I need to refurbish an exterior gate and would prefer to mount it such that
it will open in both directions.
The hinges would need to be sprung so as to return gate to the central
closed position.
It's a fairly hefty oak gate, approx 1.5m square, stiles are 100x100 and it
is close boarded.
Reasons for the above are (1) occasional wheelchair use (2) free-range
tortoise & (3) free-range kids who will not close the gate.

Anybody know if the hardware I'm looking for is available?
I've googled for it but can't find what I'm after.

I could use field gate type hinges but the spring closure then presents a
problem.

Thanks
Phil