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 292
ojectionfrom 2 to 2, at the top, ought to be equal to 1 1 at the bottom; but it is much greater; there-fore this method is false, and they will not mitre together. I shall also notice another method used by some authors, see figure B, at E and Ef wherethey are pricked perpendicular to their chords,… … F/i/. C FLitfS^. ^1 ^ ^ <1^ V —^«- V \ I4I
Carpentry
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