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 316
horizontally. The gate proper is cutin the drag, but a good feeding head is cut out ofthe cope .side to keep the metal in the riser liquiduntil the casting has solidified. For duplicating work the sand match, oilmatch, or follow board are used, the same as foriron work. Fig. 129 shows a typical set… … Pig. 129. Duplicate Gated Work. 279 126 FOUNDRY WORK give a smoother surface on the small cores about one third moldingsand is often mixed in with the beach sand of the stock mixture. CLEANING When the castings are taken from the sand they should be rappedsmartly to free all loose san.l, then, if…
Mechanical engineering -- Dictionaries
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