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 127
TTERN MAKING iron pulley-rim patterns, one of these can be used, striking down tothe top of the 3-inch print c if the edge of the rim pattern is too high.Flange Core. The length of the core box for the inside flange.Fig. 189, will be made to allow twelve half cores. Multiply the insidediameter of… … Fig. 191. Section of Cored-Arm Pulley Mold core box should be about J inch, and the other dimensions are givenin Fig. 189. Two patterns for the flange will be made, one to be nailed inplace in the core box, and one to be used to mold the upper insideflange. Strike. The strike a, Fig. 190, is made…
Patternmaking
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