These rolls are attached to the pit cages.
During the way up or down the shaft they are in contact to the vertical bars
you can see in the previous picture. By that the pit cages are obtained from
becoming instable during the ride.
Special thanks to
Arno Hoffmann for sending me the
CD with the photos. If the - pitily unknown - photographer does not want the
pictures to be published here, please send me an
e-mail.