I saw that photo as well Hanno, but the 25 pounder rim does not have the same claws. The claws are also on the inside of the rims. I believe one end of the rope has two short chains. Could they each be attached to one side of the rim onto opposing claws, and the rope is dragged over the tire for mechanical advantage?
There has to be something in one of the manuals...surely it was not just conjecture on how to use these things?
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