John Loughlin of Stanton Concepts came all the way to Sneek to show us
his invention. Together with his Bob Loughlin (his dad) they have invested quite some
time and money on this lock. And now John came to Sneek. To show us
how the lock works (with prototypes), and to maybe learn more about how
we would attack a system like theirs. First of all about the lock: it
is in fact a combination lock, as one would find on a safe. But
looking at the internals of the lock it does remind of Abloy too, with
all those disks and the sidebar. Look at this video to see the lock in
action, it really is a piece of art (or click on the image below to view the video).
The nice thing about this lock is that the combination is dialed with
a robot dialer. So the person controlling the key does not necessarily
need or have the combination. The key will dial it. It is also
possible to dial the combination by hand, using a special tool.
We have given John some suggestions. From covertly trying to record
the sequence with a contact microphone, and trying to figure out the
combination by listening closely how long it takes to rotate a disc,
to using a surface sander (abrader) to make the discs turn externally
by vibration. If the sidebar is in the top of the lock, the discs
might vibrate in the right position because of gravity. The part with
the cuts is the lightest of the disc, and will rotate cut-upwards when
vibrated. These are the kind of things you want to know before going
to mass production…

(Images by Eric Schmiedl)










 