I was in Omaha this weekend, and there’s a park downtown with a large sculpture of a wagon train going across the park. The wagons have things like plows and scythes and axes and shovels attached, and also…this thing.
The thing down on the right is clearly a handle, and if you pumped that handle, the left end of the top piece with teeth would go up and down. The teeth make me think that it’s intended to ratchet something.
What is it for?