What fundamental mechanism, first seen in Egyptian devices, did Linus Yale Jr. successfully refine into a cylinder lock in 1861?
Answer
The pin-tumbler mechanism
Linus Yale Jr.'s 1861 patent successfully refined the original Egyptian pin-tumbler concept into a modern cylinder lock, using small metal cylinders acting directly on the plug.
Related Questions
When did the earliest recognizable lock and key system originate?What material and mechanism characterized the initial lock designs in ancient Egypt?Which ancient civilization is often credited with creating the first locks made entirely of metal?What was the dominant locking design used across Europe for centuries following the fall of the Roman Empire?How did the warded lock function differently from the earlier pin-tumbler system?Why were warded locks susceptible to being picked during the medieval period?Who patented a high-security cylinder lock incorporating a spring-loaded mechanism in 1778?What innovation did Jeremiah Bramah's Chubb detector lock introduce to security?What fundamental mechanism, first seen in Egyptian devices, did Linus Yale Jr. successfully refine into a cylinder lock in 1861?Which of the following is cited as a modern electronic access control method, moving away from physical key manipulation?