Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 180
icalabsolutely unexceptionable for the effects intended, it yetremains a fact that the time factor alone would render thewhole system impracticable for universal use. On thispoint, it is sufficient to say that the old method demandsfrom twenty-five to thirty-five hours to produce… … FiG. 4.—Cylinder used in new process, showing internally seated end-gate. sure, the impossibility of any practical solution of theproblem must be obvious at a glance. For, no matter howperfect the fireproofing effect, how permanent, how benefi-cent to the wood treated, if the total cost is…
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