Society of Glass Technology · [Sheffield] · leaf 463
gh a mandrel. In drawing a solid rod, the end of themandrel is closed by an imperforate tip. In a modification.Fig. 31, the mandrel is surrounded by a conical casing 43, whichis partially filled with molten glass, the thickness of the glass filmbeing regulated by the size of the outlet. In a… … Fig. 30.
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
