414 / | HD | MATERIAL OR ARTICLE HANDLING |
147 | DF | CHAMBER OF A TYPE UTILIZED FOR A HEATING FUNCTION AND MATERIAL CHARGING OR DISCHARGING MEANS THEREFOR {6} |
160 | DF | .~ Charging of chamber {7} |
165 | DF | .~.~ By depositing material onto surface of glass melt {1} |
166 | .~.~.~ With pushing device to move material therealong |