Fry, Horace Pugh. [from old catalog] · Philadelphia [The John C. Winston co.] · leaf 34
rojectedon the vertical plane, determine 8^ and 9^ which are points onthe lines of intersections J and J^ 7. Fig. 23 shows a pipe elbow with its center at O, intersectedby an offset cylindrical outlet. In this case points in the Hne ofintersection I are found by passing planes containing elements… … Fig. 23. This arc is found by projecting the point b^ to the center Hne at bthus determining a point in the plane through which to draw an arcwith O as its center. The element 2 lies in the plane of this arc andintersects it at V which is a point on the line of intersection Wy.The point V projected…
Mechanical drawing
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