Improvements in Puddling and like Furnaces.
Year: 1891

page_text: Date of Application, 21st Oct., 1891
Complete Specification Left, 7th July, 1892-4ccepted, 13th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Puddling and like Furnaces.
We, GEORGE HENRY TAYLOR, of 69 Chancery Lane, in the County of London,
Engineer, and WILHELM OTTO AXEL LOWE, of 10 Dale Street, Liverpool, in the
County of Lancaster, Merchant, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in puddling and like furnaces whereby the
gases generated in the producer, which according to our invention forms an integral
part of the furnace, may be employed therewith and thus the consequent abatement
of smoke be obtained.
For the purposes of our invention we construct the furnace with a longitudinal
passage or flue, or longitudinal passages or flues, through which the gases generated
in the producer, which is situated at one end of the structure, are by preference
conducted to the opposite end thereof and are there admitted, through suitable
ports or openings, into the metal chamber wherein the gases are ignited and
burned; combustion taking place at a high temperature. The products of con-
bustion are conveyed away by a chimney or stack leading from the metal
chamber.
Suitable passages and openings are provided for the admission of the requisite
quantity of heated air for mixing with the producer gases, prior to their entry into
the metal chamber for ignition over the hearth, and these passages and openings
may be regulated by any convenient means so as to govern the amount of air
admitted, according to the operation being carried on.
Dampers or valves may be employed for cutting off the admission of gases to the
metal chamber when desired.
By our invention the producer gases, by reason of their contact with the hot sides
of the furnace during their journey along the longitudinal passages or flues become
thoroughly fixed and the air becomes highly heated before entering the metal
chamber; thus a more perfect combustion is ensured, a considerable saving in fuel
effected, and smoke prevented.
Dated this 21st day of October 1891
ERNEST DE PASS,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Puddling and like Furnaces.
We, GEORGE HENRY TAYLOR formerly of 69 Chancery Lane but now of
Cadby Hall Works, West Kensington, both in the County of London, Engineer,
and WILHELM OTTO AXEL LOWE, of 10 Dale Street, Liverpool, in the County
of Lancaster, Merchant, 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, reference being had to the accompanying drawings
and to the letters and figures marked thereon, that is to say :-
This invention relates to improvements in puddling and like furnaces, whereby the
gases generated in the producer which, according to our invention, forms an integral
part of the furnace, may be employed therewith, and thus the consequent abatement
of smoke obtained.

page_text: For the purposes of our invention we construct the furnace with a longitudinal
passage or flue, or longitudinal passages or flues, through which the gases generated
in the producer, which is situated at one end of the structure, are conducted to the
opposite end thereof, and are there admitted, through suitable ports or openings,
into the metal chamber wherein the gases are ignited and burned, combustion taking
place at a high temperature. The products of combustion, are conveyed away by a
chimney or stack leading from the metal chamber.
Suitable passages and openings are provided for the admission of the requisite
quantity of heated air for mixing with the producer gases prior to their entry into
the metal chamber, for ignition over the hearth, and these passages and openings
may be regulated by any convenient means so as to govern the amount of air
admitted, according to the operation being carried on.
Dampers or valves are employed for cutting off the admission of the gases to the
metal chamber when desired.
By our invention the producer gases, by reason of their contact with the hot
sides of the furnace, during their journey along the longitudinal passages or flues,
become thoroughly fixed, and the air becomes highly heated before entering the
metal chamber, thus a more perfect conibustion is ensured, a considerable saving in
fuel effected, and abatement of smoke obtained.
And in order that our invention may be readily understood and carried into effect,
we proceed to describe the same with reference to the drawings hereunto annexed.
Fig. 1 is a longitudinal vertical section; Fig. 2 a longitudinal horizontal section,
on the line 1, 1, of Fig. 1; and Fig. 3 a transverse section on the line 2, 2, of
Fig. 1 showing one arrangement of our invention as applied to a puddling furnace.
Figs. 4 to 9 show another arrangement of our invention, also applied to a
puddling furnace, Fig. 4 being a side elevation; Fig. 5 a plan; Fig. 6 a transverse
section on the line 3, 3, of Fig. 4; Fig. 7 a longitudinal vertical section on the
line 4, 4, of Fig. 5; Fig. 8 a longitudinal horizontal section on the line 5, 5, of
Fig. 7; and Fig. 9 a transverse section on the line 6, 6, of Fig. 7.
In all the figures like letters indicate similar parts; and the plain arrows indicate
the direction of the gases, and the feathered ones that of the air.
Referring more particularly to Figs. 1, 2, and 3, a is the gas producer, which
according to this arrangement is situated inmediately below the chimney stack b;
ande is the metal chamber in which the producer gases are burned, this chamber
thus constituting a combustion chamber. The gases, as they are generated in the
producer, pass through the ports a¹ and enter the passages or flues a' by way of the
culverts they then pass along these passages or flues a² and reach the port a¹
formed in the back wall a*, by means of which they are directed into the metal
chamber. Instead of making this port at right angles to the back wall a*, as shown
in the drawings, it can be made more or less at an inclination so that the gases can
be directed onto the metal on the hearth. The air to support combustion enters
through the inlets or grids d', passes along the passages or conduits d, and reaches
the port d. This port is arranged to surround the gas port a* (as best seen at
Fig. 9) so that the incoming gases will more effectually be mixed with the air, and,
at the same time, the roof and walls of the metal chamber, will be, to a certain
extent, protected by a jacket of air intervening between the gas and said roof and
walls. The gases and air, by reason of their journey through the flues, become
raised to a higher temperature before entering the metal chamber, and the gases
become fixed. a, a, are dampers arranged in the culverts a³, and d³, d³, are other
dampers arranged in proximity to the grids . By means of these dampers the
puddler can conveniently regulate the inlet of gases and air, or entirely cut them
off, if required.
In order to take the weight of the chimney stack off the producer furnace, we
provide joists e supported on columns e' which latter rest upon solid masonry
below.
Fuel is fed to the producer through the opening a, from a hopper, and ashes are
removed from the ash-pit a' through the opening a, which is furnished with a tight-

