How Was The Door Lock Invented

It consisted of the wooden post that was affixed to the door and a horizontal bolt that slid into the post.

How was the door lock invented.

The earliest known lock and key device was discovered in the ruins of nineveh the capital of ancient assyria. It was designed by the pin tumbler mechanism but used a circular keyway. Locks with keys have also existed for much of history. Locks such as this were later developed into the egyptian wooden pin lock which consisted of a bolt door fixture or attachment and key when the key was inserted pins within the fixture were lifted out of drilled holes within the bolt allowing it to move.

Early keys and locks were larger than today and having a key meant being in a position of trust. In 1857 james sargent invented the world s first successful key changeable combination lock. As everest and yale launch a revolutionary new smart lock we look back at the history of locks and keys from wooden locks in ancient egypt to 21st century keyless locks. In 1873 sargent patented a time lock mechanism that became the prototype of those being used in contemporary bank vaults.

Early locks may have been made of wood. What separates the egyptian lock from later inventions is the fact. Locks have been around since man first decided to keep his belongings to himself. A number of improved key based bank locks followed.

It s believed but not proven that they existed even earlier than that. Often instead of locking a door people kept valuable possessions in chests or boxes which could be locked. Yale then developed the first combination lock eliminating the need for a key. He improved on his father s design for small key and tumbler locks and invented the first modern cylinder lock.

History of mechanical locks started over 6 thousand years ago in ancient egypt where locksmith first managed to create simple but effective pin tumbler lock that was made entirely from wood. His lock became popular with safe manufacturers and the united states treasury department. Next the inventor turned his attention to general use locks. The oldest preserved door locks we have ever found belong to the ancient egyptians and date back to at least 2000 b c.