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 150
ugs shouldbe added to the upper part of the core box to align the two partswhile ramming the core, as showrnat b, Figs. 233 and 234. Thelower part of this core box, asshown, is to have projections caston at a so that this half can beused for holding the core sandduring the baking process. Sev-eral… … Fig. 237. Assembled Vie^ of Dry-Sand Core
Patternmaking
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