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 157
154 PRACTICAL USES OF MISCELLANEOUS RULES To make an ellipse for a three-foot opening, one foot high, drive a brad in a lath i foot from end, which gives height; another 18 inches from end, which gives one-half width; apply as illus- … Fig. no trated in Fig. no, reverse the square and it is completed. Fig. in. To make anoval, begin same as onellipse, swing around onthe one brad, which willmake a circle at thelarge end, and it isFig. in formed as illustrated. Fig. ii2. To bend a board for a circle, if the
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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