I like "orange fitter". ;-) The first letter looks like a B (see the B in Birmingham). I was unsuccessful in searching through old occupation sites for any relevant kind of fitter until I found
http://privatewww.essex.ac.uk/~matthew/Papers/Woollard_1881C...Might "range fitter" be a possibility? What was his occupation on the previous census?
If that doesn't help you out, try a new post on the appropriate location board to ask about occupations in iron works. I suggest that because I don't think a post on the occupations boards will be very successful.
Good luck!