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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 228

An illustration from 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, leaf 228
Fig. 363. Iron Core Box for Green-Sand Core … Fig. 364. Core Box Closed is placed in the drag half, the ends extending through the notchedends of the core box. Green sand is rammed in drag and cope andstruck off level with the top of each half. The core box is closed 210 PATTERN MAKING by lifting on all four handles like closing a book, print…

Patternmaking

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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