Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 59
pleasure, as F L R, cutting, the figure in the points F L ; draw theright line F L, bisect it in I, and through the points I K draw the greatest diameterA C, and through the centre K draw the least diameter B D, parallel to the line FL. To draw a Spiral Line about a given Point—fig. 13. Let B be… … 52 GEOMETRY. Upon a given line, to describe any Polygon beyond a Pentagon—Jig. 14. Let A B be the g-iven line. ^ ^ ^ Rule,—Bisect the line A B in Q, and erect the perpendicular Q P. From thepoint A describe the arc B H, and from B the arc A H, and divide B H into equalparts, as H 1, 2, 3, 4, 5, B.…
Engineering · Mechanical engineering
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