Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 89
hiswork to discuss the correct forms of gear teeth. Example 12. Spur Gear. Fig. 167 shows theelevation and sectional plan of a portion of acast-iron spur gear. The diameter of the pitchcircle is 23y8 inches, and the pitch of the teethis 1% inches, so that there will be 50 teeth in the 86 MECHANICAL… … rig. 167—Portion of a Cast-iron Spur Gear. Mortise Gears. When two gears meshing to-gether run at a high speed the teeth of one aremade of wood. Tliese teeth, or cogs, as they aregenerally called, have tenons formed on them,which fit into mortises in the rim of the gear. This gear with the wooden…
Mechanical drawing · Machine design
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