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 39
Fig. 25. and proceed as in Fig. 24. The closer thepoints 1, 2, 3, &c, are together, the moreaccurate and clearly defined will be thecurve, as at d. 29. Fig. 26 shows the parabolic curve. … Fig. 26. HAND-BOOK. 35 This is the form of the curve of the Gothicarch or groin. 30. To find the joints for splayed work,such as hqpjpers, trays, dhc.
Carpentry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.