Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 65
Fig. 64. The radius with which the arcs are struck beingequal to the span of the arch, and the centersbeing the imposts; and thus, the crown and theimposts being united, an equilateral triangle isformed. During the time that the Gothic archwas mostly used the Ogee arch (Fig. 65) was…
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
