The folding 13A plug design for laptops is a nice piece of work. He has clever solution to the problem:
“My intention of the project was directed to make the plug as slim as possible and follow the British Standard regulation at the same time.”
All well and good, but as the engineering maxim goes “Cheaper, faster better: choose two”
I chose a) 'cheaper' and b) 'faster'.
“My intention of the project was directed to make the plug as
slim as possible and follow the British Standard
regulation at the same time.”
Behold:
Interestedly, I learnt that the gate on a 13A socket is not operated by the earth pin as I had always assumed, but it instead requires something to be pushed in both live and neutral simultaneously. There is no substitute to trying something.