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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 140

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 140
various kinds of workthat carpenters require a right angle, the armsof which are very much longer than the squareswith which their tool chests are provided. Forexample, they may want for a certain purpose aright-angled template, the arms of which are 6 to8 feet in length. In building such a… … 138 PRACTICAL USES OF determining the dimensions of the largest rectan-gle that can be drawn in a given circle. A practi-cal application of the rule is to determine thedimensions of the largest timber other than squarethat could be cut from a given log. Throughthe center A of the circle draw any…

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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