Wednesday, 8 October 2014

Double Deck Elevators: Where was the first one?

 Double deck lift within the Eiffel Tower

A Double-deck elevator is a type of elevator where two cabins are attached to each other. One In a typical example, one of the elevators cabins will stop at even floors and the other elevator cabin can stop at the odd floors. They are also useful for  for delivering high volumes of people to a Sky Lobby in super high rise buildings. Double-deck elevators save time and space in high-occupancy buildings by mounting one car upon anotherhaving two cars in the same vertical shaft. The efficiency of Double-deck elevators serving all floors, can be further enhanced by the use of a destination control system.

The first Double–deck elevator was installed in The Eiffel Tower in Paris in 1889. by The Otis Elevator Company.  Charles and Norton were carrying on the work of their father, Elisha.  The Eiffel Tower has double-deck elevators built into the legs of the tower, serving the ground level to the first and second levels. Even though the shaft runs diagonally upwards with the contour of the tower, both the upper and lower cars remain horizontally level. The offset distance of the two cars changes throughout the journey.

There are four elevator cars of the traditional design that run from the second level to the third level. The cars are connected to their opposite pairs (opposite in the elevator landing/hall) and use each other as the counterweight. As one car ascends from level 2, the other descends from level 3. The operations of these elevators are synchronized by a light signal in the car.

Where are other examples of Double–deck elevators?

List of structures with double-deck passenger elevators:   
Dunbar and Boardman is the lift, escalator and access equipment consultancy. Do you have a current or planned project that includes Double-deck elevators? We would be happy to discuss any such requirements and how we may be able to assist. Give us a call on T +44 (0) 20 7739 5093 or send us an email via to start the conversation. We look forward to hearing from you.


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