The longest set of single-span uninterrupted escalators in the Western Hemisphere is at Wheaton station on the Washington Metro Red Line They are 230 feet (70 m) 55 56 long with a vertical rise of 115 feet (35 m), 56 and take what is variously described as 2 minutes and 45 seconds citation needed or nearly three-and-a-half minutes, 57 to ascend or descend without walking.
The floor plate provides a place for the passengers to stand before they step onto the moving stairs, flush with the rest of the floor and usually hinged to allow easy maintenance access, while UV Handrail Sterilizer the comb plate lies between the stationary floor plate and the moving step, so named for the cleats on its edge which mesh with the matching cleats on each step (and resemble a comb).

In the first half of the twentieth century, several manufacturers developed their own escalator products, though they had to market their devices under different names, due to Otis' hold on the trademark rights to the word "escalator." New York -based Peelle Company called their models the Motorstair, while Westinghouse called their model an Electric Stairway.
Most modern escalators have single-piece aluminum or stainless steel steps that move on a system of tracks in a continuous loop. This is one of the reasons why some people are hesitant to grab the handrails. This device consisted of flat, moving stairs, not unlike the escalators of today, except for one important detail: the step surface was smooth, with no comb effect to safely guide the rider's feet off at the ends.
Forget the elevator pitch, it's time to hop on an escalator to a more effective company pitch. The Schindler handrail Ultra UV device was officially released in March 2020. A new way to disinfect handrails: an advanced sanitation solution for escalators and moving walks helping prevent the spread of viruses and providing safe travel for passengers.

In most escalator models manufactured after 1950, both the riser and the tread of each step is cleated (given a ribbed appearance) with comb-like protrusions that mesh with the comb plates on the top and bottom platforms and the succeeding steps in the chain.
The product blocks any sources of infection from spreading by completely destroying the DNA of germs via UV LED light having a wavelength of 278 nanometers,” LG says, adding that it is harmless to the human body. Escalators have a grip at their side for passengers aboard to hold.