willbe made of the same elliptical shape and in the same wayas described in the case of the eight-inch pulley. Fig. 53. BEVKI. GUAR PATTERNS. Before taking up the construction of bevel gear pat-terns, it will be well to say something about the linesrequired for laying them out. The first thing is… … Fig. 61. 122 WOOD PATTERN MAKING other angles than right angles; if this is required, thefirst two lines laid down must be drawn to this angle.The next step is to determine the size and the ratio of thepair of bevel gears to be made. The pitch diametfer of abevel gear is always measured at the…
Patternmaking
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