Tempeltårnet

In some versions of this ride you use your own power to pull yourself up. In Tempeltårnet, there is also a motor to assist you. How does it work?

How far do you have to pull the wire to raise the seat by 1m?
Try to have a friend take a short video while you ride, and also measure the accelerations. Combine the movie clip with accelerometer data.
Take a look at the patent DE9100603 from Heege Freizeit-technik. The drawing at the bottom of this page and to the left are screen shots from the patent documents.
The principle behind pulleys is demonstrated in many science center exhibits, e.g. from the Experimentarium