Cylinder Lockblocking Keys

[BIGORNEX]

Hello,

I would like to present to you not very known keys: the " Cylinder Lockblocking Keys" for very different types of locks such as Mortice-, Warded- and Furniture-Locks.
This are involves "mini-cylinders" which we introduce into the bigger locks, which stay inside to prevent the lock-picking.

I possess only 4 of this keys:
- one FLORA
- one BURG WÄCHTER
- two SCHLOSS KÖNIG
The pics :















The little part in brass, thus the small cylinder, has between 6 and 7 mm in diameter, it stays in the lock by rotation of a spur (for the FLORA and the BURG WÄCHTER).

For the two SCHLOSS KÖNIG, it is different, it is a system by screw, with threading to the left, and there are two fins of steel which maintain the cylinder in place in the lock.

We find them in hardware stores in Europe...

Sorry for my bad English, but i am French.

[unlisted]

I see those used over here for fire cabinets at commercial buildings- but only by themselves- not inside a bigger lock.

[BIGORNEX]

In Europe people put them in locks, the older people often call that a "mouse-lock"...
My father who was a cabinet maker, also used them in locks.

[BIGORNEX]

Please take a look here :

- http://www.burg-waechter.de/Produkte-Bu ... CHJRS-EN-p

[inverseentropy]

What, if you don't mind my asking, do these do? That Burg-Waechter site says "change plain door locks into full cylinder locks" but this does not enlighten me. Perhaps this is due to my lack of knowledge about European locks...

[unlisted]

What, if you don't mind my asking, do these do? That Burg-Waechter site says "change plain door locks into full cylinder locks" but this does not enlighten me. Perhaps this is due to my lack of knowledge about European locks...

Basically, the main lock (keyway) on a door has a large enough space milled into it for that smaller inner lock to fit right into it (the keyway) and be locked by a quarter turn. (locking the smaller lock inside the main bigger lock)

Thus locking the big key holder out, since the key cannot be physically inserted into the lock.

Think along the same application lines of using something like the device below:


http://www.majormfg.com/c-9-kee-bloks.aspx
http://www.pre-lock.com/kee-blok.htm (more info on it)

[Eyes_Only]

Think along the same application lines of using something like the device below:


http://www.majormfg.com/c-9-kee-bloks.aspx
http://www.pre-lock.com/kee-blok.htm (more info on it)

But I'm sure these additions our european friends have are a bit more of a challenge to pick that what we use in the USA pictured above.

[BIGORNEX]

Hello,

I took some photos to explain better this system of blocking.

A simple room door closed with the key:







The key of " additional blocking ":





We introduce the key of blocking into the lock of already locked door:





And here we are, it is closed second time, and seen the small diameter of the cylinder in brass, very difficult to pick :



Sorry for my presentation of the beginning, but I thought that this system was known everywhere.

[inverseentropy]

Ahh... Thank you for the explanation!

[Rickthepick]

theyre interesting.
the only ones i have seen look like mini euro cylinders that fit in the lock

[darklighterz7611]

very difficult to pick

I was told that with the right 'sized' tools these are really really easy to pick!!

Can someone confirm or deny this for me please?

[mh]

here is another one (3 tumbler Bramah system): viewtopic.php?f=9&t=46521&p=349411#p349411

Cheers
mh

[sengle]

I found the exact Burg Wachter that you have on the side of the road. The purpose of this key is for extra security, correct?

[femurat]

no, they are used to prevent the original key to enter the lock. I'd call them lockout locks

[Wizer]

I´ve got a couple of those keyway locks, but I think they´re ment for increasing security of simple wareded locks. You can´t pick one with a skeleton key.