Among his many patents were brakes for railroad cars, a steam- driven plow, and a baking oven, but he may be best known for an 1852 "safety hoist.
Among his many patents were brakes for railroad cars, a steam- driven plow, and a baking oven, but he may be best known for an 1852 "safety hoist." For 10 points—name this inventor of a device which prevents a broken lifting chain from causing an elevator car to fall, which led to the first passenger elevators.
Among his many patents were brakes for railroad cars, a steam- driven plow, and a baking oven, but he may be best known for an 1852 "safety hoist.
Elisha Graves {Otis}