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 105
y be used for this work. Cherryand mahogany, because of their freedom from warping. 102 Model Engineering shrinking and s^velling, and because of the fine finish theyare capable of taking, are considered about the best forregular commercial patterns, but they are rather expen-sive, and cheaper… … 63A Fig. 63B Fig. 63A—(Lower). A pattern partly covered with sandFig. 63B—(Lower). Drag completely filled and smoothedFig. 63c;—(Ahove). Cope in position filled with sand which a casting is produced at the foundry, and thereaders attention is called to the series of photographsrepresenting the…
Machinery
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