Kennecott Copper Corporation

Leonard K Bailey

David B George

A gas sampling probe for industrial furnaces, such as reverberatory furnaces used in extractive metallurgy, is constructed with a sample tube concentrically disposed within a shield tube and spaced therefrom to provide an annular passage for a coolant fluid, such as steam or water vapor, which is discharged from the shield tube through ports therein located, for example, above the open lower end of the sample tube, as well as through the lower open end of such shield tube. The shield tube extends below the lower open end of the sample tube as a protection against accretion build-up, and an annular partition plate which is secured to the shield tube but terminates short of the sample tube permits free expansion and contraction of the sample tube while limiting discharge of the coolant fluid through the lower open end of the shield tube.

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Salt Lake City, UT, United States of America

Leonard K Bailey