Appeal No. 95-4314 Page 3
Application No. 07/963,524
relative to the arcuate joints, the radiating joints being
offset from one concentric joint to another concentric joint.
13. A method for producing a refractory bottom
lining for a ladle for the preparation of metal and adapted to
be turned over, the ladle having an open top metal case to be
lined that has a generally cylindrical side wall and a
generally flat bottom, the bottom lining having a tap hole
therein, eccentrically located with respect to the center of
the lining and the bottom lining comprising an assembly of
independent elements separated by joints and the surface of the
refractory bottom lining being in contact with the metal in
preparation and being concavely curved and having at every
point a slope in a direction toward the tap hole, the method
comprising the steps of:
producing a mold having a bottom that is convexly curved
corresponding to the concave curvature of the surface of the
bottom lining and having vertical partitioning walls defining
compartments corresponding to the geometry of the elements of
the refractory bottom lining, the walls having a section
corresponding to the section of the joints;
pouring into each of the compartments a selected
refractory concrete and allowing it to set to form the
elements; and
stripping the elements from the mold and providing each
with a reference.
REFERENCES OF RECORD
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Coulson 1,292,582 Jan. 28, 1919
Cope et al.(Cope) 3,333,746 Aug. 1, 1967
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