Society of Glass Technology · [Sheffield] · leaf 727
oma,U.S.A. (U.S.A. Pat., No. 1435985, November 21st, 1922. FiledDecember 11th, 1920, No. 429842).—This glass cutter is designedfor severing glass cylinders, and consists of a high resistance wireattached to the ends of two fork-like arms which spring from ahandle of insulating material such as… … Fig. 221. MACHINERY FOR THE WORKING OF GLASS. 327 424. The Continuous Drawing and Severing of Sheet Glass.H. S. Campbell (U.S.A. Pat., No. 1367858, February 8th, 1921.Filed December 2i*rd, 1919, No. 346852).—Relates to apparatusfor drawing glass in a flat sheet and consists in providing meansfor…
Glass
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