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 80
Fig. 135. Allowances for Finishand Draft Fig. 136. Position for Molding withoutAdded Draft long, 1 inch wide, and 1 inch thick. A slender bar of this length isliable to warp or bend when cooling in the mold, and for thisreason the bar should have an allowance of at least | inch all overfor finish,…
Patternmaking
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