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 70
Fig. 115. Wheel Mold Coped Out over, the sand is cut away and removed, not only down to the center of the rim, but also to the center line of the four arms, as shown by the dotted hues in Fig. 115. All cut surfaces of the sand are smoothed, parting sand is sprinkled over the parting thus made, and…
Patternmaking
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