I was passing a large mansion entrance and noticed these hinges and brackets (latch) still in place, although there wasn't a gate there any more. It must have been huge in height as well as in thickness going by the locking bracket on the right.
Now some of you friends from the UK may well remember the comedy duo called "Hinge and Bracket", who where original two young student female impersonators who became Dr. Evadne Hinge & Dame Hilda Bracket, two elderly singers.
They were both students from the Royal Scottish Academy of Music and very talented in their own right, but the double act took over for many years. Perhaps they stopped when they became rusty as well.
Interesting history on Dame Hilda.