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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 112

An illustration from 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, leaf 112
hem-selves ; then there will be two ribs of each kind; take the small distances 1 e, 2 c?, from theplan at B, and put it to the bottom of the ribs D and E, from d to 2, and e to 1; then theranging may be drawn off by the other corresponding rib ; or with the trammel, as for example,at the rib E, by… … w 50 CRADLING TO NICHES. J^ote. The curve of the front rib is a semicircle, the same as the ground-plan, and theback ribs at C i) and E are likewise of the same sweep. The reason of this is easily conceived, the niche being part of a globe, the curvature mustbe every where the same, and…

Carpentry

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