Portrait of Otis Elevator Company founder Elisha Otis, 1860
OTIS ELEVATOR Company Postal History Cover 1932 Corner Card
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A Brief, Interesting History of the Otis Elevator Company
9 Revolutionary Elevators From The Otis Elevator Company | Popular Science
Vertical cylinder, rope-geared hydraulic elevator with 2:1 gear ratio and rope control (about 1880). For higher rises and speeds, ratios of up to 10:1 were used, and the endless rope was replaced by a lever. (Courtesy of Otis Elevator Company.)
Elisha Graves Otis (1811-1861) was the founder of the Otis Elevator Company, and inventor of a safety device that prevents elevators from falling if the hoisting cable fails.
Otis Elevator Company - Wikipedia, the free encyclopedia