Berlin Key
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Berlin Key
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Re: Berlin Key
#2Discovered via tweet: https://twitter.com/historyned/status/1178272006334242819?s=...
Seems like an elegant, physical embodiment of resource acquisition, state management, and release. Albeit uncomfortable in your pocket.
Comparisons to C++ std:: on some of these counts may be valid.
Re: Berlin Key
#3This is super clever, but I bet some of its potential applications conflict with egress safety requirements/laws.
(If a door is part of an exit route, you probably can't require a key to open it.)
Re: Berlin Key
#4"Also, locking an open door is usually not possible."
A good feature to have on otherwise normal doors so that they only ways to lock it is to be inside or outside with the key. I now have a greater appreciation for deadbolts.
Re: Berlin Key
#5Re: Berlin Key
#6This is super clever, but I bet some of its potential applications conflict with egress safety requirements/laws. (If a door is part of an exit route, you probably can't require a key to open it.)
It seems like you could have a similar system which also has some type of internal lever to release the lock although I assume this wasn't part of the original design.
Re: Berlin Key
#7This is super clever, but I bet some of its potential applications conflict with egress safety requirements/laws. (If a door is part of an exit route, you probably can't require a key to open it.)
Good point, but I doubt those rules existed anywhere in 1912 when this key was invented.
Re: Berlin Key
#8Video showing how it is used, really neat!
Re: Berlin Key
#9"Also, locking an open door is usually not possible." A good feature to have on otherwise normal doors so that they only ways to lock it is to be inside or outside with the key. I now have a greater appreciation for deadbolts.
This is what I did when I moved into my house. Dead bolts only, and dummy handles below.
Re: Berlin Key
#10I'm surprised some houses still use this. As it's impossible to leave the building without a key in case of a fire.
I suspect it may even be illegal today.