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Grain cleaning and grading machine |
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Description
The figure represents the improved machine, as used in the rule for grinding mills. The same is so arranged that the grain by means of a vibration screen and the coarser parts, as stones, pieces of iron, beans, peas, etc. is driven to be separated from the same, then the grain passes into a drum with friction plates, through which it by means of an iron wings, to make 500 revolutions per minute. |
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