The Inclined Elevator
What is it?
An escalator is a moving staircase and when it stops moving it becomes a normal staircase. It consists of individual steps moving on an inner and outer track and a handrail that moves with the steps because that is more convenient than a non-moving hand-rail. The steps and the hand-rail are powered by a motor.
It has evolved since the first one. It is running more smoothly and there are less injures when riding on it. It has become quieter and can be placed between 2nd and 3rd stories. Plus manufacturing has become quicker. Some things humans would have to do are being replaced by robots.
The very first escalator was called the "inclined elevator".
He is the first one to make an escalator, although he is not the first one to have the idea. People like Nathan Ames and Leamon Souder had the idea before him.
The escalator has become more advanced and more efficient. They have also become more common. You can see them in malls, business buildings, and even in gyms, which is ironic.