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 141
but alsofor the core box, being turned in the lathe, together with the endsand core prints for the pattern. As there will be no middle support 124 PATTERN MAKING for the core in this case, the core prints must be made as shown inthe half pattern, Fig. 216, of sufficient length to balance the.… … Fig. 217 Screw CenterLathe Chuck Fig. 2IS. Appearance of Pattern of Lathe Chuck the long core print and balanced core. The casting must be counter-cored; that is, the cored opening must be enlarged at the forwardend, adding to the size and weight of that end of the core, which, aswill be seen, has…
Patternmaking
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