Improvements in and Connected with Smoke Consuming Arrange- ments for Steam Boiler and other Furnaces and Domestic Fire Places.
Year: 1888

page_text: Date of Application, 4th Jan., 1888
Complete Specification Left, 11th Apr., 1888
Comp ete Specification Accepted, 26th Oct, 1888
PROVISIONAL SPECIFICATION.
Improvements in and Connected with Smoke Consuming Arrange-
ments for Steam Boiler and other Furnaces and Domestic
Fire Places.
STEPHEN BROOKS Commercial Traveller Oak Cottage Leeds Road North
Huddersfield I do hereby declare the nature of this invention to be as follows:-
:―
A second furnace, or fire grate, built in any part of the flue of Steam Boiler,
behind the regular boiler fires and chimney, but preferably under the front end of
boiler in the bottom flue, such furnace to be fed with coke or other combustible
material, by hopper, air is admitted underneath the said fire. The smoke being con-
ducted by the flues through the furnace or fire is thereby consumed as gas, making
the furnace a superheater. For Domestic purposes the coal is fed underneath a second
grate, filled with coke, or other material, fixed higher up the chimney or flue, and the
smoke or gas from raw coal underneath is thereby consumed.
Dated this 27th day of December 1887
STEPHEN BROOKS.

page_text: COMPLETE SPECIFICATION.
Improvements in and Connected with Smoke Consuming Arrange-
ments for Steam Boiler and other Furnaces and Domestic
Fireplaces.
I, STEPHEN BROOKS Commercial Traveller of Leeds Road North Huddersfield
Yorkshire 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 relates firstly to steam-boilers and consists firstly in arrangements of
apparatus by means of which I am enabled to cause to be wholly or in great part.
consumed the smoke given off by the fuel employed to heat such steam-boilers.
According to my invention I place in any suitable part of the flue leading from
the steam-boiler to which my invention is to be applied and preferably at the front
end of the boiler a furnace or grate to which a supply of air is admitted which
furnace or grate I supply with coke or other fuel which in combustion gives off little
or no smoke and through the furnace or grate above mentioned I pass the smoke and
products of combustion from the fire or fires employed to heat the boiler to which my
invention is applied.
In order that my invention may be understood and carried into effect I will now
further describe the same with reference to the accompanying drawings in which Fig. 1
is a front elevation Fig. 2 a longitudinal section taken on the plane indicated by the
line A. A of Fig. 1, Fig. 3 a cross section and Fig. 4 a horizontal section taken on
the line B B of Fig. 1.
In Fig. 4 the boiler is not shown in section.
The same letters of reference are applied to the same parts in all the figures.
a is the boiler to which my invention is applied. The boiler a is provided with
flues in which are grate bars c. c. d is the flue situate beneath the boiler a and
ee are side flues.
Within each of the side flues e e I place a fire grate or furnace C
such fire grate or furnace C being formed of bottom-bars supported by a frame-
work g.
As the apparatus constructed according to my invention is applied to each
side of the boiler a I shall in my description of my invention refer to the apparatus
at one side of the boiler a. The framework g is formed with snugs provided with
sockets which support a grate the upper edge of which grate rests against the
shell a of the boiler a. Supported by the framework g is a bar or rail in which
are formed several holes into each of which is passed the lower end of one of several
rods k. Upon each of the rods are placed several blocks of fire clay or other
suitable material not readily injured by flame or heated gases. The upper blocks / of
fire clay or other suitable material situate next to the wall m of the flue e rest against
such wall m and leave a cavity D between such blocks of fire clay or other suitable
material and the wall m. I place in the front wall m¹ a framework n divided into

