Society of Glass Technology · [Sheffield] · leaf 662
e done by inserting the projecting end of the electrodein the gauze of a gas burner, 29, and moving the plug to work thesoftened glass away from the electrode. The heating of the tipof the core also fire polishes the glass at that point. The excessglass, X, left by the pressing operation, is… … Fig. 138. of finishing glassware, particularly for flanging and lipping beakers,consists in heating the portion of the article to be finished androtating the article at such a velocity that the heated portion isforced by centrifugal force to conform to the shape of a former.As shown in Fig. 138,…
Glass
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