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 138
Fig. 209. Elbow PipeFitiiiig Lathe Mounting. In mounting heavy split patterns in thelathe, a sjxicial metal dog should be provided, and one such as inFig. 20G will be found to meet most requirements for this class of PATTERN MAKING 121 work. In using this dog, which is also the center on which…
Patternmaking
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