support thecore properly in place, so that the sand of the mold willnot be crushed out of shape by the weight of the core,nor by the action of the metal while being poured intothe mold. Core prints should be given more taper than thepattern itself, so that the work of withdrawing the patternfrom… … Fig. 10. five times their diameter, or of such as may be stood onend while drying, a full box may be constructed and thecores made whole. This, of course, saves the time ofthe core-maker, as he does not have to cement the twohalves together. A core made in this way, with its box,or mold, is…
Patternmaking
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