Society of Glass Technology · [Sheffield] · leaf 725
tegral sleeves, 112, 113, which arevertically adjustable on posts, 110, 111. Revolvable tables, 125,126, serve as trays for the articles. H. G. C. 419. Glass Cylinder Drawing. H. F. Clark, Oakmont, Pa.,U.S.A., Assignor to the Empire Machine Co., Pittsburg, Pa.,U.S.A. (Brit. Pat., No. 181308,… … Fig 217. the glass more on one side of the cylinder than on the other in orderto secure cylinders of uniform thickness. In the construction shown, the cylinder is surrounded by ahollow water-cooled ring, 2, the ends ofwhich are in planes inclined to oneanother. The greatest depth of thering is…
Glass
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