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Scientific American, Vol. 41, No. 15 (1879) (1879)
leaf 7
idge designed to be used both as a walls for furnaces has been fire escape and a support for patented by Mr. John Mailer, fire hose. Themain frame is mounted of Pacheco, Cal. The inven- tor places a movable ‘bridge upon wheels and supports wall in a boiler furnace to two screws, E, and the lazy-… … FIRE ESCAPE LADDER. ment for domestic and other The truck carrying the © 1879 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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