General Knowledge - Inventions - Discussion

Discussion :: Inventions - Section 1 (Q.No.44)

44. 

What Elisha Otis invented?

[A]. The brake used in modern elevators
[B]. Jet Engine
[C]. Turbine
[D]. Hydraulic Crane

Answer: Option A

Explanation:

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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