Society of Glass Technology · [Sheffield] · leaf 467
um compounds. 3. Separation of other elements by precipitation are avoided. Hence there is no loss of potassium by adsorption, formationof double salts, etc. 3 * 36 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. 4. Under the conditions outlined above the potassium compoundis the most insoluble of any… … IX.—Machinery for the Working of Glass. 63. Glass-blowing Device. A. R. Hunter, Connecticut,U.S.A. (Brit. Pat., February 13th, 1919, No. 142929. ProvisionalNo. 3564).—Relates to a method of preventing the formation of too hard a skin on parisons owingto the chilling action of the parisonmould and…
Glass
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