Society of Glass Technology · [Sheffield] · leaf 529
Fig. 87. runway, w, surrounding the moulds, maintains the temperatureof the glass during the operation. G. D. 177. Making Sheet Glass. J. Ramsey, St. Helens, Lancashire(Brit. Pat. No. 151543, March 13th, 1920, No. 7515).—Relatesto apparatus for making sheet and plate glass. The molten metal … ^ .,„.,ZI, runs from a tank, a (Fig. 88), through a valve, c, to a pot, p,which is pivoted at d, and provided with a bridge, u, to retainimpurities. When the pot, p, is lowered by screws, i1, the valve, c,is automatically opened by a chain, e, connected at h to the pot, p.When the pot, p, is raised…
Glass
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