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 71
Fig. 117 Cross-Section of CapPattern Fig. 118. Cap Rammed in Drag up as usual. When the drag is turned over, the position of- thepattern in the sand is as shown in cross-section in Fig. 118. Thesand that may have entered the curve cde is lifted out, and thenecessary draft is given to the sand at…
Patternmaking
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