and are suspendedon T-shaped vertical castings placed lO1^ inches apart. The main arch does not reston the side construction, but is suspended from beams supported on the side plates.A seal is made between the main arch and the side wall. The sides can be repairedwithout removing main arch tile.… … Page Twenty-eight DETRICR 111
Building materials · Masonry · Refractory masonry · Flat arch
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