obtain a more perfect combustion of the
smoke and other products of combustion, and to economize fuel.
The improvements consist in constructing or arranging in connection with the
bridge, and immediately in the rear of or behind it, a chamber which I term the
oxygen chamber," and which is in connection with the ash-pit through an opening
in the plate below the bridge, and which opening may be provided with a grating.
This chamber runs up parallel with and immediately behind the bridge, and is
bolted to a plate which keeps any dirt from falling into the chamber, and which
also allows of its being removed for cleaning, and at its top the chamber is made
open or with a series of openings or apertures which are situated so as to cause the
air, which in its passage through the ash-pit and "oxygen chamber" is deprived of
its humidity and gets considerably heated, to mingle with the smoke as and imme-
diately after the latter passes the bridge from the furnace chamber into the flues,
and so to cause perfect combustion thereof within the latter.
I also fit the space above the bridge with a sliding or other plate in such a
manner as to reduce the space for the passage of the products of combustion, and
to cause the latter to pass as near to the bridge as is possible, so that the heated air
supplied from the "oxygen chamber" shall more effectively commingle therewith
and effect the desired purpose, whereby the consumption of fuel will be considerably
lessened.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edward George Peyton in the Great Seal Patent Office on the
18th April 1879.
EDWARD GEORGE PEYTON, of Jesus College, Cambridge, in the County of
Cambridge, Undergraduate. "IMPROVEMENTS IN OR CONNECTED WITH STEAM
BOILER OR OTHER FURNACES."
The objects of this Invention, which relates to improvements in or connected
with steam boiler or other furnaces, are (o obtain a more perfect combustion of the
smoke and other products of combustion, and consequently to economize fuel.
The Invention is illustrated on the accompanying two Sheets of Drawings in
Figures 1 to 7, which will be herein-after severally referred to.
The improvements consist in. constructing or arranging, in connection with the
brick or other bridge 1 and immediately in the rear of or behind it, a cast-iron
plate 5, to which is secured, as herein-after described, a chamber 2 which I term
the "oxygen chamber," and which is in connection with the ash-pit 3, as shown in
the transverse section, Figure 2, through an opening 4 in the plate 5 below the
bridge, and which opening may be provided with a grating or with a damper 6
operated from the front by a rod 7.
The chamber 2 runs up parallel with and immediately behind the bridge, and is
made in upper and lower parts, each secured (as shown in Figures 1 and 3, which
are respectively a side and rear elevation) by bolts 8 to the plate 5, so as to be
capable of being readily removed therefrom for cleaning or repairs if at any time
necessary. At its top the chamber 2 is made open, as at 9, Figures 2 and 3, or
with a series of openings or apertures, so as to cause the air, which in its passage
through the ash-pit and "oxygen chamber" is deprived of its humidity and gets
considerably heated, to mingle with the smoke as and immediately after the latter
passes the bridge from the furnace chamber 10 into the flues (situated at or beyond
11, Figs. 1, 2, 4, and 5), and so to cause perfect combustion thereof within the
latter.
The chamber 2 is covered by a removable cap plate 12 which prevents any flue
dust or dirt from falling into the chamber, and deflects the rising current of air
within the chamber out of the same in such a direction as to cause an intimate
admixture with the products of combustion as they pass over from the furnace
chamber.
This action may be further accelerated by the use of one or more auxiliary
deflectors 13 (shown detached in Figures 7), which may be set and supported (by
brackets or otherwise) in any suitable position, as shown in the modification repre-
sented in Figures 4 and 5, so as still further to deflect and intermingle the admixed
current of smoke and heated air, and ensure the complete combustion of the
former, and also to deflect downwardly any sparks or other dust passing over the
bridge to the bottom of the flue.
The chamber 2 is internally contracted or formed with a narrowed part or
throat 14 in the manner shown in Figure 2, which aids in causing a more rapid
current of air up within the chamber.
15 represents rearwardly projecting lugs, which are of advantage in properly
setting the plate 5, the use of brickwork in the setting being only auxiliary in this
arrangement and not being used as the main support as hitherto.
16 represents a plug (withdrawable into the ash-pit, as shown in Figure 4)
closing an aperture 17 in the plate 5, through which any flue dust falling behind
the chamber 2 can be easily cleared away.
18 represents the furnace bars resting upon the support 19.
Figure 5 represents a modification in which a spreader or deflector 13 is used of
a hollow or box-like form, and bored at the top, botton, or elsewhere for the

page_text: emission of air for mingling with the smoke as it passes over from the furnace, the
air being admitted from the ash-pit through apertures, as dotted at 20, Figure 6,
and connecting pipes 21.
Figure 6 represents a further modification in which a tube 22 is carried round
the furnace and provided with another tube 23, both tubes being bored at intervals,
as at 24, to emit the heated air admitted from the ash-pit at about the points 25.
The space above the bridge may in some cases be fitted with a sliding or other
plate (not shown on the accompanying Drawings) in such a manner as to reduce
the space for the passage of the products of combustion, and to cause the latter to
pass as near to the bridge as possible, so that the heated air supplied from the
oxygen chamber" shall more effectively commingle therewith and effect the
desired purpose, whereby the consumption of fuel will be considerably lessened.
"
Having now described the nature and objects of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that what I claim as the Invention secured to
me by the herein-before in part recited Letters Patent is,-
The novel and peculiar construction and arrangement in connection with the
bridge of steam boiler or other furnaces, that is, immediately in the rear of or
behind it and parallel therewith, of a chamber in direct connection with the ash-pit
and formed with an upper opening or openings protected from the access of flue
dust, but in such a position as to cause heated air admitted through it from the
ash-pit to mingle with the smoke as and immediately after the latter passes the
bridge from the furnace chamber to the flues, and so to cause perfect combustion
thereof within the latter, substantially as above described, and as illustrated on the
accompanying two Sheets of Drawings.
In witness whereof, I, the said Edward George Peyton, have hereunto set my
hand and scal, this Eleventh day of April, in the year of our Lord One
thousand eight hundred and seventy-nine.
EDWARD G. PEYTON. (L.S.)