provements in Apparatus for Heating Furnaces or other Appliances for Metals, Glass, or other Materials.
Year: 1892

page_text: Date of Application, 9th Feb., 1892
Complete Specification Left, 9th Nov., 1892-Accepted, 10th Dec., 1892
PROVISIONAL SPECIFICATION
Improvements in Apparatus for Heating Furnaces or other Appliances
for Metals, Glass, or other Materials.
We JOHN ARTHUR YEADON of 4 Albion Place Leeds, Engineer, and WILLIAM
ADGIE of 68 St. Mark Street Leeds, Accountant, both in the County of York do
hereby declare the nature of this invention to be as follows:-
Our present invention is connected with our previous Patent of November 29 1889,
No. 19183 as hereinafter described; and consists in the application or combination
of the above Patent or any parts of it for the purpose of producing gas for use,
either alone or in combination with water gas or other gases, in furnaces or other
apparatus for smelting, or for the heating or welding of steel or other metals, or
glass, or for other analogous purposes.
In the following Specification to save repetition we shall use the word steel; but
our invention is intended to be equally applicable for any furnaces or other
apparatus used for the purpose of heating or welding steel or other metals, glass or
other materials, where the use of gas is applied to bring such materials into a
highly heated or semi-fused condition suitable for working or welding.
:
We are fully aware that there is no novelty in heating any of the above materials-
by gas; we also know that there are already in operation several different systems.
or methods for manufacturing the gas used for obtaining this result. The com-
plication of the apparatus in some cases, and the irregularity of production in others,
have prevented this principle being fully successful. Our process is designed to
overcome these objections.
In our Patent of November 29, 1889, we describe our revolving retort by the
use of which the coal can be mechanically and continuously fed into the retort
where it is distilled, the gas generated, and the cinders discharged without any loss
of gas or admission of air; and in which hand labour for stoking the retort is
materially reduced or altogether dispensed with. In our present invention we
propose to use this principle of our revolving gas retort, and in addition, to heat
the same preferably by its own crude gas, i.e., the gas generated in the revolving
retort itself; and also to combine the use of this revolving retort so heated and the
gas so generated either alone or in combination with water gas or other gases, for
the purpose of being applied to or in furnaces or other apparatus for heating or,
welding steel or other metals, glass, or other materials where such are required to
be brought into a heated condition for being worked or welded; or for other'
analogous purposes.
In carrying out our invention we arrange for the coal to be delivered into any
suitable bunker or hopper, from which it can fall direct or be raised by elevators
or other apparatus into the feed hopper of the revolving retort. We also make any
suitable arrangement by which the quantity of coal to be distilled and consequently
the amount of gas to be produced can be regulated as required. Any motive.power
can be employed for driving the retort and elevators, but we prefer having a
separate and independent engine for more fully controlling the necessary quantity
of coal to be distilled and gas to be generated.
As stated above we preferably heat our retort by gas which we arrange to be
carried out as follows. We make a connection to any part of the ascension pipe or
other connections leading from it containing the gas, from and through which we
convey the gas to the combustion chamber underneath.the retort; and by means of.
suitable doors and inlet valves we regulate the admission of the gas and the proper.
quantity of air for the combustion of the same. Our retorts can also be heated by:
1

page_text: coke fires, or by coke fires along with gas, but we prefer to heat them by the gas
alone as above described.
Our retorts can be so arranged in working that there is always a pressure of gas
inside sufficient to force itself onward through the ascension pipe, whence it can be
conveyed either alone or in combination with water gas or other gases as required,
direct into the combustion chamber under the retort for the purpose of heating the
same; and also into heating furnaces or other apparatus used for smelting, welding,
or working; or it can be drawn by an "exhauster" and forced forwards as required.
The cinders produced in the retort after the distillation of the coal can be delivered
into any water-sealed cistern from whence they can be raised continuously by
suitable elevators or other apparatus & delivered where required. By our process
all the heating properties can be extracted from the coal whilst passing through the
retort, whilst the gas thus produced, which can if required be combined with water
gas or other gases as above described, is conveyed into the combustion chamber
under the retort, or into the heating furnaces or other appliances, each of these
being fitted up when required with suitable apparatus and regulating valves for the
admission of the gas and sufficient air for the efficient combustion of the same.
The sizes and numbers of our retorts are regulated by the number and sizes of
the furnaces or other appliances to be heated; suitable means being provided by
which the quantity of gas to be generated can be increased or decreased as required
by regulating the number of revolutions of the retorts, or the quantity of coal fed
into them, or heat applied to the same.
By our process the coal being converted into gas, little or no smoke is emitted;
whilst the retorts and the furnaces or other appliances can be heated with gas
which undergoes thorough combustion by the admission of sufficient air for the
same. The whole process can thus be-made-mechanical-and automatic; the hand
labour ordinarily required is reduced to a minimum or dispensed with; the arrange-
ment, construction and working of the retorts and connections are simple and
inexpensive; and we purpose carrying out our invention substantially as above
described.
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י
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1000
JOHN ARTHUR YEADON.
WILLIAM ADGIE.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Heating Furnaces or other Appliances
for Metals, Glass, or other Materials.
We, JOHN ARTHUR YEADON, of 4, Albion Place, Leeds, Engineer, and
WILLIAM ADGIE, of 68, St. Mark Street, Leeds, Accountant, both in the County
of York 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 :-
Our present invention is connected with our previous Patent of November 29,
1889, No. 19183, as hereinafter described; and consists in the application or com-
bination of the above l'atent or any parts of it for the purpose of producing gas
for use, either alone, or in combination with water gas or other gases, in furnaces
or ather apparatus for smelting, or for the heating or welding of steel or other
metals, or glass, or for other analogous purposes.
In the following Specification, to save repetition, we shall use the words
"Furnace" and "Steel;" but we claim in our invention the use or application of
the gas produced in our revolving retort, either alone or in combination with other
gases, to any furnaces or other apparatus used for the purpose of heating or welding
steel or other metals, or glass, or other materials, where the gas so used is applied
to bring such materials into a highly heated or semi-fused condition suitable for
working or welding.

