Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 92
them with a line parallel to C-B at therequired distance; cut out along the heavy line outline (otherlines being construction lines), fold up, and paste or pin the lap;that is, securely fasten the ends with C-B and C-B coincident,and the shade is finished. 84. First and Third Quadrant… … El, 3dFig. 29. 1st Quadrant ~i_i—U Plan LT Fig. 30. Referring to Figs. 29 to 32, inclusive, Fig. 29 illustrates the firstquadrant projection of an object, Fig. 30 representing the con-ventional projection. It will be noted that in this drawing theplan is below the elevation. Now assume the object…
Mechanical drawing
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