Society of Glass Technology · [Sheffield] · leaf 655
and the clear glass, thus developing areflecting opaque covering over a certain portion of the bulb. Froma single glass tube a number of bulbs may be blown by painting theenamel paste along the tube at short intervals. S. E. 254 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. 297. Drawing Glass Tubing… … Fig. 173. tinuously from a supply of the molten metal. According to theinvention, the molten metal flows from a tank, 1, into an inclinedrotating cylindrical chamber, C, which may be heated electricallyor otherwise. It is drawn from the lower end, either by hand ormechanically, in the form of a…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.