Archive for the ‘History of locks’ Category

The History of the Lock

Thursday, May 21st, 2009

The history of the lock is a very interesting one. The oldest lock discovered by archaeologists at the Khorsabad Palace ruins near Nineveh. The lock was approximately 4000 years old and it was a forerunner to the pin and tumbler type lock and was used commonly in Egyptian times. The lock used a large wooden bolt to secure a door which had a slot with several holes in its upper surface. The holes were filled with wooden pegs that prevented the bolt from being opened.

Also credited with the beginnings of the common day lock are the Romans. Although many are no longer in existence due to the iron metal used rusting and corroding, their keys still exist as they were typically fashioned as rings or necklaces due to the lack of pockets in clothing. Using notched bolt work inside iron cases, the Romans also utilized keys. One type of Roman lock was the warded bit key lock that can still be found in older homes today. Another common Roman lock was the spring loaded lock. During the time of Julius Caesar, locks were in great demand by politicians and successful merchants.

The first major attempt at improving the security of the lock was made by Robert Barron in England in 1778. He patented the double-acting tumbler lock. Over time, different locks were created by famous locksmiths such as Joseph Bramah, James Sargent, Samuel Segal, Harry Soref and many more. Without some of these great locksmiths we would not enjoy the security and privacy that our various locks provide us with.