A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 99
Fig:. 98 96 A PRACTICAL COURSE IN dimensions. Construction: Obtain the projectionsand sectional view as in Problem i. To obtain thedevelopment it is necessary to know the slant heightof the pyramid. The exterior edges are parallel to thevertical plane; therefore, their true lengths must beseen at… … Fig. 100 describe an arc. Lay off the perimeter of the base onthis arc and join all points with radial lines to thecenter of the arc C. Step off the true length of eachcut element, o, i, 2, 3, shown projected on AC; thenjoin as in Fig. 96. To complete the pattern add thesection and the base.…
Mechanical drawing
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![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-119-40.webp)
