Bethlehem Steel Corporation

Edward T Witek

Alvin M Nestler

John P Hoffman

Donald J Idstein

John L Hogan

A method and apparatus for inserting a nozzle into the discharge bore of a steelmaking vessel including a carriage and a clamp means for demountably attaching the nozzle to the carriage. The apparatus further includes means to move the carriage toward or away from the steelmaking vessel while at the same time rotating the nozzle about its longitudinal axis as it is pressed into the discharge bore.

Method and apparatus for installing a nozzle insert in a steelmaking

A nozzle extraction tool for removing a worn nozzle insert from a steelmaking vessel. The nozzle extraction tool including a support frame, a gripper assembly, and a drive piston for applying a force to the gripper assembly. The gripper assembly includes pivotal gripper arms and a rod assembly for pivoting and rotating the gripper assembly 360.degree. about the longitudinal axis of the worn nozzle insert. The rod assembly enables the gripper arms to be securely seated against the uneven surfaces of the worn discharge bore extending through the nozzle insert.

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Hobart, IN, United States of America

Edward T Witek