Otis (Former Montgomery) Traction Staff Elevator #1 Medical District OKC

This is one of two staff elevators in this hospital. These elevators are rockets. This particular elevator when going up, non stop, after about 6 floors will start to vibrate. You can hear it in this video. If the elevator stops at all when going up, it will not vibrate. These were originally Montgomery and were modded by Otis.