Society of Glass Technology · [Sheffield] · leaf 481
, 28, is held down bya lug on a shaft, 39, turned by ahand wheel, 41, so that the motordrives the fan to supply air todistend the cap of the cylinder.When the cylinder is of the desireddiameter, the rod, 28, is freed andacts automatically. Thus if thepressure in the cylinder is too high,the piston,… … 84. Improved Method of Drawing Glass Cylinders.H. J. Walker (Assignor to Consolidated Machine Co., Bradford,Pa.) (U.S.A. Pat., January 27th, 1920, No. 1329065. Filed March19th, 1919, No. 283526).—In apparatus for drawing cylinders inwhich the bait is flexibly suspended, guides are arranged abovethe…
Glass
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