page_text: fitting door. We prefer to employ an under-grate blower to aid in creating a
draught through the furnace.
The floss holes f, are disposed immediately above the producer and are thus kept
at a sufficient temperature to prevent the cinder or slag, as it flows through them,
from becoming cold and choking them up.
In the arrangement shown by Figs. 4 to 9, the producer is located laterally to the
chimney stack, instead of below it, and in this case we employ external pipes g for
conducting the gases from the producer to the gas flues a². In other respects the
furnace is similar in construction to that already described with reference to Figs. 1, 2,
and 3, the producer being situated near one end of the structure and the inlet to the
metal chamber at the other.
Instead of forming the gas passages and air passages in the side walls of the
metal chamber, the gas passages may be arranged beneath the hearth, or in any
other suitable position, which will enable the gases to get fixed and enter in a highly
heated condition; and the air passages may be arranged in the crown or roof of the
metal chamber, or in any other suitable position which will ensure the air being
sufficiently heated prior to its entry into the metal chamber.
We may, in some cases, provide the crown or roof of the furnace with a hanging
bridge, or with a baffler, or bafflers, so disposed as to cause the body of flame to be
more effectually directed and impinge onto the metal under treatment. Or the
crown or roof of the furnace may itself be so formed as to bring about the same
effect.
Although we have described and shown our invention as applied to a puddling
furnace it may be applied to other like or reverberatory furnaces.
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 :-
1. Constructing gas-fired puddling and like furnaces in such a manner that the
producer forms an integral portion therewith, and the gases generated in such
producer are conveyed, through suitable passages or flues, to the opposite end of
the structure where they meet and mix with atmospheric air and are ignited and
burned in the metal chamber, the products of combustion passing thence to a
chimney stack situated at or near the producer end of said structure, substantially
as described.
2. In a gas-fired puddling or like furnace, the gas passages or flues (such as a³)
and the air passages or conduits (such as d) both formed in the brickwork of the
metal chamber and extending from the producer end of the structure to the opposite
end thereof, the passages a² serving to conduct and fix the gases, and the passages d
to conduct and heat the air, prior to their entry into the metal chamber, together
with means for regulating the inlet of the gases and the air; substantially as
described and shown in the drawings.
3. Constructing puddling and like furnaces with the passages for the gases below
the hearth and the passages for the air in the roof or crown of the furnace,
substantially as set forth.
4. The improved construction of gas-fired puddling furnace, substantially as
described and shown with reference to Figs. 1, 2, and 3 of the annexed drawings.
5. The improved construction of gas-fired puddling furnace, substantially as
described and as shown with reference to Figs. 4 to 9 of the annexed drawings.
Dated
ユー
. 1 1000
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicants.