Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 43
of the channel pieces. PLATES. Plates I, II and III are provided to give practice in the useof the drawing iustruiuents. Drawing paper at least 11 inches by15 inches should be used to allow border lines 10 inches by 14inches. First, draw carefully in pencil and then ink in. Especialcare sboild be… … r <-)> z o a. L -f UL- ax —
Mechanical engineering
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