fire-proof. A second is, that a very supe- must be obvious to every candid reader that neither fire can bor of one is not adequate to the purpose. The invention is rior wall to that formed by plastering on wooden lath is ob- consume, or rats penetrate, a wall of this construction. The simply a… … external heat, that only a fire of such intensity as to convert ing engravings. Fig. 1 is a sectional view of the upper and is equally applicable to all sort3 of bailed vessels, as pots, the timbers into charcoal, could weaken the main structure. under side of a fire-proof and rat-proof floor with…
Patents · Silk · Machine · Improved · Apparatus · Scientific American · Iron · Steam engine · Stationary steam · Years ago · Turbine water · Sufficient quantity · Street crossing · Locomotive boilers · Novelty iron · Railway car
Internet Archive · Public domain (published before 1931). Free to use for anything.
