Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 107
meets the center line E D at e, which 83 24 SHEET-METAL WORK is the center for striking the blank for number 3, using the radiie h and e C. In similar manner draw a line from h to 6, extendingit until it meets E D at f7. Then d c and d 1) will be the radii forblank number 2, while A c is the radius… … PLAN Fig. 17. thoroughly in the Practical Worksho^j Problems which willshortly follow. In Fig. 17 is shown another elevation of a sphere composed oftwelve vertical sections as shown in plan view. While the methodused for obtaining the pattern is by means of parallel lines, andwould be strictly…
Architecture · Building · Carpentry
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