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 (1921)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 151
Fig. 241. Valve Stem i^ut Nut for valve Fig. 242. Details of Valve and Valve Nut … Fig. 243. Valve Spindle. (This pattern 13 not split) Drying Ring, A pattern for the drying form or ring should bemade to the shape shown in Fig. 239, which is to be fitted into the PATTERN MAKING 133 core box at e. After drying the core, these rings are slipped endwisetoward the chamber and then…
Patternmaking
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