Final Jeopardy
1000

In the past, riding an elevator was complicated and dangerous. Forgetting to manually shut both the elevator and shaft doors properly, posed a real risk of falling down the shaft. 

When this man's daughter was almost involved in a catastrophic accident, he decided to develop a system to make elevators safer. 

In 1887, this man was granted a patent for an automatic opening and closing mechanism for elevator and shaft doors that is still used today...

Who is Alexander Miles?