B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
39/81, 22/82
B22D 41/02 (2006.01)
Patent
CA 1063802
Abstract of the Disclosure The invention relates to refractory shapes for use in the lowermost courses of the walls of ladles and the like where an adjustment for a taper may be necessary. Each shape has opposed side surfaces, one of those surfaces having a thickness greater than the other surface, the side surface as being planar and substantially parallel. The shape also has opposed upper and lower surfaces, one of the upper and lower surfaces being relatively flat, the other being arcuate. In addition the shape has opposed end surfaces, the end surfaces being respectively convexly curved and concavely curved. When two layers of the refractory shapes are used in a metallurgical vessel, the lowermost layer will have an arcuate upper surface and the uppermost layer will have an arcuate lower surface, meeting with the arcuate upper surface of the lowermost layer. The uppermost ring of shapes is thus adapted to rotate on the lowermost ring of shapes toward and away from the metal shell to provide a relatively square relationship with the metal shell.
254422
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