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 304
centres for the boards at the base of the dome, they wouldoccur so distant as to make it impracticable : the following metl. odis preferable for this purpose. G being the last board obtained bythe above method, extend the curve of its inner edge until itmerts the axis, D B^in e ; from 3, through e,… … equal to e 4 in the previous figure, and c 5 equal to c 5 also in theprevious figure; then describe the inner edge of the board, H^according to Art. 87 : the outer edge can be obtained by gaugingfrom the inner edge. In like manner proceed to obtain the nextboard—taking p 5 for half the chord and p…
Carpentry · Architecture
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