Improvements in the Method of and Apparatus for the Effectual Consumption of Smoke from Steam Boilers and other Furnaces.
Year: 1897

page_text: Date of Application, 23rd Mar, 1897
Complete Specification Left, 22nd Dec., 1897-Accepted, 29th Jan., 1898
Date of Application, 4010 Mal., 1037
Complete Specification Left, 22nd Dec., 1897-Accepted, 29th Jan., 1898
Improvements in the Method of and Apparatus for the Effectual
Consumption of Smoke from Steam Boilers and other Furnaces.
I, JAMES PEARSON, of Hopewell Terrace, Horsforth, near Leeds, in the County
of York, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements in the method of and apparatus
for the more effectual consumption of smoke from steam boilers and other furnaces
by a simple and effective arrangement applied to the back portion of the furnace.
I accomplish my object by forming an opening in the bridge below the back
dead plate and providing said opening with a door or damper. Above the said
opening and in any convenient position I secure a suitable plate or deflector at
such an angle that the air admitted through the before mentioned opening under
the bridge is directed straight into the body of the smoke, whereby the latter is
ignited and more effectually consumed, thereby increasing the temperature in
the flues, and a corresponding economy in fuel.
The before mentioned door or damper is provided with a rod which passes to
the front of the boiler, whereby the position of the said door may be adjusted,
thus regulating the amount of air passing through the said opening.
Dated this 22nd day of March 1897.
Improvements in the Method of and Apparatus for the effectual
Consumption of Smoke from Steam Boilers and other Furnaces.
I, JAMES PEARSON, of Hopewell Terrace, Horsforth, near Leeds, in the County
of York, Engincer, 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 and by the following statement: -
This invention relates to certain improvements in the method of and apparatus
for the more effectual consumption of smoke from steam boilers and other furnaces,
by combining therewith a simple and effective arrangement applied to the back
portion of the furnace.
In describing my invention in detail, reference is made to the accompanying
sheet of drawings, in which Fig. 1 represents a sectional elevation of a steam
boiler the furnace of which is fitted with my improved apparatus, and
Fig. 2 is a cross sectional elevation.

page_text: In carrying out my object, I form an opening A, in the brickwork or the like
of the bridge B, below the back end dead plate C, and to this opening is fitted a
door D, hinged in any convenient manner, the door being suitably connected to a
rod E, by which it is opened or closed.
Above the said opening is fixed a deflector plate F, the face F1, of which is
inclined at a suitable angle, so that on opening the door D, by the rod E, and
admitting air through the opening A, the door 1), and deflector plate F, direct the
current, so that it combines with the smoke immediately it passes over the top of
bridge B, thereby admitting atmospheric air behind the said bridge to such an
extent and in such a manner that, the smoke is ignited, therefore more effectually
consumed, thereby increasing the temperature of the gases of the flues, and
effecting a corresponding economy in fuel.
The admission of air through the opening A, is regulated from the front by the
operation of the rod E, by which the door D, is opened or closed and the position
adjusted to suit the requirements of the furnace.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I claim
as my invention is:
The combining with the furnace bridge below the level of the fire bars of an
opening A, provided with an adjustable door D, having a deflector plate F, fixed
above same, all arranged substantially in the manner and for the purpose as
hereinbefore set forth.
Dated this 21st day of December 1907