I need to find out more information about this clamp, but first off, I need to know what it is! Is it a clamp? Looks like clamp, but is it? The screw shown goes in freely into the top of the c bracket, and when through is supposed to screw into something else. But I'm very curious to know, what are these things called? I may or may not be a McMaster Carr item. Please help. Photos attached.
Could be a clamp or puller or a spring compressor like you might use to install shims in an OHC engine. It might be used to install pulleys or gears on a shaft too.
It looks like a clamp used on a fixture plate. The bold is screwed into the fixture plate, the part inserted under one of the legs and the wing nut tightened. It is probably meant to hold two parts. The pivot in the middle allows it to accommodate differences in the heights of the parts.