reminds me of the frame work for an old grease gun like this:

but it also reminds me of something you'd see on a farm, such as some sort of nut cracker, or stirrer, something to take the pits out of peaches, I donno, that last one is just a silly guess, but it looks like the handles and such were stainless and made for food processing in a factory or farm. Also looks like you only have half of what ever it is, the top rail looks like it had a tank or hopper or some sort of attachment that would go on it, all those fancy cut outs arent just ornamental, that would have been to expensive to make back in 1920-1940 just for looks.
thanks for sharing, let us know if you find out what the heck it is!
Squelchtone