Society of Glass Technology · [Sheffield] · leaf 562
Fig. 77. ILLUMINATION AND ILLUMINATING WARE. 117 tained in a semi-fluid state. Near the lower end of this tube areopenings, 60, with strengthening ribs, 61, between them on theoutside and plates, 62, between them on the inside to prevent thecharge from passing to the closed end of the tube. The… … is prevented from clogging the discharge openings by theflame from the burner, 63, which is directed on the tube. Thedischarged material falls into a tank, 67, containing water, thelevel of which is maintained by the outlet valves, 69, and inlet,70. The solution is agitated by a stirrer, 71.…
Glass
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