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 31
Let a o (Fig. 15) be the length of aside of the proposed square ; upon a and b,with the whole length for the radius, sweepthe parts of circles a d and b c. Find halfthe distance from a to e at f / then upon efor a centre sweep the circle cutting f Drawthe lines from a and b, through where… … Fig. 16. Upon two points nearly opposite eachother, as a b (Fig. 16), draw the two partsof circles, cutting each other at c cl / repeatthe same at the points e f ; draw the twostraight lines intersecting at g, which willbe the centre required. HAND-BOOK. 20. Another method. 27
Carpentry
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