Society of Glass Technology · [Sheffield] · leaf 516
is provided with ahole, 11, and the vessel, 7, j/fhas a constricted neck, 13, ./3of 08 mm. diameter. Mer-cury normally occupies thetube to the level, 14; onmaking the current, thegas in tube 8 is heated by the wire, 12, and forces the mercury into the vessel, 7,the arc being struck as soon as the… … Fig. 5. VII.—Fuels, Refractories, and Furnaces. 40. Refractory Substances. H. E. Mason and A. Couper,Horwich, Lancashire. (Brit. Pat. No. 119101.) (September27th, 1917, No. 13906).—Relates to the manufacture of refractorymagnesite bricks. H. G-. C. 41. Alumina for Refractories. Norton Co.,…
Glass
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