Lynde, Carleton John, b. 1872, Gilbert, A. C. (Alfred Carlton), 1884-1961, A.C. Gilbert Company · New Haven, CT : A.C. Gilbert Co. · leaf 44
42 BOY ENGINEERING … FIG. 72JOINING TWO TUBES pieces as follows: Hold theends opposite each other nearthe top of the lamp flame (Fig.72),. rotate constantly, andwhen nearly red hot bring theends accurately together in theflame, press together slightly,draw out slightly, and removefrom the flame. The ends are now…
Glass blowing and working
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