Society of Glass Technology · [Sheffield] · leaf 576
luble meta-stannic acid removed by filtration. Zirconiumand titanium oxides were separated by treating the neutralisedfiltrates with hydrogen peroxide to precipitate the zirconium andthen with excess of ammonia to precipitate the titanium. C. M. M. MACHINERY FOR THE WORKING OF GLASS. 145… … Fig. 121a. plan and in sectional elevation, is an automatic bottle-makingmachine, and the invention also comprises an automatic feed inwhich the metal is delivered upwards by gravity into the parisonmould. 33 /31
Glass
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