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 83
Pig. 113. … Fig. 114. sand to keep it from rolling, and the drag is inverted over it asbefore. When the drag has been rammed up, it is turned over,and will then present the appearance shown in Fig. 113, the entire pattern being embedded in thesand. The sand is now cut awayand removed, as shown in Fig. 114,down…
Mechanical engineering -- Dictionaries
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