A device that is mechanical and electronic is known to be the lock that can be opened through only the outside of the door. And then the key is nothing but a device that is used to operate the lock is known that is to lock or unlock the door. A small piece of metal or blade is typically known to be the key. The blade slides into the keyway and that helps to lock or unlock. Uniquely the lock and key usually get into the operation of the lock. To access the locked area the key is used as a security token. So to gain access one should have the appropriate key to open the lock. Not only are the key locks but also there the keyless lock also available in the market. There are two different types of keys are available in the more complex mechanical lock and key system that is known to be the master key that aids to open the lock. In the common base, the metals like brass, nickel silver, steel, and then the plated brass are used in the production of the lock and key.
Antiquity of the lock and key:
In the ruin of Nineveh which is the capital of ancient Assyria, the former lock and keys were produced. After some time it was developed as a wooden pin lock in the Egyptian history that consists of a bolt that is attached with the as a door fixture and key. The pins within the fixture were lifted over the drilled holes within the bolt when the key was inserted into the lock and that allows moving out. The pins fell apart away when the key was removed from the lock that would help to prevent the moment. In the western world, the warded lock is known to be the most recognizable lock and key design that also present from antiquity. In between the year, 870 to 900 the all-metal lock and key were introduced and that is contributed to the attribution of English craftsmanship. In the 6th century BC, Theodorus of Samos has invented the key for the lock. Metal locks and keys were produced by the Romans and the wards have provided the system of security.
The modernism of the lock and key:
In the late 18th century, with the beginning of the industrial revolution with the increasing complexity and sophistication, the locks and keys were manufactured in the development of precision engineering and then the standardization of the components. There is a set of levers that are present in the lock to prevent the bolt from the moving lock that is known to be lever tumbler lock that was invented in the year 1778 by the inventor named Robert Barron. In the year 1818, by the help of Jeremiah Chubb, the lever tumbler lock was improved greatly in its operation. Still the present day we are using the lever tumbler lock for the safety process. With an integral security feature, Jeremiah Chubb has developed the lock into a Chubb detector lock. The unauthorized access could make frustration to access the attempts and that would make indication or some alert to the owners of the lock about the interpretation of some other person into the lock.