A New or Improved Means or Method of Consuming Smoke, and for Heating the Feed Water of Steam-boilers.
Year: 1890

page_text: Date of Application, 9th Oct., 1890
Complete Specification Left, 8th July, 1891-Accepted, 8th Aug., 1891
PROVISIONAL SPECIFICATION.
A New or Improved Means or Method of Consuming Smoke, and for
Heating the Feed Water of Steam-boilers.
I, JOHN ILLINGWORTH, of Whitelee, Batley, in the County of York. Flock
Manufacturer, do hereby declare the nature of this invention to be as follows:-
--
My invention consists in a new or improved means or method of consuming
sinoke, and for heating feed water previous to entering steam boilers; for these
purposes I utilize the smoke and spent gases arising from the furnace of the steam
boiler.
According to my invention, I fix in any convenient place between the steam
boiler and the chimney, a longitudinal wrought iron or other metal double tubular
flue, made with an annular waterway. In the bottom of the tubular flue, or in any
other convenient position, I place a firegrate fed with coke or other suitable form
of fuel. The smoke and gases arising from the boiler furnace, after rendering the
services usually performed, is conducted through or over the additional fire, where
such smoke and gases are ignited and consumed, the heat of which impinges against
the inner side of the metal flue, and heats the water lodging in the annular space.
The heated gases thus utilized are conducted over the top part of the annular
water space, where the heat is re-used by passing over and around the tubular flue,
whereby utilize all the heat possible to obtain from the unburnt smoke and gases
arising from the furnace, and heating the water in the tubular flue preparatory to
its entering the boiler.
Instead of the smoke and gases passing first through the metal flue and then over
the annular water way, the journey of the smoke may be reversed, and in some
cases instead of the metal flue being an open space, it may be filled with pipes after
the manner of a locomotive boiler.
By the employment of the tubular flue with the annular space, and by the
assistance of the coke fire, the feed water can be heated to a very high temperature
before reaching the boiler, consequently a considerable saving of fuel is effected, in
addition to which the smoke is consumed before entering the chimney, and this is
effected without mechanical stokers, and without novel and peculiar grate bars now
commonly used for the purpose of burning smoke.
Dated this 8th day of October 1890.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
A New or Improved Means or Method of Consuming Smoke, and for
Heating the Feed Water of Steam-boilers.
I, JOHN ILLINGWORTH, of Ridings Mill, Whitelee, Batley, in the County of
York, Flock Manufacturer, 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 :-
My invention consists in a new or improved means or method of consuming
smoke, and for heating feed water previous to entering steam boilers; for these
purposes I utilize the smoke and spent gases arising from the furnace of the steam
boiler.
According to my invention, I fix in any convenient place between the steam
boiler and the chimney, a longitudinal wrought iron or other metal double tubular

page_text: flue, having an annular waterway. In the bottom of the tubular flue, or underneath
it or in any other convenient position, I place a firegrate fed with coke or other
suitable form of fuel. The smoke and gases arising from the boiler furnace, after
rendering the services usually performed, are conducted through or over the
additional fire, where such smoke and gases are ignited and consumed, the heat of
which impinges against the metal flue, and heats the water lodging in the annular
space.
Such being the nature and object of my said invention, I will now proceed to
describe the same with reference to the drawings hereto attached, wherein
Fig. 1 is longitudinal section of apparatus constructed according to my invention,
and Fig. 2 is cross section of the same. A and B represent two tubular flues
placed one within the other, leaving a space C for water, which is admitted through
pipe D and passes out at pipe E, or rice versa. The tubular flues A and B are
connected together at one end by rivets passing through flanges as shewn at Cr, but
the opposite ends of the flues are scaled up by the insertion of a flange or rim H,
corked and made secure by rivets I as shewn in detail Fig. 3. The two flues A
and B are supported upon suitable brickwork J and also surrounded by brickwork K.
The smoke and gases arising from the furnace of an ordinary steam boiler are
conducted over the fire L for the purpose of igniting the unspent gases, which on
their way to the chimney or other outlet envelop and impinge against the outside of
flue B, and enter within the inner flue A, whereby the water within the annular
space C becomes heated and in a fit condition for pumping into the steam boiler.
If necessary, atmospheric air may be admitted to the fire L to assist in the
combustion of smoke. Instead of the inner metal flue A being an open space, it may be
filled with pipes after the manner of a locomotive boiler. In order to remove the
incrustation or scaly matter which gathers on the surface of the flues, the ring H
must be removed and the inner flue A withdrawn, so as to permit the parts to be
cleaned, after which the flues may be replaced.
By the employment of the tubular flues and the annular water space C, together
with the coke fire 1, the feed water can be heated to a very high temperature
before reaching the boiler, consequently a considerable saving of fuel is effected, in
addition to which the smoke is consumed before entering the chimney, and this is
effected without mechanical stokers, and without the novel and peculiar grate bars
now commonly used for the purpose of burning smoke.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I would have it understood
that I do not limit myself to the particular application or combination of my
invention with a steam boiler, as it may be used in combination with economizers
or other form of water heaters, but I declare that what I do claim is :-
Firstly. The improved method or means of intercepting smoke and gases arising
from boiler furnaces and utilizing same for heating feed water, substantially as
shewn and described.
Secondly. The improved method or means of consuming smoke and for heating
feed water, substantially as shewn and described.
Dated this 7th day of July 1891.
TASKER & CROSSLEY,
Halifax and Huddersfield, Agents for Applicant.