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 240
^- Zfry sane? cores I Check flask %m&mim-:-- WiSm Fig. 384. Section of Complete Mold … -Z)»y sand con* ^y?nag/kLS* mounted on a faceplate and turned true on the inside and on theends. A very slight draft—about ys mcn—should be allowed onthe inside, and the height of the box will be 12 inches. The print o,hub p, and arm q patterns are fastened to the bottom board r: 222 PATTERN MAKING…
Patternmaking
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