Carpentry made easy, or, The science and art of framing, on a new and improved system : with specific instructions for building balloon frames, barn frames, mill frames, warehouses, church spires, etc., comprising also a system of bridge building, with bills, estimates of cost, and valuable tables ... (1857)
Bell, William E · Philadelphia : Howard Challen · leaf 172
l timbers, aarepresented in the Plate. A hill of timber and iron, which is here subjoined, will assist the me-chanic in framing a bridge of this kind more than any extended de-scription could do. (The small letters in the Plate refer to the bolts.) = 216 = 192 =5400 = 432 = 360 =1368 « = 264 • =… … Plate 35
Carpentry · Bridges
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
