Helical escalators, moving walkways, 3D elevators and alike, have been on the minds of engineers for many years. This Blog examines the history of these magnificent machines and the different attempts to build them.
https://helixator.wordpress.com/category/history/
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I’m a especialist work mechanic in escalators in the market, and i see the best and wonderful the next future in helixator or levitatory escalator, congratulations is great real, I wanna work in this escalatores, thanks,
Henrique Guedes