40+60+proj-+Lauren+L

Elisha Graves Otis

Made the first Elevator Brake

improved safety of elevators

Used a ratchet on a spring to catch the elevator if it fell.

Made in Connecticut

Without it, if an accident happened, Tower of Terror would happen all over again. (It would fall)

1854, demonstrated how safe it was by cutting the elevators cable with an ax, and it stayed in place. Demonstrated at Crystal Palace Exposition in New York.

http://www.enchantedlearning.com/inventors/1800b.shtml