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 211
^ f … Fig. 329. Cope and Drag Machines for Molding Cover in Fig. 331. The pattern c is shown in position for molding andalso after being drawn. The patterns cc are assembled on thepin P and mounted in the forged yoke or hanger H, which is bolted
Patternmaking
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