When did James Kay - British inventor die?

There is no widely recognized British inventor named James Kay. It's possible the name is misspelled, or the individual was not prominent enough to have a recorded date of death.

To assist you further, please provide more details about the inventor:

* Full name: Is there a middle name or other identifying information?

* Field of invention: What did this individual invent?

* Approximate time period: Do you know when they were active?

With more information, I may be able to help you find the death date.