Year: 1884

page_text: In order that my said invention may be most fully understood and reauny
carried into effect, I will proceed to describe the Drawings hereunto annexed, that
is to say:-
Figures 1, and 2, are side and part end elevations respectively of a puddling
furnace constructed according to my present Invention.
Figures 3, and 4, are vertical and horizontal sections respectively taken on the
lines A. B., Figure 2, and C. D., Figure 1.
Figure 5, is a vertical section of a modified form of puddling furnace constructed
according to my present Invention.
In carrying my present Invention into practice, I provide the furnaces with the
hopper a, into which green coal is placed. The hopper a, is preferably fitted with
the cover b, for closing it.-From the lower part of the hopper a, the inclined
passage c, leads downwards to the grate or chamber d, wherein the solid parts of
the fuel are burned.-Between the hopper a, and the said grate or chamber d, and
at the upper part of the inclined passage c, the chamber e, is formed for the
reception of the smoke or gases which may be distilled out of the green coal as it
descends down the inclined passage c.
The grate or chamber d, in which the solid part of the fuel is burned, is provided
with the fire bars f, at the bottom, whilst its sides are formed with the
perforations g. The space h, enclosed by the plate n, surrounds this chamber e, so
that air or steam or both air and steam may be forced or drawn through the
openings g, in the sides of the chamber, and up through or between the fire-bars f,
in order to burn the solid fuel therein, and also to prevent the formation of
clinkers. At Figures 1, and 4, there is shewn a steam jet air injector o, which
constitutes a very convenient apparatus for forcing air into the space h.-—The
perforations g, in the sides of the said grate or chamber d, preferably extend as
much as possible to the whole height thereof as represented upon the annexed
drawings.
In order to burn the smoke and gases which escape from the green fuel, the
upper part of the furnace above the inclined passage c, and the aforesaid Grate or
chamber d, is constructed with the air space i, from which the perforations j, open
to the interior of the furnace. The air space i, is connected with a passage or flue
which extends part way down the side of the furnace and to which, a passage or
passages, or the pipe k, or pipes, passing through the brick-work, is or are
connected. Into this passage or passages, pipe k, or pipes, air or steam or both air
and steam are forced or drawn by means of a steam-jet air injector p, fitted at its
outer end and as shewn in plan at Figure 4, or by an equivalent air injecting
apparatus, so that a continuous flow thereof is caused to issue from the aforesaid
perforations j, and to meet the smoke and gases escaping from the fuel in the
inclined passage c, and in the grate or chamber d, and to burn them within the
furnace.
The inclined passage c, down which the fuel passes into the chamber d, is
provided with a sufficient number of openings 1, (Figure 1, and shewn dotted in
Figure 4,) for the purpose of allowing a picker to be introduced, from time to time,
.in order to stir the fuel, and a door m, or doors is or are provided at one or both
sides of the grate or fuel chamber d, for gaining. access, when necessary, to the
interior thereof.
Under a modification of these improvements, the upper part of the furnace, that
is to say, the part containing the perforations j, through which the highly heated
air or steam, or both air and steam, pass to the interior of the furnace for the
purpose of burning the smoke and gases, may be curved backwards, as represented
at n, (Figure 5.) so that the jets of highly heated air or steam or both air and
steam, escape into the furnace radially, that is to say at an angle, whereby they
can be caused to converge upon any desired portion of the furnace.
It is to be understood that, in place of heating the air by passing it through a
flue or flues or pipe or pipes, in the solid walls of the furnace as herein before

