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FR1285582A
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Installation for the continuous drying or calcining of granular material and particularly of plaster
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FR588565A
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Fan for windblocker, with variable air circulation and blades
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DE392609C
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Air separator with spreading disc
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GB156214A
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Improvements relating to the buckets or rotary drying drums
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DE325752C
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Dedusting device in which the dust is separated from the air by centrifugal action
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DE334049C
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Lifting bucket
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DE372705C
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Fuel dust firing
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DE360193C
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Circumferential emptying sluice for the outlet of shaft ovens
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