Society of Glass Technology · [Sheffield] · leaf 474
theaction of an oscil-lating impeller.According to thepresent invention,the discharge takesplace through anorifice, 3, which issubmerged duringoperation, and theweight and shapeof the charges are controlled by the variations in depth of the … Fig. 30. 44 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. molten metal above the orifice, 3, caused by the movement of theimpeller, 4. A vertically reciprocating plunger or secondary im-peller, 5, may be employed to assist in controlling the discharge.The operating mechanism, shears, cooling…
Glass
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