MODERN COMBINATION LOCK Inventor Joseph Loch 1866

THE BASIC MODERN COMBINATION LOCK works by at aching a combination dial to a spindle that controls a series of wheels.

AI-Jazari, author of Book of Knowledge of Ingenious Mechanical Devices, provided plans for a combination lock—along with a mechanical clock powered by water and weights—in 1205 A.D. But German inventor Joseph Lo-ch is usually cited as the man who crafted the first modern iteration for Tiffany & Co., which had plenty worth locking up.

When the notches in each wheel line up with the others, the bolt that secures the lock is released.


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