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US style lever handle set with build in combination! Sweet!

Information about locks themselves. Questions, tips and lock diagram information should be posted here.

US style lever handle set with build in combination! Sweet!

Postby Squelchtone » 31 Aug 2010 15:30

This is an interesting design, I wonder how it works...

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http://www.gizmodiva.com/home_improvement/numlock_handle_adds_twists_and_mysteries_to_your_door.php


What will they think of next?

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Re: US style lever handle set with build in combination! Swe

Postby MacGyver101 » 31 Aug 2010 17:14

squelchtone wrote:This is an interesting design, I wonder how it works...

This guy puts out some seriously slick designs... but I get the feeling that most of them (Digital Translator, Faucet, etc.) are often more along the lines of models of industrial design concepts, rather than functioning prototypes.
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Re: US style lever handle set with build in combination! Swe

Postby nathane » 2 Sep 2010 7:15

I also wonder how random the shuffling of the numbers is when the handle resets. Computational randomness is difficult enough, I would suspect that the mechanically driven shuffling in this would be at least somewhat predictable. Allowing the potential to derive the numbers either immediately or, worse case, over a couple observations of the handle immediately after access.

Would be interesting to pull this apart and test it out though.
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Re: US style lever handle set with build in combination! Swe

Postby Squelchtone » 2 Sep 2010 10:09

I'm disappointed to hear this is just vapor-ware. But thanks mac for the link to the other designs.

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Re: US style lever handle set with build in combination! Swe

Postby mh » 2 Sep 2010 15:34

In such a design, the wheels would need to rotate without much friction (otherwise it would be too difficult to use),
so they could also made to return to all 0 when released.

Cheers
mh
"The techs discovered that German locks were particularly difficult" - Robert Wallace, H. Keith Melton w. Henry R. Schlesinger, Spycraft: The secret history of the CIA's spytechs from communism to Al-Qaeda (New York: Dutton, 2008), p. 210
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