Essay About Wafer Tumbler Locks And Cylinder Wall

Secret of Lock Picking
Secret of Lock Picking
Contents
Introduction
Tools
Lock Identification
Pin Tumbler Locks
Wafer Tumbler Locks
Double Wafer Locks
Pin and Wafer Tumbler Padlocks
Tubular Cylinder Locks
Mushroom and Spool Pin Tumbler Locks
Magnetic Locks
Disk Tumbler Locks
Tips for Success
INTRODUCTION
The ancient Egyptians were the first to come up with
a complicated security device. This was the pin tumbler
lock. We use the same security principle today on millions
of applications.
The most commonly used lock today is the pin tumbler
lock. A series of pins that are divided at certain points
must be raised to these dividing points in relationship to
the separation between the cylinder wall and the shell of
the lock by a key cut for that particular series of pin divi-
sions. Thus the cylinder can be turned, and the mechanism
or lock is unlocked.
Lock picking means to open a lock by use of a flat piece
of steel called a pick. Actually, the process requires two
pieces of flat steel to open cylinder locks. It amuses me
to watch spies and thieves on TV picking locks using only
one tool. But it is for the better in a sense. If everyone
learned how to pick locks by watching TV, we would all
be at the mercy of anyone who wanted to steal from us,
and the cylinder lock for the most part would be outdated.
The actual definition of lock picking should be: “The
manipulation and opening of any restrictive mechanical
or electronic device by usage of tools other than the
implied instrument (key or code) used solely for that
device.” A little lengthy, but more accurate description.
With cylinder locks, it requires a pick and a tension
wrench.
By picking the lock, you simply replace the function
of a key with a pick that raises the pins to their “break-
ing point,” and using a tension wrench one rotates the
cylinder to operate the cam at the rear of the locks cylinder
to unlock the mechanism.
(See Fig-01.GIF)
The tension wrench is used to apply tension to the
cylinder of the lock to cause a slight binding action on
the pins as well as to turn the cylinder after the pins have
been aligned by the pick; this opens the lock. The slight
binding action on the pins caused by the tension wrench
allows one to hear and feel each pin as it “breaks” or
reaches alignment with the separation of cylinder and
shell. The vibration is felt in the knuckles and joints of
the fingers, and the sound is similar to that of a cricket
in an arm wrestling match-a subtle yet distinct click.
Usually you need very little tension with the wrench