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 228
e to mark thepurlin as near fullsize as possible, to insure the bevels being accu-rate. A quick way of finding purlin lines by thesquare is given herewith: for the top and downbevels of purlins in a roof whk:h rise 16 inchesin 12 inches run use the following figures: Forthe side bevels take 16… … Fig. 169 226 PRACTICAL USES OF will give the required bevel. The bevels for 8-inch rise and 12-inch run are as follows: Forthe top side take 12 inches on the tongue and14^6 inches on the blade of the square and thetongue- will give the required bevel. For iheside bevel take 8 inches on the tongue…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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