Locks were born out of a burning necessity to secure possessions, with evidence of their existence going as far back as 6000 years ago! Interestingly enough, the first locks were made from a series of rope knots and have nothing in common with the modern-day technologically advanced locks – except that they shared the same purpose of protecting your precious property from theft.
The oldest known mechanical locks were made by the technologically-advanced Egyptians who created them entirely out of wood. The modern-day locks, however, are all made up of metal and bear little resemblance to their ancestors. The spectrum of locks available today varies in their designs and the setting in which they would be used. The types of locks found on wooden doors differ from the designs applied on glass doors or windows.
While glass doors are usually meant to be locked from the inside, you might be using them as an entry point into your home, in which case you would need a lock to be installed from the outside. There are so many types of design-oriented, stylish locks available in the market for glass doors, that you might wonder which one to choose. Here is a simple guide:
Deadbolt locks – These are great for both single and double glass doors and do well on cabinets too. The mechanism involves a cylinder that runs directly through the door with a keyhole on the outside. When the key is turned, a bolt shoots into the door frame (or the adjoining door, in case it’s a double door), locking the door. From the inside, usually, a knob is sufficient to lock or unlock the door. Deadbolts are reliable on exterior doors.
Cam locks – These work well with hinged doors and require a hole to be bored through the glass. It consists of a cylindrical base with a keyhole and a metal piece that’s placed perpendicular to the base, known as the cam. When the key is turned, the cam turns up- or down as the case may be.
Combination locks – They are effective on both sliding and hinged doors. They require a sequence of numbers to be unlocked and can come as single dial, multiple dial or electronic keypads.
Ratchet locks – These are meant for sliding glass doors requiring a key to open. The lock comes in two parts and you need to slide the cylinder in position and turn the key to lock the door. It’s suitable for glass doors up to 13mm thick.