Society of Glass Technology · [Sheffield] · leaf 585
Fig. 128. 154 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. … Fig. 129. the inner members of vacuum flasks, and then melting and flangingthe necks. The machine consists of a number of horizontal armsradiating from, and rotating step by step about a vertical shaft,each arm being furnished with a holder in which the vessel is heldby suction. The vessel is first…
Glass
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