My great grandfather, James Layton Patterson was a builder and inventor. This photo shows an installation of an air conditioner that he built. It was installed in the Charles Restaurant in Fremont, Ohio.
I don’t think his air conditioner ever made it big. Instead, he was known as a builder in the Tiffin, Ohio area. He built a number of commercial buildings and homes, at least two of which were his own homes.
Here are a couple more pictures of the air conditioner itself: