The theory and practice of modern framed structures : designed for the use of schools, and for engineers in professional practice (1897)
Johnson, J. B. (John Butler), 1850-1902, Bryan, C. W. (Charles Walter), 1863-1927, Turneaure, Frederick Eugene, 1886- · New York : J. Wiley & Sons · leaf 394
Drillfd 18iron Channel 43long X Web. ^ 4- U ^85—V a 12lrou Channel 30long 5^web. S«» e y 10,13 4 ISS T«l-k. UUw fur d;».orHol«. -—--^ 34- 10lron Channel 34long x vVeb. . 124^ . .f, .,, r. 1. „ All contacts of wood and wood to be tliorouj^hly paintedwith white lead. All bolts ^diameter except as… … THE DESIGN OF SWING BRIDGES. 357 CHAPTER XXIV. THE DESIGN OF SWING BRIDGES. 368. Different Types of Swing Bridges and Determining Conditions.—Swingbridges are known generally as Centre-bearing and Rim-bearing, according to the manner inwhich the bridge, when swinging, is carried at the centre pier.…
