IMPROVEMENTS IN APPARATUS FOR DRYING THE MOULDS AND CORES USED FOR IRON OR OTHER CASTINGS
Year: 1861

page_text: LETTERS PATENT to Charles Jordan, Ironfounder, of Newport, in the
County of Monmouth, for the Invention of "IMPROVEMENTS IN APPARATUS
FOR DRYING THE MOULDS AND CORES USED FOR IRON OR OTHER CASTINGS."
Sealed the 10th October 1861, and dated the 18th April 1861.
PROVISIONAL SPECIFICATION left by the said Charles Jordan at the
Office of the Commissioners of Patents, with his Petition, on the 18th
April 1861.
IN
I, CHARLES JORDAN, Ironfounder, of Newport, in the County of Monmouth,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
APPARATUS FOR DRYING THE MOULDS AND CORES USED FOR IRON OR OTHER
CASTINGS," to be as follows:-
My Invention relates to a peculiar mode and apparatus for utilizing the
waste heat of cupola and other furnaces for the purpose of heating and drying
moulds, cores, and other articles. The top of the cupola or furnace is covered
with a double or internal and external dome. hood, or cowl: between the
internal and external hood, space is left for the circulation of air or blast, which
is driven or forced into and through it by the fan or other blower through a
separate pipe from that which conveys blast into the furnace for the purpose
of combining with the fuel. The flames and heated gases from the cupola
heat the internal hood, and in passing to the chimney or shaft, also the external
The air so heated is allowed to escape through an outlet pipe or series
Price 81

page_text: of pipes or annular pipe or chamber communicating with the air space, and
attached to the hood either at the base or at the top, or at any other part
of the same. From thence the heated air is conducted by a main pipe and
smaller pipes connected with the same to the moulds, cores, or other objects to
be dried or heated, whether placed on the foundry floor, or in a pit, or chamber,
or stove, and the heated air is either forced through and around such moulds
or cores, or it may be difused equally through such pits, chambers, or stoves,
which are for this purpose connected with a regulating flue. In using a pit I
intend to conduct the heated air to a main pipe in the centre or other con-
venient part of the pit, and from the said main pipe smaller pipes fitted with
telescope and swivel joints, as the case may require, are made to reach to each
separate mould or core, and the heated air is driven through or around them
in an upward, downward, or any other direction best suited for the purpose.
The circulation of the air through the heated hood or cowl, as well as the
quantity of air and the degree of heat, are regulated by suitable dampers,
valves, or other means.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Jordan in the Great Seal Patent Office on the 18th
October 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
JORDAN, Ironfounder, of Newport, in the County of Monmouth, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighteenth day of April, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors. give and grant unto me,
the said Charles Jordan. Her special licence that I, the said Charles Jordan,
my executors, administrators, and assigns, or such others as I, the said
Charles Jordan, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN APPARATUS FOR DRYING THE MOULDS AND CORES USED FOR IRON OR OTHER
CASTINGS," upon the condition (amongst others) that I, the said Charles
Jordan, my executors or administrators, by an instrument in writing under

page_text: my, or their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Charles Jordan, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My Invention relates to peculiar modes and apparatus for utilizing the waste
heat of cupola and other furnaces by applying it to the purpose of heating and
drying moulds, cores, and other articles.
In applying my improvements to the cupola furnace I cover the top of the
furnace with a double or internal and external hood, dome, or cowl of cast iron,
the space between the internal and external dome forming a chamber for the
circulation of air or blast which is driven or forced into and through it by a fan
or other blower through a separate pipe from that which conveys the blast to
the furnace for the purpose of combining with the fuel to melt the iron. The
ignited and heated gases from the furnace are by the action of the blast forced
through the furnace and driven against the soffit or hollow of the dome, and
having no outlet there, are forced through a series of side flues situated below
the hood into the space or chamber formed between the external hood and the
surrounding brickwork, and finally to the chimney or stack, and in passing
around and over the external hood heat also the latter. Divisions may be
formed in the air chamber between the external and internal hood for the
purpose of compelling the blast forced into the chamber to travel in a given
direction on its passage from the inlet to the outlet, whereby it will be brought
in contact with a larger area of heated iron. From the air chamber the heated
air is conducted by a suitable outlet or outlets to the main pipe, which latter
reaches to within a convenient distance of the moulds, cores, or other objects to
be heated or dried, whether placed on the foundry floor, or in pits, chambers,
or stoves, and the heated air may be forced through or around such moulds,
cores, or other objects, or it may be diffused uniformly throughout such pits,
chambers, or stoves, which are for this purpose supplied with a regulating flue
and dampers or valves. In using a pit I prefer to conduct the heated air to a
main pipe fixed in the centre or other convenient part of the pit, and an
enlarged pipe or head secured to the top of such main pipe, and capable of
being turned horizontally round its axis, is fitted with a number of smaller
pipes with telescopic and swivel joints and elbows for the purpose of being

