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New Maglev Elevator Can Travel Horizontally, Vertically, and Diagonally (wired.co.uk)
An elevator that can move in any direction has been successfully tested by a German company named ThyssenKrupp. An anonymous reader quotes Wired UK:
The Multi is the first ropeless lift, built using the same magnetic levitation technology used in Japan's bullet train and proposed for the Hyperloop. In the same way the train slides along a track horizontally, the lift travels both vertically, horizontally and diagonally around a building riding an electromagnetic field, a system known as a linear drive. "If you can run a 500-tonne train on magnets at 500km/h you should be able to elevate a cabin of 500 kilograms or 1,000 kilograms at a speed of five metres per second," [ThyssenKrupp CEO Andreas] Schierenbeck said.
The elevator can cost 3 to 5 times more than a regular elevator -- but can handle higher buildings than a conventional elevator.
The elevator can cost 3 to 5 times more than a regular elevator -- but can handle higher buildings than a conventional elevator.
Wrong reference. This is clearly a Willy Wonka elevator.
No, not really. The ones with cables have a counterweight, so they tend to stay put, unless the cable snaps - that's when you need emergency brakes. The hydraulic ones will descend if there is a leak or power fail, but still at a relatively safe pace.
There's more than one emergency break system on elevators. One is a wheel break on the pulley, which engages in the case of power loss (or in normal operation, while elevator is at a floor).
The other is the track break, which engages in the event where the rope snaps (clamps on the cabin that seize the metal tracks that guide the cabin).
Both would be difficult to put in place on a Maglev system.
No, not really. The ones with cables have a counterweight, so they tend to stay put, unless the cable snaps - that's when you need emergency brakes. The hydraulic ones will descend if there is a leak or power fail, but still at a relatively safe pace.
A lift engineer told me that the counterweight is usually set for somewhere near half the maximum load to minimise energy use, so if all power and the brakes fail you will go up if you are alone in the lift or down if you are in a fully loaded lift. He said that modern lifts are built so that if this does occur it is survivable without injury by having a either buffer or fixed slides at the bottom of the shaft, and having either the same at the top or enough "jump space" for the lift car to continue once the counterweight hits the bottom until gravity makes it fall back against the cables. I imagine that must be scary.