[[Image:Etowerpulley.jpg|right|thumb|An elevator pulley in the Eiffel Tower.]]

The [[Eiffel Tower]] has Otis 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.

चलपट्टा उद्वाहक Paternoster
गेटवे आर्च The Gateway Arch
आयफेल टॉवर Eiffel Tower
उद्वहन यंत्रप्रणालीचे प्रकार