Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 58
rument be used on eachside of a center line. The regularity of the curve drawn andthe degree of symmetry will depend upon the accuracy withwhich the irregular curve is located in corresponding positionson opposite sides of the center line. One method of locatingthe irregular curve is by making… … Fig. 19. Irregular Curves used for drawing Curved Lines other than Circles or Arcs of drawing a symmetrical figure which requires a right-handand a left-hand curve on each side of a center line, is illus-trated in Fig. 20. As can be seen, there is a hole about j$ inch in diameter ineach end of the…
Mechanical drawing
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