What is alexander miles?

Alexander Miles was an African American inventor who is best known for patenting an improved design for the automatic elevator door. He was born in 1838 in Ohio, and little is known about his early life.

Miles' elevator door design included automatic mechanisms that would open and close the doors, making the use of elevators much safer and more efficient. His design was patented in 1887, and became widely adopted in buildings across the United States.

Miles' invention had a significant impact on the elevator industry, and is still in use in modern elevators today. He is considered a pioneering figure in the history of African American inventors, and his contribution to elevator safety is widely recognized.