AN IMPROVED ARRANGEMENT OF PLANT IN STEEL WORKS WITH OPEN-HEARTH FURNACES AND APPARATUS FOR WORKING THE SAME
Year: 1884

page_text: I, JAMES RILEY, General Manager to The Steel Company of Scotland, Limited,
of 150 Hope Street, Glasgow, in the County of Lanark, North Britain, do hereby
declare the nature of my said invention for "AN IMPROVED ARRANGEMENT OF
PLANT IN STEEL WORKS WITH OPEN-HEARTH FURNACES AND APPARATUS FOR
WORKING THE SAME" to be as follows:-
My said Invention has principally for its object to reduce the cost of making
steel on the large scale, by diminishing the extent and cost of plant for doaling
with large quantities and generally by arranging the apparatus so as to facilitate
the operations dealing with the steel on its way from the furnace to the cogging
mill and shears.
In carrying out the Invention with a number of the open-hearth steel furnaces
arranged in a row, a line of rails is laid along them at the side at which the steel is
tapped, and a carriage or truck running on the rails has mounted on it a ladle for
receiving the molten steel from any of the furnaces. At any convenient point
along the line of rails hydraulic apparatus is placed for tipping or for raising and
tipping the ladle carried by the truck, and for thereby transferring the steel from
it to a ladle carried by an hydraulic centre crane or turning and hoisting apparatus.
This crane is at the centre of a pit more or less like what is known as a Bessemer
casting pit, the ingot moulds being arranged in it so as to occupy part of a circle,
and the crane ladle being moved round so as to fill the moulds one after the other
in a well understood way. For the purpose of tipping or raising and tipping the
truck ladle that ladle is fitted with two pairs of horizontal trunnions or studs, one
pair being in a vertical plane passing through the middle of the truck and serving
for the attachment of the links or chains by means of which the ladle is lifted or
tipped, and the other pair being in a plane passing near the pouring lip, and having
rollers to work in stationary guides. The guides are constructed to limit the
upward movement of the studs, and when the studs reach the limit the further
continuance of the lifting action on the other studs causes the la'lle to tip or turn
over and pour out the molten steel.

page_text: In connection with the casting pit what are known as soaking pits are constructed
at suitable points close to the casting pit, and hydraulic or other suitable cranes
are provided in positions for conveniently transferring the ingots from the casting
pit to the soaking pit, and for subsequently transferring the ingots from the
soaking pits to the cogging mill. The cogging mill may be of any suitable known
kind, but is by preference of an improved automatic kind which will form the
subject of another application for Letters Patent. After each ingot has been
treated in the cogging mill and reduced to a slab of the desired breadth and
thickness it is transferred by the crane to hydraulic shears to be cut down to
the desired size and weight, and is finally transferred to a truck or bogie to be
conveyed for subsequent treatment. It is a practical advantage of the improved
arrangements that the ingots. being transferred by means of cranes, are not placed
on trucks or bogies until after being reduced to slabs of the desired size and
weight.

page_text: I, JAMES RILEY, General Manager to The Steel Company of Scotland Limited
of 150 Hope Street, Glasgow, in the County of Lanark, North Britain, do hereby.
declare the nature of my said invention for "AN IMPROVED ARRANGEMENT OF PLANT.
IN STEEL WORKS WITH OPEN-HEARTH FURNACES AND APPARATUS FOR WORKING THE
SAME" and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, that is to say :-
My said Invention has principally for its object to reduce the cost of making
steel on the large scale, by diminishing the extent and cost of plant for dealing
with large quantities and generally by arranging the apparatus so as to facilitato
the operations dealing with the steel on its way from the furnaces to the cogging
mill and shears.
The improved arrangements adopted in carrying out my Invention are shown in
explanatory diagrams on two accompanying sheets of drawings, the same reference
numerals being used in these drawings to mark the same or like parts wherever
they are repeated. Figure, 1, on sheet, 1, is a general plan whilst figure. 2, on
sheet, 2, is a sectional elevation of a set of steel furnaces and other parts, and
figure, 3, is a vertical section as at right angles to figure, 2.
A number of the open-hearth steel furnaces, 4, being arranged in a row, a line
of rails, 5, is laid along them at the side at which the steel is tapped, and a carriage
or truck, 6, running on the rails has mounted on it a ladle, 7, for receiving the
molten steel from any of the furnaces. At a convenient point along the line of
rails, 5, bydraulic apparatus comprising a cylinder, 8, supported by a suitable
standard, 9, is placed for tipping or for raising and tipping the ladle, 7, carried by
the truck, 6, and for thereby transferring the steel from it to a ladle, 10, carried
by an bydraulic centre crane or turning and hoisting apparatus, 11. In the
drawings the truck ladle, 7, is represented as having been lifted off the truck, 6,
and as about to be tipped so as to transfer its contents into the crane ladle, 10.
The crane, 11, is at the centre of a pit more or less like what is known as a Bessemer
casting pit the ingot moulds, 12, being arranged in it so as to occupy part of a
circle, and the crane ladle, 10, being moved round so as to fill the moulds one after
another in a well understood way.
For the purpose of tipping or raising and tipping the truck ladle, 7, that ladle is
fitted with two pairs of horizontal trunnions or studs, one pair a being in a
vertical plane passing through or near the middle of the ladle and serving for the
attachment of the links, 13, or it might be chains, by means of which the ladle is
lifted or tipped and the other pair, b, being in a plane passing near the pouring
lip, and being arranged to enter stationary guide notches in a fixed frame, 14,
which limits the upward movement of the studs b. When the ladle, 7, has by
means of the hydraulic cylinder, 8, been raised until the studs, b, have reached the
limiting frame, 14, the further continuance of the lifting action on the other
studs, a, causes the ladle to tip or turn over and pour out the molten steel,

page_text: In connection with the casting pit, what are know as soaking pits, 15, are
constructed at suitable points close to the casting pit, and hydraulic or other
suitable cranes, 16, are provided in positions for conveniently transferring the
ingots from the casting pit to the soaking pits, and for subsequently transferring
the ingots from the soaking pits, 15, to the cogging mill, 17. The cogging mill may
be of any suitable known kind, but is by preference of an improved automatic
kind forming the subject of another application for Letters Patent numbered
10688 of 1884. After each ingot has been treated in the cogging mill, 17, and
reduced to a slab of the desired breadth and thickness it is transferred to hydraulic
shears, 18, to be cut down to the desired size and weight, and is finally transferred
to a truck or bogie, 19, to be conveyed for subsequent treatment. The ingot is
moved through the cogging mill 17, by preference on rollers, 19, and is conveyed
by a further series, 20, of such rollers to the shears, 18, and bogie, 19.
It is a practical advantage of my improved arrangements that the ingots being
transferred by means of cranes and rollers, are not placed on.trucks or bogies until
after being reduced to slabs of the desired size and weight.
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
1-The improved arrangement of plant in steel works with open-hearth furnaces,
substantially as hereinbefore described.
2-The combination of apparatus bereinbefore described for working the plant of
steel works with open-hearth furnaces.
3-The apparatus for tipping or raising and tipping the ladle, 7, into which the
steel is first run, the said apparatus being arranged and operating substantially as
and for the purposes hereinbefore described.
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