The carpenter's new guide: being a complete book of lines for carpentry and joinery. Treating fully on practical geometry, soffits, brick and plaster groins ... with a great variety of designs for roofs, trussed girders ... with many other things entirely new: the whole founded on true geometrical principles; the theory and practice well explained and fully exemplified on eighty-four copper-plates; including some observations and calculations on the strength of timber (1830)
Nicholson, Peter, 1765-1844 · Philadelphia, J. Grigg · leaf 136
ds on the Top. Fig. A. Divide round the circumference of the dome into equal parts at 1, 2, 3, 4, 5, 6, &c. eachdivision to the width of a board, making proper allowance for the camber of each board;draw a line through the points 1, 2, to meet the axis of the dome at a?; on x, as a centre,with… … ^^.^
Carpentry
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