Society of Glass Technology · [Sheffield] · leaf 567
sing from thetank are led partlyto recuperators, H,in which the gasand air are heated,and partly by apipe, i, to a cham-ber, /, above themelting chamber, A,and beneath a cham-ber, J, in which theglass-making mate-rials are pre-heated.The materials arefed into the melting-chamber by a rotating cone,… … FUELS, REFRACTORIES, AND FURNACES. 137 245. Silica Transformation. Orazio Rebuffat [Giorn. Chim.Ind. App., 1920, 2, 437; from J. Chem. Soc., 1921, 120, Abs. ii,44).—The transformation of silica taking place at 1300—1350°from the quartzose form into that having the lower density 2-22—2*27 and…
Glass
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