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US810249A
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Method of refining copper.
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US864719A
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Means for preventing escape of unfused ore from smelting-converters.
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US805896A
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Finishing-converter.
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US822713A
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Method of utilizing as fuel the volatile portions of sulfid ores.
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US886030A
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Smelting converter and forehearth.
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US830040A
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Method of smelting ores and separating mattes.
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US808618A
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Method of converting matte.
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US822712A
|
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Method of melting primary baths for dissolving ores.
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US796174A
|
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Copper-converter.
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US806046A
|
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Method of converting matte.
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US806045A
|
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Method of converting matte.
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US796170A
|
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Converter-lining.
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US856616A
|
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Forehearth.
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US805738A
|
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Tilting mold for casting copper plates.
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US795092A
|
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Converter.
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US796169A
|
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Method of lining converters.
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US789133A
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Apparatus for distributing molten slag in blast-furnaces.
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US766656A
|
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Method of producing matte.
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US766655A
|
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Method of smelting ore and cleaning converter-slag.
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US766654A
|
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Method of recovering values from ores by dissolving in molten baths.
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