Glass bead product

Abstract

An apparatus for making beads and a bead product are provided in the form of a member rotatable about a generally vertical axis having an outer peripheral edge adapted to discharge molten material in the form of pellets as the member rotates, means for creating heat on said member sufficient to maintain a molten layer of material being discharged on the walls of said member and fluid cooling means receiving discharged pellets which may be glassy generally spherical particles as solids or having frothy uniform voids surrounded by a glassy smooth surface or having integral crystalline elements.

Dependencies are inferred from the claim text.