IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES
Year: 1844

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BEDINGTON, junior, of Birmingham, in the County of Warwick, Manu-
facturer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Tenth day of July, in the eighth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me the said William
Bedington, Her especial licence, full power, sole privilege and authority,
that I, the said William Bedington, my exors, adññiors, and assigns, or such
others as I, the said William Bedington, my exors, adññors, or assigns,
should at any time agree with, and no others, from time to time and at
all times during the term of years therein expressed, should and lawfully
might make, use, exercise, and vend, within England, Wales, and the Town
of Berwick upon Tweed, my Invention of "IMPROVEMENTS IN THE CONSTRUCTION
OF FURNACES;" in which said Letters Patent is contained a proviso that I, the
said William Bedington, shall cause a particular description of the nature of
my said Invention, and the manner in which the same is to be performed, to
be inrolled in Her said Majesty's High Court of Chancery within six calendar
months next and immediately after the date of the said in part recited Letters
Patent, as in and by the same, reference being thereunto had, will more fully
and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Bedington, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described and
ascertained in and by the following statement thereof, reference being had
to the Drawing hereunto annexed, and to the figures and letters marked
thereon (that is to say):
-
The Invention consists of a mode of constructing furnaces so that the same
may burn the fuel more advantageously, and the evolving of much dark dense
smoke from the chimneys be prevented. And in order that, the Invention
may be most fully understood and readily carried into effect, I will proceed to
describe the Drawing hereunto annexed where a steam boiler furnace is shewn
arranged according to my Invention.
DESCRIPTION OF THE DRAWING.
Figure 1 shews a section of a-steam-boiler furnace arranged according to
my Invention: Figure 2 shews a section of another arrangement of furnace,
differing simply in the placing of the hanging bridge. a is the furnace, which
is of an ordinary construction, and may be varied in size and also in arrange-
ment without departing from the Invention. bis the ash-pit, at the back of
which, and behind the bridge c, there is a chamber d, into which a supply of
atmospheric air is kept up in order that the said air rising upwards may mix
with the products passing from the furnace and thus inflame them, there being
suitable means for regulating the supply of air into the chamber d, which may
be accomplished by a valve, as shown at s, or a slide, or other convenient
means, so that the person attending the fire may prevent too much air passing
into the chamber d, and yet that the supply shall be sufficient for causing the
products coming from the furnace to be inflamed; but having once regulated
the size of the opening so that the furnace works well, I have not found it
necessary afterwards to alter the opening for supplying of air. I would here
remark, that I am aware that various means have before been resorted to for
supplying atmospheric air at the back of the bridges of furnaces so as to
cause the products passing beyond the bridges to be inflamed, and I therefore
do not claim the introduction of atmospheric air at the backs of bridges, nor the
making a chamber d behind the bridge of a furnace, when separately con-
sidered, but e is a hanging bridge by which the products in their passages
away are caused to be deflected, and this aids the mixing of the products
passing from the furnace with the atmospheric air rising out of the chamber d;
and though with respect to the use of hanging bridges such as is shown at e,
in Figures 1 and 2, I make no claim thereto in their separate form, as similar

page_text: hanging bridges have before been used, yet combined with the use of a chamber
such as d, from which a supply of atmospheric air may be supplied to the
passing products in order to their being inflamed, I consider these hanging
bridges new. In Figure 1 the hanging bridge is placed over the chamber d,
whilst that in Figure 2 is shewn just beyond the chamber d, and I have intro-
duced these two arrangements in order to show that the position of the hanging
bridge may be varied. And it will be evident that although I have only shewn
a steam boiler furnace, other furnaces for other purposes will be readily made
by a workman from the description herein given, he arranging chambers d at
the back of the bridges c, and combining therewith the use of hanging bridges,
as herein explained.
Having thus described the nature of my Invention, and the best means
I am acquainted with for performing the same, I would have it understood
that what I claim is the so constructing or arranging furnaces for steam
boilers and other purposes, as to combine the use of chambers d, and hanging
bridges e beyond the bridges c, as herein described.
In witness whereof, I, the said William Bedington, have hereunto set
my hand and seal, this Seventh day of January, in the year of our
Lord One thousand eight hundred and forty-five