Society of Glass Technology · [Sheffield] · leaf 540
Splitting GlassCylinders. John Murphy(U.S.A. Pat., June 17th, 1919, No.1307209. Filed May 10th, 1918.No. 233687).—A stand for support-ing cylinders during splitting con-:sists of side members, 2 (Fig. 39),connected by strips, 3, of flexiblematerial which carry the cylinder,and anti-friction… … Fig. 39. 70. Perforating Glass. British Thomson-Houston Co.,London (General Electric Co., Schenectady, New York, U.S.A.)(Brit. Pat, No. 119589.) (January 4th, 1918, No. 238).—Glasswhilst in a plastic condition is perforated by pressing through itone or more pins made of a metal which is not wetted…
Glass
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