twisted keyway

[dls]

What about a twisted disk detainer key imagine trying to pick a protec with a twisted keyway

[vov35]

What about a twisted disk detainer key imagine trying to pick a protec with a twisted keyway

imagine trying to get that key in the lock....

[averagejoe]

What about a twisted disk detainer key imagine trying to pick a protec with a twisted keyway

imagine trying to get that key in the lock....

They already exist and went away some time ago.
http://www.antique-locks.com/miscellaneous-question-answer-forum/1568-twiskee-patents-history.html
Very interesting locks actually.

[dls]

Im thinking a little more sophisticated than that like a cruciform key with 5 pins per blade by 4 blades thats 20 pins all spools and serrated etc.

[vov35]

What about a twisted disk detainer key imagine trying to pick a protec with a twisted keyway

imagine trying to get that key in the lock....

They already exist and went away some time ago.
http://www.antique-locks.com/miscellaneous-question-answer-forum/1568-twiskee-patents-history.html
Very interesting locks actually.

That doesn't look like a disk detainer to me...

[kwoswalt99-]

Hi, I found a sidebar lock with a twisted key. I believe it's a german Fuhrmann lock. I don't know how to post pictures, but I will try to post a link. I do not know how to correctly post a link. First post.
http://blog.tresoroeffnung.de/2009/10/2 ... -von-1879/
Kyle

[Squelchtone]

Hi, I found a sidebar lock with a twisted key. I believe it's a german Fuhrmann lock. I don't know how to post pictures, but I will try to post a link. I do not know how to correctly post a link. First post.
http://blog.tresoroeffnung.de/2009/10/2 ... -von-1879/
Kyle

take a look at the first thing on the FAQs & General Information page: viewforum.php?f=2

[LocksportSouth]

I'm not sure if it was referenced elsewhere in this thread, but check out a Youtube video by "LockMan28" called "HYT Chain key Padlock "

It's a similar idea - flexible key padlock . Shame they're nigh-on impossible to find though

[kwoswalt99-]

I'm not sure if it was referenced elsewhere in this thread, but check out a Youtube video by "LockMan28" called "HYT Chain key Padlock "

It's a similar idea - flexible key padlock . Shame they're nigh-on impossible to find though

BB also did a video called "john coulter's weirdest lock on earth". And of course macgng has one of these things. It was a novel idea, but I'm afraid that's all it will ever be.

[GWiens2001]

Also have one of those chain key locks (and a couple different keyways of chain key blanks).

However, to match the person's question, they are describing a screw key. They are still frequently made in India and a few other places. The key is like a very course threaded screw, with dimple cuts along the threads. The keyway is also threaded, and pins stick down radially into the keyway along those same threads.

Don't have one of those yet, but would like to get one at some time. Here is an example:



Gordon

[stratmando]

Since Typical Picking may be tough, How about a Twisted Bump Key, All at the lowest cuts on the 4? sides, Then a couple quick Taps and Voila.
Hopefully?

[peterwn]

Im thinking a little more sophisticated than that like a cruciform key with 5 pins per blade by 4 blades thats 20 pins all spools and serrated etc.

During WW2, allied POW's defeated cruciform locks in their maximum security Colditz Castle prison and were careful not to let on to the Germans that they had done so. The cylinder is within the lock case and the key can be inserted either side and would have extra cuts for symmetry. The book 'Colditz Story' indicated the locks had 6-9 'pistons' and a prisoner who was a watchmaker made calipers to measure key depths. Seems the manipulator tensioned the plug and lifted each pin with the calipers until it binded at the shear line. Fortunately the limbs were straight and not paracentric. A key was made from the measurements. The prisoner watchmaker was able to acquire tools in exchange for fixing the Germans' watches.