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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 137

An illustration from 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, leaf 137
ally shift the square sothat the pencil will move in the direction of D,always being careful to keep the inside of theblade and inside of the tongue in contact withthe pins or nails, E, D. After having describedthe arc from F to D reverse the direction, des-cribing the arc from F to E. Then turn… … THE STEEL SQUARE 135 propose submitting one here. With an accurateright angle drawn upon a board or otherwiseindicated, it is a comparatively simple matter tomeasure the square by it. Referring to Fig. 80 establish the center Aat any convenient point. Then with the com-passes set to 12 inches and…

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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