Lynde, Carleton John, b. 1872, Gilbert, A. C. (Alfred Carlton), 1884-1961, A.C. Gilbert Company · New Haven, CT : A.C. Gilbert Co. · leaf 17
the pear-shaped bulb over a pit, and blows a long cylinder(see left of Fig. 1). The ends of the cylinder are now cut off and the edges aresmeared with molten glass to prevent splitting (see right,Fig. 21). The cylinder is next cut lengthwise with a diamond GLASS BLOWING 15 (center, Fig. 21), and is… … FIG. 23BOTTLES BLOWN IN A MOLD 16 BOY ENGINEERING GLASS TUBES The glass tubes with which you do the experiments in this bookare made in the same way as window glass up to the stage ofblowing the cylinder; then the blowers helper attaches an iron
Glass blowing and working
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