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What Elisha Otis invented?
  • a)
    The brake used in modern elevators
  • b)
    Jet Engine
  • c)
    Turbine
  • d)
    Hydraulic Crane
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What Elisha Otis invented?a)The brake used in modern elevatorsb)Jet En...
In 1853, American inventor Elisha Otis demonstrated a freight elevator equipped with a safety device to prevent falling in case a supporting cable should break. This increased public confidence in such devices. Otis established a company for manufacturing elevators and patented (1861) a steam elevator.
Many people think that he invented the elevator, but the truth is, he invented the elevator brake. He also invented the railway safety brake.
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