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 112
se patterns the rims are built up of segments | inch to | inchin thickness. To illustrate this work fully, let us take up the suc-cessive steps in the construction of a countershaft pulley 20 inches indiameter and of 6-inch face, made to fit a shaft If inches in diameter.The pattern for such a… … UH3 Fig. 177. Sectional View of Pattern for 20-Inch Pulley If the rim is to be finished* on the face and edges only, -^ inchmust be allowed for facing, making the outside diameter of thepattern 20 J inches; and the width of the face should be 6\ inches.In addition to ?$ inch for finish, the draft…
Patternmaking
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