page_text: lengthened or shortened to reach the various objects through or around which
the heated air is driven in an upward, downward, or such other direction as may
best suit the object. The circulation of the air through the heated chamber of
the dome, as well as the quantity of the air and the temperature imparted to it,
are regulated by suitable dampers, valves, or other means. The outlet from
the air chamber of the dome may consist in a pipe or series of pipes, or in an
annular chamber cast or fixed to the dome at the base, or at the top, or at
any other place, as best suited to the shape and construction of such dome,
hood, or cowl.
In the accompanying Sheet of Drawings I have represented one mode of
applying my improvements to a cupola furnace in connection with a pit for
drying moulds for pipes, the same letters of reference denoting similar parts in
the various Figures.
Fig. is a vertical section of the cupola furnace. A is the interior of the
cupola, which is charged through the charging place A¹, before which the
usual stage or platform is fixed; B, B, are the ordinary blast pipes in con-
nection with the culvert from fan C. The ignited and heated gases are driven
into and against the soffit of the internal dome D, as indicated by the arrows
drawn in black, and after circulating through it escape through the side flues E
and enter the space or chamber F formed between the external hood D' and
the fire-brick lining G, and after passing around and over the external hood D¹,
finally escape through the stack H. The air or blast to be heated in the air
chamber D2 of the dome is conveyed to it through the feed pipe I, and after
circulating through it enters the heated air main pipe K.
Fig. 2 is a vertical section of the drying pit in which the moulds for pipes
are placed. The pipe K coming from the dome D, D', reaches to an enlarged
upright pipe K¹, fixed upon a pedestal or pillar L in the centre of the pit M.
The top of the upright pipe K' is fitted with an air chamber or head K²,
which is made to turn round its axis in order to facilitate the connection
between the ends of ths branch pipes N, N, fixed to the head K and the
moulds which have to be dried. The moulding boxes with the moulds O
and O' are placed vertically upon stands P & P¹, and the hot air is forced in
from the top in a downward direction. An iron plate with an aperture to
receive the end of the branch pipes covers the moulds and prevents the escape
of the hot air in that direction. The stands P & P rest upon the hot air
culvert Q, which passes round the pit, and the circulation of the hot air from
the moulds to the hot air culvert Q, can either be stopped or re-established by
means of slide pipes R and R', the lower ends of which are made conical to
fit into cups S and S', fixed to the bottom of the hot air culvert Q. The slide

page_text: pipe R is represented as raised, thereby allowing the hot air to pass through
the mould O and into the culvert Q. The slide pipe R' is shown as lowered
into the cup S', and cutting off the communication between the mould 0¹ and
the hot air culvert Q. The hot air culvert or flue Q is fitted with the necessary
dampers or regulators not shown in the Drawing.
Fig. 3 is a vertical section of a pit with the main hot air pipe K leading
to a short upright pipe K' fixed in the centre and at the foot of the pit. The
upright pipe K is fitted with a revolving head K2, and branch pipes N, N,
which latter terminate with elbows turned upwards.
Fig. 4 is a vertical section on an enlarged scale of the upright pipe K',
head K, and branch pipes N, N, shown in Fig. 3.
Having now described the nature of my said Invention and shown in what
manner the same may be carried into effect, I wish to state that I do not
confine or limit myself to the precise arrangements and details herein described
and shown in the Drawing, but what I claim as the Invention to be secured
to me by the herein in part recited Letters Patent is,--
Firstly, the application and use of a double hood or cowl forming an air
chamber placed on the top of the cupola furnace, in passing through which
the air or blast is heated in the manner and for the purposes herein-before
described.
Secondly, the application and use of the apparatus for conveying and dis-
tributing the air or blast heated by the waste heat of the cupola furnace,
in the manner and for the purposes herein-before described.
In witness whereof, I, the said Charles Jordan, have hereunto set my
hand and seal, this Eighteenth day of October, in the year of our
Lord One thousand eight hundred and sixty-one.
CHAS. JORDAN. (L.S.)