Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 62
the curve exactly fits the straightlines, which is of course what the draughtsman should aim at. A more advanced example, such as would occur in fitting acurve between the arm and boss of wheel, is shown at Fig. 96 DRAWING CIRCULAR LINES, 59 Let a be the centre of the wheel, a h the radius of the… … / / 7,J l /I/ • Fig. 96. —Curves Joining Arms and Boss of Wheel. the straight line, draw short arcs as shown at f g, h i. Thendraw a straight line tangent to the two arcs from the line, andwith the compasses a concentric arc tangent to the two smallarcs from the curve. Where this new line and curve…
Mechanical drawing
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