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 69
--;-^ i^ … Fig. 112. Solid Pattern Rammed in Drag Fig. 113. Coped-Out Mold for Solid Patterns in Fig. 112, the entire pattern being embedded in the sand. Thesand is now cut away and removed, as shown in Fig. 113, downto the center line of the pattern. The cut sand is smoothed; and,after dry parting sand has…
Patternmaking
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