(under the class definition) Apparatus including means to feed raw materials combined with a melting furnace including structurally defined refining or delivery zones.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146, for means to feed coloring additives to a glass melt.
347, for glass furnaces, per se.
SEE OR SEARCH CLASS
414, Material or Article Handling,
147+, for a chamber of a type utilized for a heating function and means for charging or discharging the chamber, and see particularly subclasses 165+ of that area. 432, Heating, appropriate subclasses for glass heating apparatus combined with a glass batch feeder to form molten glass and not including structural features peculiar to working or treating of the molten glass. The claiming of means to convey the molten glass to a working zone does not exclude the patent from Class 432 unless the zone is structurally defined.
