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DE907872C
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Loading device for shaft ovens
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DE505013C
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Device to prevent crooked burning of the material, namely lime, dolomite and the like. Like., in the shaft furnace
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DE387626C
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Feeding device for shaft ovens
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DE343847C
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Masonry for cylindrical structures, such as chimneys, etc. like
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DE339487C
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Automatic discharge device for shaft ovens
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DE523348C
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Device for discharging lumpy goods from shaft ovens with saddle installation
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DE665205C
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Firing for the combustion of dust-like coal for shaft ovens
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DE486640C
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Two-storey furnace, consisting of a lower muffle furnace and an upper chamber furnace heated by the fire gases from the lower furnace
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