Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 123
is easier to make than the kindshoA\Ti in Fig. 66A, the amateur is advised to allow theuse of the standard cores at the foundry whenever pos-sible. 120 Model Engineering Photographs 66A and 67B illustrate the mouldingof a typical parted pattern with horizontal cylindrical•core prints. The complete… … Fig. 85—Plan- and end view of half core box cope has been lifted, the half pattern with it, turnedover and the pattern draA^Ti. Xote that the core printson this piece have left two semi-cylindrical depressionsin the sand. At 67B the other half of the pattern h-as beenremoved •also, leaving a half…
Machinery
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