It's not a Ratchet when it's a REECHET.
I found this on the top of a bunch of tools at the local flea mkt. yesterday. Seller wanted to sell the whole box of mostly junk but finally agreed to sell this separately. I originally thought it was just a strange ratchet that I had never seen before. It wasn't until I got home that I realized that it wasn't really a ratchet.
What I would call it is a long 90° extension. As you can see from the last photo, there is a female 3/8 square drive in the end. Turning the end of the handle either by hand or with a ratchet in the drive, causes the male end to rotate.
The patent description also says you can use it as a regular ratchet by holding the drive end so it can't rotate. I put the male end in my vise to see how it would work and found that it sorta does, but your fastener better not be very tight. While the knurling helps you hold it, it also is hard on the hand when it begins to turn.
The patent no. is 2594669 and can be seen at Google patents by accessing the link below.https://patentimages.storage.googleapis.com/pdfs/US2594669.pdf