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 167
ngue and blade ofthe square respectively according to scale.Take the cut of t for the top or the foot of thebraces. The diagonal distance from t to b is thelength according to scale. For the cross cutsmark along b and extend the line thus made.Again, apply t and b to this line, and mark alongb,… … Fig. 124 other measurements of braces, and proportionatewhen applied to optional scale measurements byihe steel square. The letters t and b are usedbecause they are the initials of tongue andblade, and consequently suggestive. The prin-ciple is general, and applies to all similar crossbraces of…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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