Fig. 9 illustrates the iron arch, dis-pensing with the use of bricks at thehaunches thereof, as it is not necessary to use them when the corrugated ironplates are filled in with concrete to thesurface of the beams. Fig. 10. … 1868.] Gilberts Patent Iron Ceiling. 65 Fig. 10. Cells for jails or other pur-poses, for which these corrugated iron-arched plates are particularly adapted.The cut shows two cells, a single anddouble arch; the upper cell showing thesingle arch resting on the walls of thecells, and lower cell the…
Architecture
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