Stainless Steel Automatic Elevator Door

Alexander Miles was a successful Black inventor in the late 19th century, best known for inventing elevator doors that could automatically open and close. His invention made riding an elevator much safer, with automatic doors still being a standard feature on modern-day elevators.Gate: The door on the elevator car is often referred to as a gate. In the early days these were expanding collapsible and therefore called gates. Solid units are normally called car doors but sometimes referred to as gates.The doors are usually made up of mild stainless steel. The mild stainless steel provides durability to the elevator door.