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 70
d is cut away and removed, not only down to the center of the rim, but also to the center line of the four arms, as shown by the dotted lines in Fig. 115. All cut surfaces of the sand are smoothed, parting sand is sprinkled over the parting thus made, and the cope is placed in position and rammed… … 56 PATTERN MAKING which a single-piece pattern can be used, is shown in the journal-boxcap illustrated in Fig. 116. A cross-section of the pattern through twoof the bolt-hole core prints is shown in Fig. 117. The pattern isplaced on the molding board in the inverted drag, and is rammed
Patternmaking
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