page_text: We are fully aware that there is no novelty in heating any of the above materials.
by gas; we also know that there are already in operation several different systems.
or methods for manufacturing the gas used for obtaining this result. The com-
plication of the apparatus in some cases, and the irregularity of production of gas
in others, have prevented these systems being satisfactorily successful.
Our.
process is designed to overcome these objections, by producing suitable gas,
regularly, and at a small cost for the above mentioned purposes.
In our Patent of November 29, 1889, we describe our revolving retort, by the
use of which the coal can be mechanically and continuously fed into the retort,
where it is distilled, the gas generated, and the cinders discharged without any loss
of gas or admission of air; and in which hand labour for stoking the retort is
materially reduced or altogether dispensed with.
In our present invention we propose to use this principle of our revolving retort,
& preferably to heat the same with its own crude gases, i.e., those generated in the
revolving retort itself; and also to combine the use of this revolving retort, so
heated, and the gases therein generated, either alone, or in combination with water
gas or other gases, as may be found most suitable, for the purpose of being applied.
to or in furnaces or other apparatus for heating or welding steel or other metals,
glass, or other materials, where such are required to be brought into a heated
condition for being worked or welded, or for other analogous purposes.
In carrying out our invention, we arrange for the coal to be delivered into any
suitable hopper, from which it can fall direct or be raised mechanically into the
feed hopper of the revolving retort. We also provide any suitable arrangement by.
which the quantity of coal to be distilled and consequently the amount of gas to be
produced can be regulated as required. Any motive power can be utilised for
driving the above, preferably a separate & independent engine for better controlling
the coal to be distilled & gas generated.
As stated above, we preferably heat our retort by gas, arranged by making a
connection to any of the pipes leading from the ascension pipe, and conveying the
gas so obtained to the combustion chamber of the retort; this gas being mixed, by
means of suitable valves & doors, with the proper quantity of air for the satisfactory
combustion of the same.
We carry out the working of our invention as follows. In the accompanying
drawing,
Fig. 1 shows a longitudinal section of a furnace, and Fig. 2 the front elevation of
our revolving retort; with the pipe connections by means of which the gas therein
produced can be mixed with any suitable quantity or proportion of air before
passing into the combustion chamber of the furnace. L is the revolving retort
rotating on the rollers N, N, and having an ascension pipe M for the exit of the
gas therein produced. The connecting pipe K conveys the gas thus made to the
pipe G wherein it is mixed with a suitable proportion of air preparatory to entering
into the furnace for combustion. A is the furnace, D the combustion chamber,
B the chimney, E the furnace door and frame, & F the inlet pipe for the gas for
combustion.
We combine our revolving retort L, with any suitable mechanical arrangement
whereby the quantity of coal to be distilled (and consequently the amount of gas to
be produced) can be regulated as required; using any. motive power for driving
the same, and preferably heating our retort with gas. We apply the gas thus
produced, either crude or purified, mixed with air, or with water-gas or other
gases, for the purpose of heating steel or other metals, or glass in a furnace. The
gases thus used may if desirable, be heated before entering into the combustion
chamber.
. The furnace we have shown is of a simple construction; but our invention is
designed for heating any furnaces for the above mentioned purposes.
By means of our revolving retort, the whole of the heating properties of the coal
can be extracted. The gas thus produced, can be conveyed into any suitable
combustion chamber connected with the heating furnace; or, as we have shown it,
'

page_text: mixing it first with a suitable quantity of air and then conveying this mixed air &
gas direct into the combustion chamber D, with the door & frame E. Through
the centre of this door we insert the pipe F extending a little way into the com-
bustion chamber D; this is connected to the pipe G, which continues say some 20
or 30 feet from the combustion chamber, being open at H to the atmosphere, but
having a valve or door at that inlet to regulate the admission of the proper quantity.
of air.
Within a few feet of this inlet air end, we connect the pipe K, of smaller
diameter, to the pipe containing the gas produced by the revolving retort L. This
inlet gas pipe is also fitted, in any point of the pipe K, with a valve to arrange or
regulate the proper proportion of the gas to be used. The heating furnace is
constructed so that no air or gas can enter into the combustion chamber D except
through the pipe F.
The continuous action of combustion draws the air & gas through the main
pipe G into the combustion chamber D at the point F; the regulating valves at H
and in pipe K adjusting the proportions of gas & air found most suitable for
combustion and heating, as they become thoroughly mixed together in the
pipe G.
By our process, no smoke can be emitted as all the coal is converted into gas,
both for heating the furnace & also for beating the revolving retort if required.
The whole process can thus be inade mechanical & automatic; the hand labour
ordinarily required is dispensed with or reduced to a minimum; the connections for
mixing the gas and air and conveying them to the heating furnace are simple and
inexpensive; and we purpose carrying out our invention substantially as above
described.
--
Having now therefore described and particularly ascertained the nature of our
invention, and in what manner the same is to be performed, we declare that what
we claim is
1
1. The use or combination of our-revolving retort and the gas therein produced-
for heating furnaces used for heating steel, metals, glass, or other analogous
purposes.
2. The use or combination of the above gas, mixed with air, or water gas, or
other gases, for the above heating purposes.
Dated this 8th day of November 1892.
JOHN ARTHUR YEADON.
WILLIAM ADGIE.