Bead producing process and an apparatus in which sol having enzymes, plant tissues, etc. dispersed therein is dropped into a solidifying liquid through a perforated plate. The sol is fed from a sol supply tank to a position near of the outer periphery of the planet gear of a planetary gear mechanism...http://www.google.fr/patents/US4933122?utm_source=gb-gplus-shareBrevet US4933122 - Process and apparatus for producing beads
