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US1160817A
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Means for utilizing the heat of molten slag.
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US1151332A
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Mixing apparatus.
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US1081921A
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Method of utilizing iron, blast-furnace, flue-dust.
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US1135489A
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Means for increasing the air-blast of converters and furnaces.
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US1135488A
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Method of treating ores.
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US1046939A
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Metal railway cross-tie.
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US977996A
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Method of smelting and refining copper ores and compounds.
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US977922A
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Converter.
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US900467A
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Method of recovering values from flue-dust and fines.
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US870925A
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Converter.
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US865671A
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Converter.
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US900466A
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Method of smelting ores.
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US832948A
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Method of recovering iron and steel from slags.
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US895939A
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Method of treating ores.
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US832833A
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Method of extracting metal values from ores.
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US846891A
|
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Copper-refining furnace.
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US902047A
|
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Liquation-furnace.
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US806621A
|
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Copper-refining furnace.
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US796175A
|
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Converter for bessemerizing matte.
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GB190508386A
|
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Improved Method of Smelting Ores and Separating Mattes and of Recovering Mineral Values from Slag.
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