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 161
tl -----1 -v-4 … TX! .1 rJiiluiT>;iSoil.Ii PLATE 81. This bridge is more expensive and more durable than those beforerepresented, as it is also less liable to the objections mentioned con-cerning them. The counter braces of this bridge are sufficient to pre-vent injurious effects from vibrations; and the size of…
Carpentry · Bridges
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.