The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 17
has objections which overbalance that consideration. 6.—A T-square of mahogany, at once simple in its construc-tion, and affording all necessary service, may be thus made.Ijet the stock or handle be seven inches long, two and a quarterinches wide, and three-eighths of an inch thick: the… … Pig. 1. INTRODUCTION. B 7.—The set-square is in the form of a right-angled triangle ;and. is commonly made of mahogany, one-eighth of an inch inthickness. The size that is most convenient for general use, issix inches and three inches respectively for the sides which con ■tain the right angle;…
Carpentry · Architecture
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