Kenison, Ervin, Gardner, Harry W, Lawrence, William Henry, 1868-, Everett, Herbert E. (Herbert Edward), 1863-1932, Gregg, D. A. (David A.), Von Holst, H. V. (Hermann Valentin), 1874-1955, Brown, Frank Chouteau, 1876-1947, Griffin, Charles Lewis, 1867-, Neubecker, William, 1864-, Zapf, Alfred E, American School (Lansing, Ill.) · Chicago, Ill. : [American School of Correspondence] · leaf 568
TIN SMITHING 14 from lv set off the stretchout of 1-2-3-4-1 in plan, as shown by 1v_2v-3v-4v-1v on the arc lv-lv (1V-2V being equal to 1-2, etc.), and from these points draw lines to the apex A and con- nect points by straight lines as shown from lv to 2V, 2V to 3V, 3V to 4V and 4V to lv. Then Alv… … DE, which represents respectively the points 31 — 41 and l1-21, draw at right angles to the center line, the lines D - D" and E-l", intersecting the true length Alv at D" and 1". Using A as center and radii equal to A-D" and A - 1" intersect similarly numbered radial lines in the development.…
Mechanical drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
