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 235
Fig. 174 Fig. 175 feet or yards. Thus the side of an octagon iinch in diameter would be t? of an inch. A 6-in.diameter would be 6 x 5.12 = 30.12 or 2% inches, Fig. 175- Again, from 12 to 5 measures exactly 12inches, a- gain of 1 inch to 1 foot run of thecommon rafter. Therefore the run of an 232… … Fig. 176 Draw BA. Place the square as shown, anddraw line AC, and square down from B to C.AB is the run of the common rafter. AC is therun of the hip, and is tV longer than AB; BC isequal to one-half the length of the plate, and isA the length of AB. The whole figure bounded THE STEEL SQUARE 233 by…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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