Improved Casting Process and Apparatus therefor.
Year: 1899

page_text: Date of Application, 27th Sept., 1899
40th An 1000 Annanted 20th lon 1600
PROVISIONAL SPECIFICATION.
Improved Casting Process and Apparatus therefor.
I, HERMANN FRANK, of Schiffgraben 14, Hanover, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
The present invention has for its object a process for casting iron goods, such
as T-shaped iron bars or other articles, by which the iron obtained by the Bes-
semer process is forced into the mould by means of hydraulic pressure; this mould
is cooled from the outside to such a degree that the iron leaves the mould in
rough state and quite warm; it is then rolled in the usual way into the known
shape of T or any other form. By means of the present invention the casting
pan, the lifting cranes and the chills can be dispensed with; in like manner the
wheeled furnace and the first rollers are unnecessary. In consequence thereof
the costs of the product are very low and the process is also considerably cheaper
than hitherto. A greater amount of work can be done in a given time by this
process and a continuous working can be attained.
.
The accompanying drawing illustrates the apparatus for carrying out the
present process..
All the apparatus necessary for executing this process are mounted on a rotary
table in such a manner that the cylinder P receiving the fluid iron can be brought
with its opening O under the mouth of each of the Bessemer crucibles mounted
in a circle. The opening 0 of the cylinder B can be shut; the cylinder Phas
on its inside an acidic or basic wall F. A piston K moves in this cylinder, the
piston rod of which is directly connected with the piston of an hydraulic
cylinder that is mounted immediately behind the first cylinder P. The cover
of the cylinder P is provided with an exchangeable mould S the shape of which
conforms to the iron shape to be produced; the inside of this moulding piece is
likewise covered with an acidic or basic wall; it is cooled from the outside by any
device adapted therefor.
Having described the mechanical arrangement of parts for this process, the
manner of executing the same is as follows:
Suppose the iron in the Bessemer furnace is ready for casting, then the aper-
ture of the cylinder P is opened by removing the cover V and the contents of
the furnace delivered into the cylinder P. The piston K must be for this purpose
has been filled the
in the position shown in the drawing. After the cylinder
Bessemer furnace is lifted again and the opening hermetically closed. There-
upon water under pressure is let into the hydraulic cylinder Z, and the piston K
is slowly driven forward and the iron is pressed into the mould S. This mould
may be conveniently somewhat conical for strengthening the casting.
For keeping the iron contained in the cylinder P almost liquid, the latter may
be heated from the outside if necessary.
ca Lamban 1800
HERBERT HADDAN & Co.,
Agents to the Applicant.

page_text: Improved: Casting Process and Apparatus therefor.
I, HERMANN FRANK, of Schiffgraben 14, Hanover, in the Empire of Germany,
Engineer, 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:-
The present invention has for its object a process for casting iron goods, such
as T-shaped iron bars or other articles, by which the iron obtained by the Bes-
semer or other process is forced into the mould by means of hydraulic pressure;
this mould is cooled from the outside to such a degree that the iron leaves the mould
in rough state and quite warm; it is then rolled in the usual way into the
known shape of Tor any other form. By means of the present invention the
casting pan, the lifting cranes and the chills can be dispensed with; in like
manner the wheeled furnace and the first rollers are unnecessary.
In conse-
quence thereof the costs of the product are very low, and the process is also con-
siderably cheaper than hitherto. A greater amount of work can be done in a
given time by this process and a continuous working can be attained. The
drawings filed with my Provisional Specification illustrate the apparatus for
carrying out the present process.
All the apparatus needed for executing this process are mounted on a rotary
table in such a manner that the cylinder P receiving the fluid iron can be brought
with its opening O under the mouth of each of the Bessemer crucibles mounted
in a circle. The opening of the cylinder B can be shut; the cylinder P has
on its inside an acidic or basic wall F. A piston K moves in this cylinder, the
piston rod of which is directly connected with the piston of an hydraulic
cylinder Z that is mounted immediately behind the first cylinder P. The cover
of the cylinder P is provided with an exchangeable mould S the shape of which
conforms to the iron shape to be produced; the inside of this moulding piece is
likewise covered with an acidic or basic wall; it is cooled from the outside by any
device adapted therefor.
Having described the mechanical arrangement of parts for this process the
manner of executing the same is as follows:-
-
Suppose the iron in the Bessemer furnace is ready for casting, then the aper-
ture of the cylinder P is opened by removing the cover V and the contents of
the furnace delivered into the cylinder P. The piston K must for this purpose be
in the position shown in the drawing. After the cylinder P has been filled the
Bessemer furnace is lifted again and the opening hermetically closed. There-
upon water under pressure is let into the hydraulic cylinder Z, and the piston K
is slowly driven forward and the iron is pressed into the mould S. This mould
may be conveniently somewhat conical for strengthening the casting.
For keeping the iron contained in the cylinder P almost liquid the latter may
be heated from the outside if necessary.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed I declare that what
I claim is
The process for producing iron of T shaped or other form or other articles,
consisting of leading the liquid iron from a Bessemer or other furnace into a

page_text: cylinder P the piston of which presses it into the mould S exchangeably mounted
on the cover of the said cylinder which mould is cooled from the outside for
delivering the iron in a hot state adapted to be immediately rolled.
Dated this 16th day of November 1899.
HERBERT HADDAN & Co.,
Agents to Applicant 18, Buckingham Street, Strand, W.C.