Society of Glass Technology · [Sheffield] · leaf 519
lat-form, which is pierced with a circular drawing opening, 7. Thesuspending rods, 23, of the blocks, 13, are screwed, and can be 3—2 36 JOURNAL, OF THE SOCIETY OF GLASS TECHNOLOGY. adjusted vertically by means of nuts, 25, the frame, 24, carryingthe rods being also adjustable vertically. Thus… … Fig. 8. to a spider, 34, float on the surface of the metal in the tank, andthe stem, 37, of the spider is connected to a shaft, 40, which canbe rotated. In use, after a cylinder is drawn and detached, theshaft, 40, is rotated to bring a fresh ring, and therefore a freshlyheated body of metal,…
Glass
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