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 21
ing the angle forthe treads and the other for the risers. This is called a pitch-square, being especiallydesigned for laying out roofs. The Topps Fram-ing Tool, Fig. 6, isanother very curiousand very ingenioussquare, and is intend-ed as a sort of ready- Fig. 6. Topps Framing Square , ,, reckoner,… … INTRODUCTION 19 A. Topp, of Indianapolis, to be a great timesaver, as no figuring is required for finding thelengths or bevels of rafters, and it enables theordinary workman to frame roofs speedily andwith absolute certainty. I have examined thistool and found it to be just as represented. Another…
Carpenters' squares · Architecture, Domestic · Equerre de charpentier
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