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 135
holes bored in the pattern, or tliey maybe turned flat on both endsand nailed on. Core prints x and x must have no more draft thanis given to the body of the pattern {\ inch to 12 inches); but z and2, which will be moulded in the cope, must be \ inch less in diame-ter at the upper end than the…
Mechanical engineering -- Dictionaries
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