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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 200

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 200
as at A, and a linefrom this to 12 on the tongue passes at 7-rV incheson the blade, because the common rafter having THE STEEL SQUARE i97 a rise of 10 inches to one foot, for one inch itwould have -ft of an inch, while the hip wouldonly have It of an inch toone inch and for 12 inches itwould be 12… … Fig. 147 fractions not given on the square—and for thatreason 17 is generally used for a foot run forthe hips and valleys. AN UNEQUAL PITCH In the matter of roofing over unequal pitcheswhen there is no ridge and when all hips meet, 198 PRACTICAL USES OF the building being longer than it is wide,…

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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