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