Wednesday, August 24, 2011
This type of block is still in use in some parts of the world. Puerto Rico continued use of this system. The disadvantage is the lock that the vandal can push the rope into the hole - the ancient equivalent to put the glue trap.
Then, the lock was invented in China ready. [Citation needed] In the Middle Ages, reached Europe. This lock is still used in modern times, where security requirements are not high and the cost is a factor. This block has become the most recognizable Lock / Key Design in the Western world. Puzzle lock used to hide the locking mechanism or even a lock that does not work for the thief to waste time.
In early 1900-century, a lock pin of wood with a touch of wood was discovered in Egypt and is believed to have been used in 250 BC Improvements in early pin locks included increasing the number of pins to increase security and change the direction of the legs, so the key to unlocking force instead of a rope, thus establishing the principles of the modern lock pins.
Posted by Grace