Lynde, Carleton John, b. 1872, Gilbert, A. C. (Alfred Carlton), 1884-1961, A.C. Gilbert Company · New Haven, CT : A.C. Gilbert Co. · leaf 46
2. = 3 FIG. 75MAKING A LARGE HOLE has worked thejoint back andforth until the glassis fairly uniform.It makes a strong,joint. Cut off the closedend and smooththe edge. Repeat with apiece of Xo. 4tube, 44 BOY ENGINEERING r, Experiment 54. To join tubes of different sizes. Take a piece of No. 4… … FIG. 77THREE-ARMED SIPHON attach a handle to one end, heat the No. 6 tube in the blowpipeflame about 1 inch from this end and draw it down to smaller size. Break the small part at a point where it is about the size of theNo. 4 tube. If the hole is too large, heat the edge until it is alittle too…
Glass blowing and working
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