Sauzay, A. (Alexandre), 1804-1870 · London, S. Low, son, and Marston · leaf 247
ig. 49, No. i), attaches a ponty to it, and cuts the neck of the spheroid near the end of the pipe (No. 2). The opening of this neck is then enlarged by means of a flat instrument which an assistant introduces into the orifice and rests against the sides, whilst the workman turns round the whole… … 3 2 Fig. 49. — MANUFACTURE OF CROWN GLASS. the bell increases in size, and becomes so flat as to resemble a round table, being of almost uniform thickness except at the centre. When the operation is finished the workman carries the sheet of glass, still turning it, to a flat space in the midst of…
Glass manufacture · Glassware
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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