Reply by Dan Lyke

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Posted on National Treasure Desk *Spoiler*

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Dan Lyke

1520 posts in 4454 days

#1 posted 01-03-2008 07:36 PM

I didn’t see the movie, but… You know how a standard key lock works, right? There are a bunch of pins that are split in two at different places, the pins rest on the key, so when you put the key in you’re pushing all the pins so that the breaks line up at the edge of the cylinder and you can turn the key.

So you could put a lip along the edge of each drawer, cut a notch in that lip at different places in each drawer, and have a bar that had notches to accommodate the lip running vertically such that when your drawers were pulled out to the right location the notch in the lip lined up with the bar.

Just as in a regular lock, how accurate you can make those notches keeps you from doing pin-by-pin picking (the way you normally pick a lock is put a little tension on the lock, and then manipulate the pins up and down, hoping that there’s enough slop in the manufacture that they’ll stick slightly when one is lined up, so you can line them up one at a time), but for a kid’s desk so that they can have their very own secret compartment this should be no problem to whip together.

-- Dan Lyke, Petaluma California,

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