| |
|
|
Locksmiths E7 - Locksmith E7 - Locksmiths Forest Gate - Locksmith Forest Gate Plumbers E7 |
|
| |
| |
|
|
HOME | SERVICES | FEATURES | ABOUT | CONTACT | TESTIMONIALS |
|
| |
|
|
|
|
|
| |
Securing one's property has long been a concern of people throughout |
|
|
|
|
| |
the world. Beyond hiding the objects or constantly guarding them the |
|
|
|
|
| |
most frequently used option is to secure them with a evice. Early |
|
|
|
|
| |
solutions included knots to either detect, like the Thief knot, or hamper, |
|
|
|
|
| |
like the Gordian Knot. Historians are unsure where the first lock was |
|
|
|
|
| |
invented, but evidence suggests that locks initially developed |
|
|
|
|
| |
independently in the Egyptian, Greek, and Roman civilizations. Wooden |
|
|
|
|
| |
locks and keys were in use as early as 4,000 years ago in Assyria. The |
|
|
|
|
| |
first known lock with a key is a pin lock. The lock is strung on a rope |
|
|
|
|
| |
hanging out of a hole in a door. A cylinder of wood with a hole drilled |
|
|
|
|
| |
through its axis is the key, the length of the cylinder being the critical |
|
|
|
|
| |
factor. The key is inserted into the hole & the bolt is pushed the correct |
|
|
|
|
| |
distance. To lock the door the rope was pulled to extract the key |
|
|
|
|
| |
cylinder, simultaneously pulling the bolt closed. This type of lock is still |
|
|
|
|
| |
in use in certain parts of the world. Puerto Rico still uses this system. |
|
|
|
|
| |
A disadvantage of this lock is that a vandal can push the rope into the |
|
|
|
|
| |
hole — an ancient equivalent of putting glue into a lock. |
|
|
|
|
| |
|
|
|
|
|
| |
Early improvements in pin locks included increasing the number of pins |
|
|
|
|
| |
to increase security, and changing the orientation of the pins to allow the |
|
|
|
|
| |
key to provide the unlocking force instead of a rope, thus establishing |
|
|
|
|
| |
the principles of the modern pin tumbler lock. |
|
|
|
|
| |
|
|
|
|
|
| |
Next was developed a warded lock that is still used in modern times when |
|
|
|
|
| |
the security required is not high and cost is a significant factor. It is the |
|
|
|
|
| |
first lock design to have a key recognizable to a modern western person. |
|
|
|
|
| |
|
|
|
|
|
| |
Lock puzzles were used to obscure the locking mechanism or even |
|
|
|
|
| |
provide a non-functioning lock for the thief to waste time on. |
|
|
|
|
| |
|
|
|
|
|
| |
|
|
|
|
|
|
| |
|
|
|
|
|