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by sydney vititoe and spencer wilson n.
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Crane PowerPoint Presentation

Crane

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Crane

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  1. By Sydney Vititoe and Spencer Wilson Crane

  2. The Purpose of the Crane • The crane is used to lift workloads

  3. The Original Inventor of the Crane • The crane was invented in the late 6th century by ancient Greeks

  4. Innovations of the Crane • It used to be made of wood and rope, and now it is made of metal and steel cords.

  5. Positive Impact on Society • It made it easier to lift heavy things to build buildings and other structures

  6. Negative Impact on Society • It has made less jobs for people because not as many people are needed to build buildings

  7. Types of Cranes • Mobile Cranes • Telescopic Cranes • Tower Cranes • Truck Mounted Cranes • Rough Terrain Crane • Loader Crane • Overhead Crane

  8. Why is the Crane Important • The crane is important because it allows us to build bigger buildings and offices. • It can also lift crates off of cargo ships

  9. Other People who Used the Crane • Egyptians • Greeks • Romans

  10. Parts of a Crane • Base • Mast(tower) • Slewing Unit (allows crane to rotate) • Jib(Working arm, carries the load) • Machinery Arm • Operators Cab • Motor

  11. How Much Weight Can They Lift? • Maximum unsupported height: 265 feet • Maximum reach: 230 feet • Maximum lifting power: 19.8 tons • Maximum load: 18 tons

  12. Bibliography • http://science.howstuffworks.com/transport/engines-equipment/tower-crane2.htm • http://www.ask.com/?o=0&l=dir • http://www.google.com/ • http://www.engineeringcivil.com/various-types-of-cranes.html