Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 151
Fig. 221.—Irregular Outline tobe Copied. Fig. 222.—]\Iethod of Copyingan Irregular Outline. chord a & in the compasses, and from a on the new drawing cutthe arc at b, and draw A h prolonged, cutting it off at B to therequired length. If it were desired to copy the drawing totwice the scale, the…
Mechanical drawing
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