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 140
Fig. 215. Return-Bend Pipe Fitting Fig. 216. Section of Pattern for Pipe Fitting the upper side of the casting too thin, all of which is avoided inthe double pattern. Return Bend. A pattern for the return bend. Fig. 215, may bebuilt up and constructed in the same manner as described for theelbow;…
Patternmaking
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