One of Arthur's earliest patents - which GeneB found and is number 361,838. Mentioned in the May 21, 1887 issue of Scientific American, application filed July 15, 1886. Busy guy.
Now.. what's the real use of a fiber cleaning machine? No idea.
One point I find interesting is that 1886 is when he reportedly moved to America. To move a family and develop and file a patent within half a year? Wow.