What Elisha Otis invented?
A
The brake used in modern elevators
B
Jet Engine
C
Turbine
D
Hydraulic Crane
Correct Answer: The brake used in modern elevators
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.