Society of Glass Technology · [Sheffield] · leaf 507
d so as to coalesce with the nucleus. Fig. 3 shows oneend of the appar-atus used. Thetubular or solidnucleus, A, is heldin chucks, B, androtated by thegearing shown. Itis heated, mean-while, by a blow-pipe, C, until it isplastic, when theblowpipe, G, isautomatically with-drawn and a plate,D,… … Fig. 3. DECORATED GLASS. 25 chucks, B, are separated slowly, so as to draw out the articleand keep the diameter uniform. In the case of a tubular article,the walls are supported by internal air pressure produced by apiston inside the tubular shaft, 55. The diameter may be variedby varying the rate…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-437-309.webp)
