You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
■ Ice cream disher11. Gears Are UbiquitousGripping <strong>the</strong> lever ca<strong>use</strong>s:1 Gear teeth fixed to <strong>the</strong> lever travel2 A pinion turns its shaft3 A hemispheric disher turns<strong>The</strong>se actions help serve ice cream intoan ice cream cup.A set <strong>of</strong> <strong>gears</strong>■ Music box<strong>The</strong> rotation <strong>of</strong> musical movement starts inorder <strong>of</strong> worm, worm wheel, musical drumby turning <strong>of</strong> a handle, and <strong>the</strong>n playing <strong>of</strong>music starts.A musical movement (a worm gear pair isseen above.)- 35 -
Change language