The Effect of Cullet on the Melting and Working Properties of Potash–Lead Oxide–Silica Glasses
JSGT 1929 V13 T037-T047
In the case of potash–lead oxide–silica glasses, with which the present report deals, the question of the influence of the cullet added is still more important in glassmaking practice in the sense that a much larger proportion is used than is customary in melting the soda–lime–silica glasses.
S. English, G. A. Green, F. W. Hodkin & W. E. S. Turner