Mystery tool

We’ve had a very interesting old rag rug making tool extremely kindly sent to us by Angela Jones in Kentucky USA. She bought it in a local sale but it was made, quite some time ago, in the UK. It has a UK provisional patent number which we haven’t been able to trace. It looks experimental and doesn’t really do the job, though it certainly does seem to be meant for rag rug making . The teeth rip thick cloth; the hole under the teeth makes thin cloth fall out of it. We’ve been trying to find out more about it but have drawn a blank. If anyone knows anything about it we’d love to hear from them. And, of course, we’re hugely grateful to Angela! Here’s some pics: