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 42
erethe larger tool is unavailable, and may on emer-gency be employed for laying out rafters, bracesand similar work. A square that wasquite popular somesixteen or eighteenyears ago known as The CrenalatedSquare, an illustra-tion of which is shownin Fig. 20, is still pre-ferred by many work-men. The… … FlG. ed as 4» PRACTICAL USES OF cil may be inserted, then the square may bedrawn along the timber or board, with the bladeheld snug against the edge, as shown, and mor-tises or tenons can be laid out at will. Besides being crenalated, these squares haveall the advantages of other squares, and are…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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