The Safe Elevator

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The Safe Elevator!

• Thomas, Sara and Corey

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A Safe Elevator

• In 1852 Elisha Graves Otis built a safe elevator.
• It had a safety brake to stop the elevator even
  if the ropes broke.
• If the cable did break a hook would hook in
  toothed guide rails and the elevator would hang
  so the people could get out of the elevator.

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Facts About Elisha Otis!

• Elisha Otis was an inventor who worked at the
  Bedstead Factory of O. Tingley and Company.
• Elisha Otis was born on a farm near Halifax. He
  was born August 3,1811. Elisha Otis died on April
  8,1861.
• He spent 3 years trying to think of an invention
  and one day he heard about the cables braking on
  elevators and invented the safety brake.

www.theelevatormuseum.org
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If there were no elevators

• If there were no elevators we would have to use
  the escalators.
• If there were no elevators we would have to move
  heavy things up the stairs with a dolly.
• If there were no elevators we would have to use
  stairs.

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Our Own Invention
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Our Sources

• http//www.theelevatormuseum.org
• http//inventors.about.com/library/inventors/blele
  vator.htm
• http//go.grolier.com