(under subclass 182.1) Apparatus including means for treating or maintaining the molten metal support.
(1) Note. Included herein are means to maintain better temperature distribution in the metal bath, means to limit contact with atmospheric gas, and means to free or prevent undesirable material from accumulating in the metal bath, etc.
(2) Note. Also included is molten metal effecting treatment of upper surface of glass advanced on molten metal bath.
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182.5, for differences in liner thickness or arrangement to cause desired heat transfer conditions along molten metal bath.