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 86
Fig. 137. Finished Bronze Bushing withFlange at One End Fig. 138. Plan and Elevation of Patternfor Bronze Bushing but the upper core print is given the excessive draft of -^ inch to itslength so that the cope can be easily luted off and returned againover the tapering end of the dry-sand core…
Patternmaking
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