Do you know what this was for?

In this patent recreation video I focus on a mysterious wrench patent from 1919. I still do not fully understand why this was patented nor what the function of its design truly is, but I made it anyways, in hopes of finding out.
You can view the original patent here: https://patents.google.com/patent/USD...

Wrenches, screwdrivers, and socket drivers are now for sale at www.handtoolrescue.com

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Podcast (with @jimmydiresta and Andrew Alexander) - https://anchor.fm/fitzall

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