How an Escalator Works
By Joan L. James
The escalator was invented by Jesse W. Reno in 1891. Click
Here to see a mechanical drawing that shows how an escalator
works.
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An escalator, or moving stairway, carries passengers from one level to the
next. They can move up or down. Usually you will see an up
and down escalator side by side. Sometimes they have a real
stairway between them or nearby as an alternative.
The up and down escalators shown on
the left have a stairway between them. |
How to Use an Escalator
The passenger must step on the lowest stair platform, then grab
the hand rail, which also moves. The passenger then stands on
that
stair and is carried by the escalator to the next level. At the
end of the trip, the passenger's stair platform appears to level
out even with the floor and the passenger must step off as the
stair tread appears to disappear into the floor, letting go of
the moving
handrail.

Safety tips
It is a bit scary when you first try one, but I promise you won't
be sucked into the floor, but don't put your hands or other objects
on the stair platform.
Watch children carefully and always hold onto the moving handrail
once you are on the stairway platform, just in case the escalator
stops suddenly.
Most escalators have an emergency stop button at the top and bottom.
Always move away from the exit point as quickly as possible. If
there are a lot of people on the stairway and someone falls at the
exit point, they can be injured by the other passengers as they
attempt to exit the escalator.
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