. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. an be made to 6 feet diameter; these, having a central concrete filling and outerring of bricks in cement, can be designed to sustain a load up to 2,000 tons. The3 jiremade from 13 inches to 48 inches in diameter, and are stated to be not more expensivethan cast iron columns, and far superior. Cast iron columns and stanchions were pre-ferred both for economy and stiffness, as -was also that material for c/irders, beams, joists,and bressum)n£rs, unti
. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. an be made to 6 feet diameter; these, having a central concrete filling and outerring of bricks in cement, can be designed to sustain a load up to 2,000 tons. The3 jiremade from 13 inches to 48 inches in diameter, and are stated to be not more expensivethan cast iron columns, and far superior. Cast iron columns and stanchions were pre-ferred both for economy and stiffness, as -was also that material for c/irders, beams, joists,and bressum)n£rs, until the introduction ol plate iron and rolled iron (all which have beentreated in previous sections). Iron columns can be rcadn-ed Jire]>roof by encasing themwitli fireclay blocks, grooved and secured by iron plates with claws, which fit on the rivetheads. For round columns a metal band is brought round the column, hooked tojether,and dropped into the groove of the blocks. In tither case a heaA-y bed of mortar is nextappl cd, and theu another course of bkcks is bedded over the band or plate. Then it is If H W y»>BKY fimAialvitSi Ksme^. ?POTS. Tis s£ ain AeaBE^£arai^ .11 wipiij J
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Keywords: ., bookcentury1800, booksubjectarchitects, booksubjectarchitecture
