Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1916)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 75
out through thenarrow space made bythe thin side of thepattern g. To over-come this difficulty theboss a is made in thecore box I and the coreis.bedded in, as shownat I in Fig. 131. Referring to Fig.131, which is a sectionthrough the vertical center of the pattern, the molding process is asfollows:… … Fig. 130. Core Boxes for Fig. 127 PATTERN MAKING 61 h. The core for the lug a is next put into its proper location, shown atI, and the mold is rammed to the top of the rim pattern. The sandinside the rim pattern is struck off level, and the web e is placedin position and rammed down so as to fit…
Patternmaking
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