Famous Locksmiths
See also: Locksmithing- Robert Barron patented a double-acting tumbler lock in 1778, the first reasonable improvement in lock security.
- Joseph Bramah patented the Bramah lock in 1784. It was considered unpickable for 67 years until A.C. Hobbs picked it, taking over 50 hours.
- Jeremiah Chubb patented his detector lock in 1818. It won him the reward offered by the Government for a lock that could not be opened by any but its own key.
- James Sargent described the first successful key-changeable combination lock in 1857. His lock became popular with safe manufacturers and the United States Treasury Department. In 1873, he patented a time lock mechanism, the prototype for those used in contemporary bank vaults.
- Samuel Segal invented the first jemmy-proof locks in 1916.
- Harry Soref founded the Master Lock Company in 1921 and patented an improved padlock in 1924 with a patent lock casing constructed out of laminated steel.
- Linus Yale, Sr. invented a pin tumbler lock in 1848.
- Linus Yale, Jr. improved upon his father's lock in 1861, using a smaller, flat key with serrated edges that is the basis of modern pin-tumbler locks. Yale developed the modern combination lock in 1862.
Read more about this topic: Lock (device)
Famous quotes containing the word famous:
““Why visit the playhouse to see the famous Parisian models, ... when one can see the French damsels, Norma and Diana? Their names have been known on both continents, because everything goes as it will, and those that cannot be satisfied with these must surely be of a queer nature.””
—For the City of New Orleans, U.S. public relief program (1935-1943)