The American house carpenter: a treatise upon architecture, cornices and mouldings, framing, doors, windows and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 192
entres for the boards at the base of the dome, they wouldoccur so distant as to make it impracticable : the following methodis preferable for this purpose. G being the last board obtained bythe above method, extend the curve of its inner edge until itmeets the axis, D B, in e ; from 3, through e,… … equal to c 4 in the preyious figure, and c s 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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