Revision of the Niagara Railway Arch Bridge (1920)
Charles Evan Fowler · [New York] : American Society of Civil Engineers · leaf 53
rack before the toggle had been entirely slackedaway. The use of the toggle in 1918 for stress measurement indicated,from the bending of the heaviest wrenches at hand, that screws withmore threads per inch should be substituted the next year for actuallychanging the shims. The use of wood blocking… … -H o o (7) u o o X rm o Tl 70 o a TO c_ o ■z
Bridges
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