page_text: two chambers E F by a plate n. The chamber E is provided with a door n² and
the chamber F is provided with a door 3 furnished with a shutter n capable of at
times closing openings G formed through the door n³. The framework n is secured
to the framework g by means of bolts and cotters o. Through the front wall m I fix
a funnel p provided with a cover p¹ hinged thereto.
The smoke and products of combustion from the fuel upon the grate bars c after
passing along the flue to the back of the boiler a pass into the flue d and travel
along such flued to the front of the boiler a and afterwards one portion of the said
smoke and products of combustion passes to the flue e situate on the right-hand
side of the boiler a and another portion of the said smoke and products of combustion
passes to the flue e situate on the left-hand side of the boiler. The direction in
which the smoke and products of combustion pass from the fuel upon the grate bars c
is indicated by the arrows H. fill or charge each of the grates or furnaces C by
means of the funnels p with fuel preferably coke or any other fuel the combustion
of which produces little or no smoke, and ignite such fuel. The smoke and products
of combustion in passing from the flued to the flue e will pass through the incan-
descent fuel contained in the grate or furnace C and in the passage of such smoke and
products of combustion through the incandescent fuel contained in the grate or
furnace the smoke will be in a great measure if not wholly consumed. In order
to assist the combustion of the fuel in the grate or furnace and also to assist the
combustion of the smoke from the fuel upon the grate bars f, air is admitted through
the openings G such air passing to and through the fuel contained in the grate or
furnace the amount of air allowed to pass through the openings G being regulated
by the shutter so that the fuel contained in the grate or furnace C will burn
freely without a large quantity of fuel being consumed.
The blocks of fire clay or other suitable material become highly heated by the
passage of heated gases and flame and assist the combustion of the smoke in its
passage over the said blocks /.
Fuel may be supplied to the grate or furnace by means of the funnel p such
funnel p being closed by the lid or cover p after fuel has been supplied to the
grate or furnace C. Air is thus prevented from passing through the funnel p to
the flue e. The ashes and dirt from the grate or furnace C may be removed by
means of the doors ², such doors n³, n³ also enabling the fuel in the grate or
furnace C to be stirred, raked or levelled as may be required from time to time.
In cases in which all the products of combustion from the fuel upon the grate bars
of the steam-boiler pass through one flue, only one of the apparatus constructed
according to my invention need be employed. Apparatus constructed according to
my invention may also be applied to other furnaces similar to those of steam-boilers.
A method of applying my invention to fire grates used for domestic purposes is
shown by Figs. 5 and 6 of the accompanying drawings Fig. 5 being a side elevation
partly in section and Fig. 6 a front elevation in which the fire grate is shown in vertical
section taken on the line J J of Fig. 5.
99 are the ordinary front bars and q'q' the ordinary bottom bars of the grate.
At the back of the grate I place a trough or hopper the upper part of which is
closed by a lid or cover hinged at to the trough or hopper
7°.
leading
The lower part of the trough or hopper r is formed with an opening
beneath grate-bars s placed part way down and extending across the fire grate.
The grate-bars s divide the fire grate into two portions K and L. A fire of coke
or other fuel which while burning gives off little or no smoke is made in the upper
portion K of the fire grate and upon the grate bars s.
Coal or other fuel is then supplied to the lower portion L of the fire-grate below
the grate-barss and upon the grate-bars q'.
The coal or other fuel in the lower portion L of the fire grate is then ignited. The
smoke and other products of combustion from the coal in the lower part L of the
fire-grate will in their passage to the chimney pass through the ignited fuel in
the upper part K of the fire grate so that the sinoke will be partially or wholly
consumed.

page_text: When further fuel is required for the fire in the lower portion L of the fire grate
the lid or cover is raised and the fuel required is supplied and afterwards the lid
or cover is closed to prevent the smoke and products of combustion from the
fuel in the lower portion L of the fire-grate from passing through the trough or
hopper r.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the said is to be performed 1 declare that what
I claim is
"F
1. The hereinbefore described apparatus for consuming the smoke produced in the
combustion of the fuel in the fire grate of a steam-boiler which apparatus consists of
a fire grate such as C constructed, arranged and employed substantially as herein-
before described in reference to and indicated in and by Figs. 1, 2, 3 and 4 of the
accompanying drawings.
2. The hereinbefore described apparatus for consuming the smoke produced in the
combustion of the fuel in the fire grate of a steam-boiler which apparatus consists in
a grate or furnace such as C, blocks such as of fire-clay or other suitable material
and a funnel such as pall constructed, arranged and employed for the purposes and
substantially as hereinbefore described in reference to and indicated in and by
Figs. 1, 2, 3 and 4 of the accompanying drawings.
3.The hereinbefore described apparatus for consuming the smoke produced in
the combustion of the fuel in a domestic fire grate which apparatus consists in
grate bars such as and a rough or hopper such as all constructed, arranged
and employed for the purposes and substantially as hereinbefore described in
reference to and indicated in and by Figs. 5 and 6 of the accompanying drawings.
Dated this First day of October 1888.
STEPHEN BROOKS.