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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 25

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 25
mean Proportion. < Join a b and b c in one straight line, divide a c into two equal parts at the point o, with theradius 0 a or o c describe a semicircle, and erect the perpendicular b d, then is a b to bd a.sb dis to 6 c. Fig. 10. Through any three Points to describe the Circumference of a… … PRACTICAL GEOMETRY. 15 To find the length of any Arc A B C ©/a Circle, Draw the chord Ji C and produce it to E; bisect the arc AB C inB, aud make A Dequal to twice A B ; divide C B into three equal parts, and set one out to jE ; then AEis thelength of the arc. PLATE IV. Fig. 1. Three Lines being…

Carpentry

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More pictures 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

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