Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 371
iSioe, MELAN, BRIDGE.—A series of arched steelI beams, filled in with Portland cement concrete. Endsof beams resting against thrust plates. … iSiof. STEEL ARCHED CONCRETE BRIDGE, Thatchertype.—The concrete rib of the arch is reinforced by steel barson the inner and outer edge of the concrete rib. CONSTRUCTION AND DEVICES. 361
Mechanical movements
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