Improvements in Stripping Ingots from their Moulds.
Year: 1896

page_text: Date of Application, 30th July, 1896
Complete Specification Left, 30th Apr., 1897-Accepted, 5th June. 1807
PROVISIONAL SPECIFICATION.
Improvements in Stripping Ingots from their Moulds.
We, CHARLES JOHN BAGLEY, General Manager, LLEWELYN ROBERTS,
Steel Works Manager, THOMAS WILLIAMS, Works Under Manager, and THE
MOOR STEEL AND IRON COMPANY, LIMITED, all of The Moor Steel and Iron
Works, Stockton-on-Tees, in the County of Durham,..do hereby declare the :
nature of this invention to be as follows:-
This invention relates to what may be termed an ingot stripper to be used in the
operation of stripping steel ingots of the moulds in which they are cast.
This operation is attended with a certain amount of difficulty inasmuch as the
ingot adheres to the mould over the entire surfaces in contact, and in some cases
the mould having been laid on its side in a slanting position on a cast iron table
commonly called an ingot stripper the ingot is stripped from the mould by great
pressure such as bydraulic pressure.
By our invention we substitute for direct pressure of this kind a shock or sudden
jerk to the mould which detaches the ingot from the mould so that it drops out by
gravity, and the apparatus which is inexpensive and takes up little space can be
applied to each furnace which allows the ingots to be knocked out very easily as
they are taken when hot thus saving time and labour.
We are aware that attempts have been made to employ this means for detaching
the ingot from its mould but hitherto all such attempts have been attended with
the constant or frequent breakage of the mould due to an unequal or misdirected
impact against the resisting body.
By means of our invention we apply the shock or jerk required with certain
and more equal effect and without injury to the mould which can be used several
times over until used up in the ordinary way.
In carrying out our invention we provide a block or resisting body with an
opening or aperture of the size and form to slip the ingot through but not the
mould which is directed to the requisite coincident position with the said opening
by guides. The jerk or impact is applied by withdrawing the support of the
burden chains from the mould which accordingly drops onto the block with a
considerable shock or jerk which dislodges the ingot from its adhesion to the
mould and causes it to drop through the opening provided for the purpose.
It is found in practice that ingots of the usual form have a tendency to form
fins towards their sides and the opening in the block is preferably provided with a
larger clearance towards the sides in consequence leaving the mould to find a seat
or bearing at the ends or opposite parts of the opening taken in the direction of
its greater diameter.
Dated this 20th day of Lule 1906
G. J. CLARKSON,
Chartered Patent Agent,
Stockton-on-Tees, Agent for the Applicants.

page_text: improvem
We, CHARLES JOHN BAGLEY, General Manager, LLEWELYN ROBERTS,
Steel Works Manager, THOMAS WILLIAMS, Works Under Manager, and THE
MOOR STEEL AND IRON COMPANY, LIMITED, all of The Moor Steel and Iron
Works, Stockton-on-Tees, in the County of Durham, 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 :-
This invention relates to what may be termed an ingot stripper to be used in
the operation of stripping steel ingots of the moulds in which they are cast.
"
This operation is attended with a certain amount of difficulty inasmuch as the
ingot adheres to. the mould over the entire surfaces in contact and in some cases
the mould having been laid on its side in a slanting position on a cast iron table
commonly called an ingot stripper the ingot is stripped from the mould by great
pressure such as hydraulic pressure.
By our invention we substitute for direct pressure of this kind a shock or sudden,
jerk to the mould which detaches the ingot from the mould so that it drops out by
gravity and the apparatus which is inexpensive and takes up little space, can be
applied to each furnace which allows the ingots to be knocked out very easily as
they are taken when hot thus saving time and labour.
We are aware that attempts have been made to employ this means for detaching
the ingot from its mould but hitherto all such attempts have been attended with
the constant or frequent breakage of the mould due to an unequal or misdirected
impact against the resisting body.
By means of our invention, we apply the shock or jerk required with certain and
more equal effect and without injury to the mould which can be used several times
over until used up in the ordinary way.
Having described the nature of our invention and its utility we will now proceed
to describe in what way it is to be carried into effect and for that purpose shall
refer to the accompanying drawing in which
Fig. 1 illustrates in clevation a side view of the apparatus with the mould
containing an ingot suspended above it ready to drop,
Fig. 2 being a sectional view taken transversely to Fig. 1 and with the mould
dropped down onto the block and the ingot dislodged into a basin or receptacle
below.
Fig. 3 is a plan view with both mould and ingot removed.
In the figures a is a block or resisting body with an opening or aperture of the
size and form to slip the ingot 6 through but not the mould c which is directed to
the requisite coincident position with the said opening by guides d. The mould
being suspended as shown in Fig. 1 the jerk or impact is applied by withdrawing
the support of the burden chains from the mould which accordingly drops onto the
block a as shown in Fig. 2 with a considerable shock or jerk which dislodges the
ingot from its adhesion to the mould and causes it to drop through the opening
provided for the purpose.
It is found in practice that ingots of the usual form have a tendency for forming
fins towards their sides and the opening in the block a is preferably provided with
a larger clearance towards the sides at a a¹ in consequence leaving the mould to
find a seat or bearing at the ends or opposite parts as a of the opening taken in
the direction of its greater diameter. And furthermore the fins are found to
damage and destroy brickwork and masonry, and we accordingly provide a bowl
of iron or steel for the ingot to drop into as is clearly shown in Figs. 1 and 2.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
In the operation of stripping ingots from their moulds the use of a block with
an opening or aperture to pass the ingot but not the mould and furnished with
guides, all designed and constructed so that when the mould drops onto the block
the shock or jerk dislodges the ingot, substantially as herein before described with
reference to the accompanying drawing.
00h 1f Amil 1907
G. J. CLARKSON,
Chartered Patent Agent,
Stockton-on-Tees, Agent for the Applicants.
G. J. CLARKSON,
Chartered Patent Agent,
Stockton-on-Tees, Agent for the Applicants.