Vertical spindle pulverisers - LEONARD; KEITH W. G.
I claim 1. A vertical spindle pulverizer comprising a housing structure; 2. A vertical spindle pulverizer as claimed in claim 1 in which a plurality of air outlets are mounted in said feed hopper near the exterior opening thereof, said outlets being directed toward the interior of the hopper and being connected through said valve to said source of compressed air.
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