Year: 1899

page_text: Date of Application, 12th Jan., 1699
Complete Specification Left, 19th Apr., 1899-Accepted. 10th June, 1899
Date of Application, rain Jan., 1999
Complete Specification Left, 19th Apr., 1899-Accepted. 10th June, 1899
We, CHARLES JOHN BAGLEY, General Manager, and THOMAS WILLIAMS, Works
Manager, both of the South Durham 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 consists of a specially constructed bottom plate for ingot moulds
to stand in the vertical position in which they receive the charge of molten steel
which forms the ingot.
Hitherto the bottom plate has been constructed with a flat and level surface
upon which the ingot mould is placed and when being filled the molten steel is
liable to run out between the bottom edge of the mould and the bottom plate
should the mould happen to tilt; furthermore the mould has a tendency to crack
from expansion of the ingot after which it cannot be used again in connection
with such bottom plates.
The object of our invention is to obviate these defects by providing a bottom
plate of special form.
In carrying our invention into effect we furnish the usual bottom plate with
raised and tapered sides and ends forming a wall corresponding to the configura-
tion of the bottom of the ingot mould or where the bottom plate is adapted to
accomodate two or more ingot moulds, the wall is continued to form for each ingot
mould a separate enclosure. This wall by its configuration and inside taper sup-
ports the moulds and prevents them from cracking at the bottom by expansion, or
if already cracked acts as a cramp which prevents the crack from opening or rather
causes the expansion of the mould to close the crack thereby preventing the metul
from running out and making fins. In the case of cracked moulds, wedges can
be used between the wall and the mould to prevent the crack spreading.
Special advantages of the construction of bottom plate as herein described are
that the life of the mould is considerably increased and cracked moulds can be used
over again also a great waste of steel is avoided.
Dated 11
T
1000
5
Improvements in Bottom Plates for Ingot Moulds.
We, CHARLES JOHN BAGLEY, General Manager, and THOMAS WILLIAMS, Works
Manager, both of the South Durham Steel and Iron Works, Stockton-on-Tees, in
[Price 8d.]

page_text: 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 consists of a specially constructed bottom plate for ingot moulds
to stand in the vertical position in which they receive the charge of molten steel
which forms the ingot.
Hitherto the bottom plate has been constructed with a flat and level surface
upon which the ingot mould is placed and when being filled the molten metal is
liable to run out between the bottom edge of the mould and the bottom plate
should the mould happen to tilt; furthermore the mould has a tendency to crack
from expansion of the ingot after which it cannot be used again in connection
with such bottom plates.
The object of our invention is to obviate these defects by providing a bottom
plate of special form hereinafter described and illustrated in the drawing hereto
annexed in which Fig. 1 is a sectional elevation of our improved bottom plate as
constructed for the reception of three ingot moulds, showing one ingot mould in
position upon the plate for the reception of the charge of molten steel, correspond-
ing to which Fig. 2 is a plan view showing the bottom plate with the ingot moulds
removed.
In carrying our invention into effect we furnish the usual bottom plate a with
raised and tapered sides a¹ and ends a forming a wall all around the pit or cavity
corresponding to the configuration of the bottom of the ingot mould or where
the bottom plate a is adapted to accomodate two or more ingot moulds the wall
is continued to form for each such ingot mould pit or cavity a separate enclosure.
This wall by its configuration and inside taper supports the moulds in a way which
prevents them from cracking at the bottom by expansion, or if already cracked
acts as a cramp which prevents the crack from opening or rather causes the ex-
pansion of the mould to close the crack thereby preventing the metal from running
out and making fins. In the case of cracked moulds wedges can be used between
the wall and the bottom edge of the mould to prevent the crack extending.
Special advantages of the construction of bottom plate as herein described are
that the life of the mould is considerably increased and cracked moulds can he
used over again indefinitely also a great waste of steel is avoided, as all escape of
steel at the bottom of the mould is prevented.
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 bottom plates for ingot moulds the use of a wall such as a¹a enclosing one
or more pits or cavities corresponding to the configuration of the bottom of the
ingot moulds by which the said moulds are supported and closed in at their bottom
edge, substantially as and for the purposes hereinbefore described with reference
to the accompanying drawing.
Dated 11: 171
1
1000
1000.
G. J. CLARKSON,
Chartered Patent Agent,
Stockton-on-Tees and Hull, Agent for the Applicants