Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 96
149. A line Ij in. long, touching the vertical plane, andat right angles to it, parallel with the horizontal plane and 1^ in.above it. Fig. 150. A line li in. long, touching the horizontal planeand at right angles to it, parallel with the vertical plane, and If in.rem it. Fig. 151. A line ij in.… … / ^ Fig. 151. Fig. 152. Projections of Lines. Fig. 153. Fig. 153. A line li in. long, parallel with the horizontal planeand 1 in. above it, touching the vertical plane, and making anangle of 30° with it. Fig. 154. A line 6 in. long, touching the intersection of bothplanes, making an angle of 30°…
Mechanical drawing
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