Goin' thru my pile and found some, here's the first: At first glance I thought it was a strap wrench but it's not. inside the circle is threaded. other side of the handle reads "patent pending". Thanks
Bruce
Spring compressor???
You didn't list the diameter, but it looks like a thread chaser for pipe.
inside diameter about 2 3/8. Fully compressed a touch over 2 1/8. Thread chaser makes sense. Thanks
Bruce
Oops, didn't see the internal threads!!
Could be a wrench for holding a threaded thin wall tube, something like the brass drain tubes used on sinks and tube before the plastic stuff became common. Or maybe hydraulic cylinder tubes.
I don't think thread chased, because lack of any fluted or cutting edges.
Joe B
Maybe a support handle for a power tool ? Could be folded when not in use ?
EvilDr235