12,703. Blair, D. A., and Hulme, W. June 13. Sifting sugar.-Sugar, which has been dried in an elevator 2, 3, 4, passes by rollers 15 to a vibrating sieve 16, which passes the lumps to a receptacle 17 and the finer material to a sieve 18, which divides it into three grades which pass to receptacles 19, 20, 21.
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