The carpenter's and joiner's hand-book: containing a complete treatise on framing hip and valley roofs. Together with much valuable instruction for all mechanics and amateurs, useful rules, tables, etc. ... Illustrated by thirty-seven engravings (1863)
Holly, H. W. (Henry Wells) · Norwich, Conn., Published by H. W. Holly · leaf 37
&c, and you have an exact hexagon. Joinb, d, and/, and you have an equilateral tri-angle ; join d, e, and the centre, and youhave another triangle, just one-sixth of thehexagon described. 26. To describe a citrve by a set triangle. … <^ Let a b (Fig. 23) be the length, and c dthe height of the curve desired; drive two HAND-BOOK. 33 pins or awls at e and e / take two strips s s,tack them together at d, bring the edges outto the pins at e; tack on the brace f, tokeep them in place; hold a pencil at thepoint d ; then move the…
Carpentry
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