1. Energy Manipulation and Transfer

2. Bevel Gears
Differential Drives
Grain Mills
Hand drills
Flood Gates

3. Cam and Follower
Lawn Mowers
Car Engines
Steam Engines
Toys

4. Crown and Pinion
DVD player
Hand drill
Lock gate control on canal

5. Lead screw
Car Jack
Floppy disc drive
DVD drive with lead screw
Vise

6. Pulleys and Belts Air conditioner compressor Power Steering pump
Water pump
Air conditioner compressor
Power Steering pump
Alternator

7. Rack and Pinion Rack railway on train Ice cream scoop Car steering

8. Simple Gear Train
Gear box
Radio
Transmission
Watch

9. Simple Gear Train with Idler
Idler gear
Paper rollers
Metal Lathe

10. Line shaft system of cotton mill
Universal Joints
Driveshaft
Power take off
Line shaft system of cotton mill
Prop shaft

11. Worm and Wheel
Rudders on a boat
Winch
Guitars
Odometer