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 162
s, it can be done asfollows: Draw the asquare, ABDC, Fig.118, and lay off CFto the same pitch asthe roof. From Cas center, with CFas radius, describethe arc FE. Con-nect A and E. Then Fig.hswill the bevel at A be the cut across the top ofbox, and the bevel at F for side of box. Thedotted lines of… … i6o PRACTICAL USES OF that if 12 and 12 on the square, when laid downon a line, make an angle of 45° on the lines ofeither blade or tongue, why 6 and12, when laid down on the sameline, do not make a miter for anoctagon. The reason why 12and 6 will not give the cut foran octagon (200 30), when 12and…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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