f illumination, but the mounted, in groups of 20, on boards, which are placed After impregnation the mantles are passed through mantles, being mere gossamer tissues of ash, were ex- a wringing machine composed, essentially, of two roll- in large chambers heated to 122 deg. P., where they ceedingly… … Fig. 6.—Shaping machines. Fig. 4.—Capping machines. Fig. 6.—Incinerating machine. Fig. 3.—Reinforcing the mantles. Fig. 1.—Impregnating the mantles with collodion. Fig. 2.—Wringing the mantles to remove the excess Solution. THE MANUFACTURE OF INCANDESCENT GAS MANTLES. incandescent mantles, in order…
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