Society of Glass Technology · [Sheffield] · leaf 610
ries and connected to electric conductors. Com-minuted silica is placed in a mould, 16, which is made of carbonand has suitably shaped core members, 21, also of carbon. A shortcarbon tube, 25, which forms part of the upper portion of the mould,receives a pyrometer, 26. The silica is firmly packed… … Fig. 11 166 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY.
Glass
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