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 227
166. Thetop bevel of the jack rafter is at I, while G givesthe face bevel for sheeting. Eight, and 14^2inches taken on the square in the same manner,marking out 8 inches, gives the edge bevel ofthe sheeting. The top bevel of hip and valleyrafters is obtained in the same manner as forjack rafters,… … Fig. 168 roof or rafter taken in any proportion on thetongue and blade of a square, and applied asshown by GHI of Fig. 168, will give the topbevel of hip, valley and jack rafter, as also thebevel of the hip and valley shingles and formitering a raking frieze. In laying out forcutting miters on…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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