Society of Glass Technology · [Sheffield] · leaf 603
Fig. 148. tubes, B, containing fine wires, are packed into a glass tube, T,which is exhausted and then heated progressively in a rotaryfurnace, A, until the glass collapses and forms a solid blockembedding the wires. After cooling, the mass is cut into discsand the wires are removed chemically. H.…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
