FLOOR TO FLOOR

How elevator mechanisms are controlled

1 STEP INSIDE

The doors of elevator cars are unlocked only when they are level with a building’s floor.

2 POWER UP

The motor turns, transmitting the force of this movement to the cable’s pulleys.

3 BIG BOOST

Multiple pulleys increase the mechanical force to lift the elevator.

4 JOINING FORCES

Strong cables connect the car and counterweight, balancing them over a central motor and pulley.

5 GRAVITY ASSIST

Heavy iron counterweights reduce the energy needed to move the car.

6 SECURE TETHER

This holds the end of the cable, keeping the system stable.