Improvements relating to Furnaces where Forced Draught is used."
Year: 1897

page_text: Date of Application, 4th Feb., 1897
Complete Specification Left, 4th Nov., 1897-Accepted, 11th Dec., 1897
66
PROVISIONAL SPECIFICATION.
Improvements relating to Furnaces where Forced Draught is
used."
We, THOMAS WILTON, Manager, and GEORGE WILTON, Chemist, both of the Gas
Light & Coke Company's Tar and Liquor Works, Beckton, in the County of Essex, do
hereby declare the nature of our invention to be as follows:-
Our invention relates to furnaces for boilers and the like-wherein forced draught is
used, such for example as are referred to in our prior Patents No. 6645 A.D. 1891 and
9309 A.D. 1895, and has for its object to provide means for silencing and deadening
the noise and vibration caused by the blast; by the use of our invention also an
efficient guard is provided for protecting the blast nozzles from ashes, injury and so
forth, and also the air for combustion may be heated. According to our inventiou
we form upon the ashpit closing plate a projecting box enclosing the blast nozzles and
having preferably an inclined face upon which a well fitting covering plate is fitted.
This may be hinged or bolted on but we prefer to form a flange along the top of the
box and an angle piece on the front plate so that it may be slidden into position with
great ense. In the bottom of the box is formed an opening of somewhat greater area
than that of the furnace blast pipe or pipes for the supply to the nozzles of air for
combustion. The air supply pipe is extended from this opening preferably through
the stoke plates into the blow off pit but for the purposes of heating said air the pipe
may be extended through the fines or otherwise exposed to the Lot furnace gases
By the above arrangement not only is the noise of the blast effectually silenced but
as will be seen the air for combustion may be brought to a high temperature thereby
securing increased efficiency.
1000
"Improvements relating to Furnaces where Forced Draught is
used."
We, THOMAS WILTON, Manager, and GEORGE WILTON, Chemist, both of the Gas
Light & Coke Company's Tar and Liquor Works, Beckton, in the County of Essex,
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 aud by the following
statement:—
Our invention relates to furnaces for boilers and the like wherein forced draught is
used, such for example as are referred to in our prior Patents No. 6645 A.D. 1891

page_text: and No. 9309 A.D. 1895, and has for its object to provide means for siloncing and
deadening the noise and vibration caused by the blast; by the use of our invention
also an efficient guard is provided for protecting the blast nozzles from ashes, injury
and so forth, and also the air for combustion may be heated. We will now fully
describe our invention, referring in so doing to the annexed drawing in which Fig. 1
is a front end view of a boiler, to the furnace of which our invention is applied, the
lid being removed to show the interior, and Fig. 2 is a longitudinal section through
the centre of furnace of same. Fig. 3 is an enlarged section of our invention.
P is the blast pipe leading to the distributing pipe P¹ placed in the furnace
aud N N are the steam blast nozzles all as described in our prior patents above
referred to. According to our invention we formn upon the ashpit closing plate A a
projecting box enclosing the said blast nozzles N N and having preferably an
inclined face F upon which a well fitting covering plate C is fitted. This cover plate
inay be hinged or bolted on to the box B but we prefer to form a flange b along the
top of the box B and an angle piece c on the upper edge of front plate C so that it
may be slidden into position with great ease. In the bottom of the box B is formed
au opening 0 of somewhat greater area than that of the furnace blast pipe or
pipes P for the supply to the nozzles N N of air for combustion. Steam is led to the
nozzles by pipes SS and in the drawing a superheating pipe S is shown in the furnace,
the steam pipe passing to the nozzles through one side of the box B. The air supply
pipe Omay be extended from this opening O either simply through the stoke
plates G into the blow off pit D as illustrated in, hard lines, but for the purposes of
heating said air the pipe O¹ may be extended through the flues as shown dotted or
otherwise so exposed to the hot furnace gases as to efficiently heat the incoming air.
By the above described arrangement not only is the noise of the blast effectually
silenced but the air required for combustion may be brought to a high temperature,
thereby securing increased efficiency.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :--
In furnaces where forced draught is used, the combination with the blast and
distributing pipes and nozzles of the herein described means for silencing and
deadening the noise and vibration caused by the blast, consisting of a box enclosing
the nozzles and provided with a well fitting covering plate such as C and an air inlet
pipe subjected or not to the heat of the furnace gases, the whole being arranged
substantially in the manner above set forth in reference to the drawing.
Dated the 4th. day of November. 1897.