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 108
AMEEICAlf HOUSE-CAEPENTER. 95 … Fig. 123. at Fig. 123. The several centres in rotation are at the anglesformed bj the heavy lines, as figured, 1, 2, 3, 4, 5, 6, &c. Theposition of these angles is determined by commencing at thepoint, 1, and making each heavy line one part less in lengththan the preceding one. ]^o. 1 is the…
Carpentry · Architecture
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