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 218
awn through the Stripping Plato Drag Mold, Fig. 342 illustrates the cope and drag machine,with the patterns in position for molding. As the sand is rammedto cover the pattern c, the operator pinches the facing sand into PATTERN MAKING 199 the hole d with thumb and forefinger. The handle k is then… … \ Fig. S44. Same Machines aa Fig. 342, with Patterns Drawn draws the patterns c and Ci through the stripping plate h, and thedrag mold is completed. The pattern C2 is not drawTX throughthe stripping plate, as enough draft can be given to this part toallow the mold to be easily lifted, the flask…
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
