ion just described applies exclu-sively to cast-iron beams, which, although somewhat analogous•to those constructed of malleable iron, are nevertheless different FIRE-rEOOF WAREHOUSES. 157 in form and in the mode of attachment to the beams. In castiron the rods or bars vary from three-fourths to… … into single gibs, with shoulders pulling against the beam on each side, and a key between, as represented at a b, fig. 59. The heads of the columns are fixed in the Fig. 59. same way, the rods running right through an oblong hole, and keyed vertically, or the reverse of those through the sides and…
Building, Iron and steel
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