[Ether]

While you're waiting for responses, providing more detail would help.

How is the "worm" connected to the wire rope, and how is the wire rope connected to the load?

For example: the worm (part number ???) drives a ???-tooth gear which turns a ??? inch diameter winch drum which reels in the rope which goes over a pulley at the top and directly lifts the load. You get the idea. More detail. A series of properly-focused pictures taken from several angles would help greatly.