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 150
Fig. 238. Pattern for Stuffing Box … Fig. 239. Core Box for Stuffing Box each end, which, like the main pattern of the valve, must be partedor made in two halves. 134 PATTERN MAKING Core Box. Figs. 239 and 240 are illustrations of the core boxand core for the stuffing box and bonnet. The process of building this core box is very…
Patternmaking
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