A practical treatise on the steel square and its application to everyday use : being an exhaustive collection of steel square problems and solutions, "old and new", with many original and useful additions, forming a complete encyclopedia of steel square knowledge, together with a brief history of the square, and description of tables, keys and other aids and attachments (1903)
Hodgson, Fred. T. (Frederick Thomas), 1836-1919 · Riverside, Ill. : Radford Architectural Co. · leaf 225
of hip and valley rafterschange the measure on the blade of the squarefrom 12 to 17 inches, as shown by ABD in Fig.166, and take this measure the same number oftimes as for common rafters. The down bevelfor top of rafter is at A, and for heel is at D.Take the measure of the hip rafter to the… … Fig. 167 stood by examining JK of Fig. 167, of thediagrams. The plumb-line CF, Fig. 166, standsplumb over the face of plate and must be thesame length in hip and valley rafters as incommon rafters. This makes the projecting THE STEEL SQUARE 223 part of hip and valley rafters wider than ofcommon…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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