Appeal No. 95-4314 Page 2
Application No. 07/963,524
BACKGROUND
The appellants' invention relates to a ladle for the
preparation of metal and a method for producing a refractory
bottom lining for the ladle. An understanding of the invention
can be derived from a reading of exemplary claims 12 and 13,
which are reproduced below.
12. A ladle for the preparation of metal and adapted to
be turned over, comprising:
an open-top metal case having a generally cylindrical side
wall and a generally flat circular bottom,
a refractory side wall lining and a refractory bottom
lining having a tap hole disposed on an inner surface of said
case,
wherein a surface of said bottom lining for contacting the
metal in preparation is concavely curved and having at every
point a slope in a direction toward said tap hole,
wherein said tap hole is eccentrically located with
respect to the center of said bottom,
wherein said refractory bottom lining is formed by at
least an assembly of independent elements with joints
therebetween, and
wherein said assembly of the independent elements forms a
mosaic having joints, some of said joints being arcuate and
concentric with the tap hole and remaining joints radiating
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