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 168
n, it maybe provided with a special core boxor better with a sweep, as shown inFig. 269. This sweep is used toshape the loam core that is to bebuilt up on an iron pipe. Fig. 269is the outline of the template thatis to be used in sweeping the corefor the interior of the columnsshown in Fig. 270.… … Fig. 269. Strike,for Making LoamCore for Column Fig. 270. CompletedColumn Pattern 152 PATTERN MAKING
Patternmaking
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