Let's take a look at this winch in this youtube video [link below](way to small to lift an elevator but still the same principle). If I were to use this winch in a dumbwaiter to lift a load of 100lbs (no counterweight / lifting straight up) are you saying that the 100lbs load would turn the input (the worm) and descend?
https://www.youtube.com/watch?v=LUYqVE1R2KA Theory and reality are two different things. You can't tell untill you try it.
There are safety codes written because theory doesn't equal safety.
