Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 63
he exact centre for the curve of 1^ in. radius to 60 PRACTICAL DRAUGHTSMENS WORK, .join the arm and the boss. It is important to note that the exactpoint of meeting of the two curves will be at c in the line aj^joining their centres ; and of the curve and straight line at k^where a perpendicular… … Fig. 97.—Example Eequiring Accurate Drawing. The study of practical geometry forms a very good ground-work for a draughtsman, and in machine drawing is quite indis-pensable ; but for architectural drawing there is a great deal thatmay be omitted. One of the advantages pertaining to it is thatit…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