page_text: I, THOMAS LEONARD ELLIS, of Coatbridge, in the County of Lanark, North
Britain, do hereby declare the nature of my said invention for "IMPROVEMENTS
IN REVERBERATORY FURNACES" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
This Invention, which relates to Improvements in puddling and re-heating
furnaces, the said improvements being also applicable to other kinds of rever-
beratory furnaces, has for its object to prevent the emission of smoke from such
furnaces and to reduce the quantity of coal burned therein.
The improvements consist in providing the said furnaces with a hopper into
which green coal is placed.-This hopper is preferably provided with a cover for
closing it. From the lower part of the hopper an inclined passage leads downwards
to the grate or chamber wherein the solid parts of the fuel are burned.-Between
the hopper and this said grate or chamber, and at the upper part of the inclined
passage a chamber is formed for the reception of the smoke or gases which may be
distilled out of the green coal as it descends down the inclined passage.
>
The grate or chamber, in which the solid part of the fuel is burned, has ordinary
fire bars at the bottom, whilst its sides are perforated and an enclosed space
surrounds this chamber so that air or steam or both air and steam is, or may be,
forced or drawn through the openings in the sides of the chamber and through or
between the fire bars, in order to burn the solid fuel therein and also to prevent
the formation of clinkers.-The perforations in the sides of this said grate or
chamber preferably extend as much as possible to the whole height of the said
grate or chamber,
In order to burn the smoke and gases which escape from the green fuel, the
upper part of the furnace, above the inclined passage and the aforesaid grate or
chamber, is constructed with an air space froin which perforations open.-This
space is connected with a passage or flue which extends part way down the side of
the furnace to which a passage or passages or a pipe or pipes, passing through the
brick-work, connects, and into this passage or passages, pipe or pipes, air or steam
or both air and steam are forced or drawn, so that a continuous flow thereof is
caused to issue from the aforesaid perforations and to meet the smoke and gases
escaping from the fuel and to burn them within the furnace.
The inclined passage, down which the fuel passes into the fuel chamber, is
provided with a sufficient number of openings for the purpose of allowing a picker
to be introduced from time to time in order to stir the fuel, and a door is provided
at one or both sides of the grate or fuel chamber for gaining access, when necessary,
to the interior thereof.
Under a modification of these improvements the upper part of the furnace, that
is to say, the part containing the perforations through which the highly heated air
or steam, or both, pass to the interior of the furnace for the purpose of burning the
smoke and gases, may be curved backwards, so that the jets of highly heated air or
steam, or both, escape into the furnace radially whereby they can be caused to
converge upon any desired portion of the furnace.
It is to be understood that in place of heating the air by passing it through a
flue or flues, pipe or pipes, in the solid walls of the furnace as hereinbefore
described, the heated air may be supplied from a separate source, such for example,
as au ordinary hot blast stove.

page_text: The inclined passage down which the fuel passes into the fuel chamber is provided
with a sufficient number of openings for the purpose of allowing a picker to be.
introduced from time to time in order to stir the fuel, and a door is provided at
one or both sides of the grate or fuel chamber for gaining access, when necessary,
to the interior thereof.
Under a modification of these improvements the upper part of the furnace, that is
to say the part containing the perforations through which the highly heated air or
steam or both pass to the interior of the furnace for the purpose of burning the
smoke and gases, may be curved backwards so that the jets of highly heated air or
steam or both escape into the furnace radially whereby they can be caused to
converge upon any desired portion of the furnace.
It is to be understood that in place of heating the air by passing it through a
flue or flues, pipe or pipes, in the solid walls of the furnace as hereinbefore described,
the heated air may be supplied from a separate source, such for example as an
ordinary hot blast stove.

page_text: I, THOMAS LEONARD ELLIS, of North British Iron Works Coatbridge in the
County of Lanark, North Britain do hereby declare the nature of the said invention
for "IMPROVEMENTS IN REVERBERATORY FURNACES " to be as follows:-
This Invention, which relates to Improvements in puddling and reheating
furnaces, the said Improvements being also applicable to other kinds of reverberatory
furnaces, has for its object to prevent the emission of smoke from such furnaces and
to reduce the quantity of coal burned therein.
The Improvements consist in providing the said furnaces with a hopper into
which green coal is placed. This hopper is preferably provided with a cover for
closing it. From the lower part of the hopper an inclined passage leads downwards
to the grate or chamber wherein the solid parts of the fuel are burned. Between
the hopper and this said grate or chamber and at the upper part of the inclined
passage a chamber is formed for the reception of the smoke or gases which may be
distilled out of the green coal as it descends down the inclined passage.
The grate or chamber in which the solid part of the fuel is burned has ordinary
fire bars at the bottom, whilst its sides are perforated and an enclosed space
surrounds this chamber so that air or steam or both air and steam is or may be
forced or drawn through the openings in the side of the chamber and through or
between the fire bars in order to burn the solid fuel therein and also to prevent the
formation of clinkers. The perforations in the sides of this said grate or chamber
preferably extend as much as possible to the whole height of the said grate or
chamber.
In order to burn the smoke and gases which escape from the green fuel, the upper
part of the furnace above the inclined passage and the aforesaid grate or chamber is
constructed with an air space from which perforations open downwards. This space
is connected with a passage or flue which extends part way down the side of the
furnace to which a passage or passages or a pipe or pipes passing through the
brick-work connects, and into this passage or passages pipe or pipes air or steam or
both air and steam are forced or drawn so that a continuous flow thereof is caused
to issue from the aforesaid perforations and to meet the smoke and gases escaping
from the fuel and to burn them within the furnace.

page_text: described with reference to the annexed Drawings, the heated air may be supplied
from a separate source, such for example as an ordinary hot blast stove..
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is :-
:-
The improved reverberatory furnace, in which are combined the hopper a,
opening into the inclined passage c, the chamber e, perforations g, the enclosed
space h, containing perforated grate or chamber d, and the air spaces i, and n,
and into which spaces h, i, and n, air is forced or drawn, arranged as shewn at
Figures 3, and 5, with their perforations j, opening into the said furnace, all
substantially as and for the purposes hereinbefore set forth with reference to the
annexed Drawings.
Dated this twenty coound day of October 1001.
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.