In Prague's CTU main campus there are two paternosters and I had heard about two fatalities in them, one of them involved somebody who wedged pair of skis betwe

In Prague's CTU main campus there are two paternosters and I had heard about two fatalities in them, one of them involved somebody who wedged pair of skis between cabin and platform other one was IIRC also about transporting something obviously impractical. If I understand it correctly, paternosters are so rare that current elevator safety standards ignore them as a separate category and lump paternosters together with normal elevators without cabin doors. Probably every paternoster currently in use not only has safety sensors preventing (reasonably sized) objects being caught between cabin and platform but has had them since it was installed. Similar mechanisms are being retrofitted onto elevators without cabin doors but the implementation is different (as elevator-style proximity sensor that interlocks cabin movement would obviously negate any benefits of paternoster)