Since the invention
of elevator by Elisha Graves Otis the machine has become
indispensable in high rise buildings all over the world.
For skyscrapers the elevators are essential without
which the functionality and the very existence of construction
lies in jeopardy. Elevators facilitate construction
of high rise and even some luxurious low rise building
as the only means of vertical transportation. With the
mushrooming of high rise buildings and mega structure
the demand for elevators have taken a four fold leap.