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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Lock_and_key
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1992-09-04
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476b
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14 lines
Lock and keys are devices that provide
security, usually fitted to a door of some
kind. In 1778 English locksmith Robert
Barron made the forerunner of the mortise
lock, which contains levers that the key must
raise to an exact height before the bolt can
be moved. The Yale lock, a pin-tumbler
cylinder design, was invented by US locksmith
Linus Yale, Jr, in 1865. In later years more
secure locks were invented, such as
combination locks.
Subject by: George Sweeney