The American house-carpenter : a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs : together with the most important principles of practical geometry (1849)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 208
18^ FRAMING. 6 … Fig. 233, additional security. Upon this plan, with some variation to suit circumstances, centres may be constructed for any span usual in stone-bridge building. 324. — In bridge centres, the principal timbers should abut, and not be intercepted by a suspension or radial piece betAveen. These…
Carpentry · Architecture · Building
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
