Cause of death: acute pneumonia
Elisha Graves Otis (August 3, 1811 – April 8, 1861) was an American industrialist and founder of the Otis Elevator Company. In 1853, he invented a safety device that prevents elevators from falling if the hoisting cable fails. On March 23, 1857, he installed the first safety elevator for passenger service in the store of E.V. Haughwout & Co. in New York City.
Source : Wikipedia
