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 100
please, suppose nine, from E, and theheights corresponding to them, which lay down a.tF, draw the plan of the angles as in theother groins, and take the stretch round the middle of the steps at E, and lay it from a to 6 atF; make de perpendicular to dc B.t B, equal to (/e at F, draw the hypothenuse… … rh</^ \7.
Carpentry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
