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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 (1916)

Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 181

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, 1916, leaf 181
WoodScrews Fig. 28JL_Core Box for Bottom Core strike, it is possible to ram thesand firmly under each drawpiece, where it would be ratherdifficult to ram in any otherway. Sand is now cut out atthe top nearly to the shape ofthe. top crown, and the top ofthe core box pressed into place.This top may… … Fig. 284. Details of Bottom Core PATTERN MAKING 163 plate placed on top and the core box and all are rolled over. Thebottom can now be removed and the draw pieces drawn out throughthe side, forming the mold for the intermediate crowns 11, Fig. 272.The sides can now be taken from the core, which…

Patternmaking

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