Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 49
dial linefrom A as A2 and make 1-2 = the radius of circle B. FromA with radius A-2 describe a circle C2D. From center B 34 MECHANICAL DRAWING. draw tangents BC and BD to circle C2D at the points C andD by preceding problem. Join AC and ^4Z? and throughthe points E and F draw parallels FG and EH to…