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 146
Fig. 19.3. Another reason why the pattern for pipe elbows should be made,double is that otherwise the core prints would require to be made of Igreat length in order to balance, sustain, and keep the hea\7 core 133 … UNIVERSAL SAW TABLE. Coburn Machine Tool Co. PATTERN MAKING 111 in iK)sitioii; the tendency being to sag in the middle, or float onthe molten iron, and thus make the uj^per side of the casting toothin, all of which is avoided in the double pattern.
Mechanical engineering -- Dictionaries
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