Fireproof construction for houses and other buildings at moderate cost. (1909)
National Fire Proofing Co. (Chicago, Ill.) · The Company · leaf 80
89 236 199 126 89 58 30 13 450 313 238 193 163 101 70 45 21 14 376 261 197 160 134 80 56 35 14 15 317 218 164 132 110 65 43 26 9 16 269 184 137 110 91 48 33 19 5 17 229 155 115 92 75 41 25 14 18 195 131 96 76 62 31 18 9 19 167 111 81 63 51 oo 11 20 142 93 67 52 41 17 8 21 121 78 55 42 33 11 22 103… … Composition of Concrete: 1 Part Portland Cement—3 Parts Sand—5 Parts Stone or Gravel.Working Strength of Steel = 16,000 lbs, per square inch. Safe Live Load in Pounds per Square Foot—Factor of Safety = 4. Span inFeet 16-in. Tile IM-in.Dia. Rod Weight ofFloor 12-m. TileIK-in. Dia. Rod Weight of…
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