Just to get away from chicken bones. We know there were two freight elevators that went to the upper floors and one that went to the 4 th and was called the passenger elevator. The two freight elevators had different mechanisms. Given those two differences I suspect that there was a clear protocol observed by the workers for use of them. Most working environments have these. I suspect that where possible the west elevator would be used and once the employee exited the gate would be shut. This would allow others to call it via press button. The east elevator could only be driven by use of a handle. It could not be called by others and could only be moved by someone on that floor after shutting the gate.
This would allow the east elevator to be used for moving larger quantities of stock to specific floors.
My question is this, if this protocol existencd in the TSBD and Williams, Jarman and Norman ascended together they would have used the west elevator and then shut the gate. This would have left them on the 5th and the west elevator able to be called. We now need to explain how the east elevator got to the fifth floor and essentially "locked off" from the first floor. We also need to wonder why Williams felt the need to take the east elevator to the fifth.
