Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 61
er the why and the wherefore, and to see beauty only inthat which was strictly adapted to strength or economy, theysaw that this curve was even worse than a plain angle, for it givestwo sharp edges to damage and be damaged, and a groove to holdthe dirt. A rounded angle (Fig. 95), whether internal… … Fig. 95.—^IModem Angle of Castings Internal and External. the most important curve a beginner can have; though difficultto draw well if the centre has to be guessed at, it presents nodifficulty and takes less time if the right method be followed.First decide upon the radius, say 2 in.; set the…
Mechanical drawing
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