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 120
pulley is to run, and thelength is proportioned to thewidth of the rim as well asits diameter. The length ofthe hub should be abouttuo-thirds the width of therim, except in the cases oftight and loose pulleys, wherethe hub should be a triflelonger than the width of the rim, and it may then project… … Ctrsk for woodscreworthrdedfor mack screws. Draw Plate F12. 182. RappiDg and Draw Plate 104 PATTERN MAKING The molder is therefore in the habit of rapping the pattern gentlyin order to loosen it in the sand before attempting to draw it. Ifthe pattern is not provided with a metal plate, the molder…
Patternmaking
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