Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 145
Fig. 273. When the cutting plane, ab, Fig. 274, is parallelto the line cd, then the figure produced in sectionis a curve known as the parabola. Such a curve isshown in Fig. 275. … Fia. 275.
Mechanical drawing · Machine design
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