Society of Glass Technology · [Sheffield] · leaf 439
. 1390614, September 13th, 1921. FiledJune 15th, 1920, No. 389191).—Relates to a tank furnace describedand illustrated in U.S.A. Patent No. 792705 in which the sidewalls consist of water chambers, 3, with a wood facing. Accordingto the present invention, in order to give further protection to… … Fig. 14. formed of metal plates riveted together and braced by angle-bars, 4,water being admitted through the open top of the chamber frompipes, 15. The inner plates, 7, are preferably formed with lowerportions, 8, vertical and upper portions, 9, inclined as shown,the top plates being bent to form…
Glass
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