Society of Glass Technology · [Sheffield] · leaf 604
w York, U.S.A., and L. N. Bruner, Locarno, Switzerland(Brit. Pat., No. 161192, April 6th, 1921. Convention date,April 6th, 1920. Not yet accepted).—To fine molten glass extraheat is supplied by passing an electric current through it, prefer-ably alternating current of 60 cycles or higher. The glass… … Fig. 149. glass. The lower portion of the chamber B is separated from theouter casing of the apparatus by flues extending behind shortpartitions, 14, and opening into the compartment C. Carbon orother electrodes, bolted or similarly secured to carriers, 18, projectinto the glass on each side of…
Glass
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