Revision of the Niagara Railway Arch Bridge (1920)
Charles Evan Fowler · [New York] : American Society of Civil Engineers · leaf 74
nd required jacking up to level. No injurywas done the coating by walking over it, and it is notexpected that it will be affected by the 120° variation in temperaturefrom summer to winter. Cleaning it with a scraper would be injurious,and brushes are used, ordinarily, with frequent flushing by a… … Fig. 22.—Bending Machine for Copper-Steel Floor Plates.
Bridges
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
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