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 164
which will an-swer to any of the above extents. ■^ PLATE XLL Fig. .;2 is a roof for the purlines to be framed in, and the common rafters to come fair withthe principals. Fig. J5 is a roof calculated for a greater extent than any of the foregoing roofs, and may•^well extend 50 or 60 feet. Here…
Carpentry
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