Who was asking about self-closing hinges for gates, and latches that could be easily opened from each side?
This is how it's done in Coalbrookdale....
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latch bolt is withdrawn by the lever rising from the top of the gate, so horsebods can use it easily. The gate swings closed because of the two-pin lower hinge and the latch catches because whichever side the gate shuts from the bolt, guided by the ramp, lifts the appropriate hook which then falls and traps the bolt.