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The lock company, Slaymaker, Barry and Company, was founded in 1888 by Samuel R. Slaymaker and John F. Barry of Connellsville, Pennsylvania.Samuel Slaymaker had become interested in switch and signal locks while working for the Pennsylvania Railroad as a civil engineer.
Take the key from the lock; The mechanism makes it impossible to forget to lock the door without also forgetting the key in the lock. Also, locking an open door is usually not possible. Invented by the Berliner locksmith Johannes Schweiger, [2] the Berlin key was massively produced by the Albert Kerfin & Co company starting in 1912. [3]
Locks are usually re keyed to build master-key systems, make a set of locks share a common key, or to eliminate compromised keys. [2] [3] [4] Sometimes worn pins are replaced with new pins if the old pins become too short to reach the shear-line. [5] The shear-line is the thin line shared by the lock plug and its cylindrical housing. If a pin ...
The Hall's Safe & Lock Company was an American [1] manufacturer of locks, safes, and bank vaults throughout the second half of the 19th century.. Incorporated by Joseph L. Hall in 1867, the Hall's Safe & Lock Co. of Cincinnati, Ohio quickly grew to become the largest [2] safe and vault manufacturer in the world.
The only building of Eagle Lock Company that was not altered after the fire of 1975. The Eagle Lock Company (established 1833) was, at one time, the largest trunk and cabinet lock maker in the world. It was based in Terryville, Connecticut. The Eagle Lock Company was at the forefront of padlock security at the time.
The Bramah lock used a cylindrical key and keyhole, as does the current lock. The end of the key has a number of slots of different depths which, when inserted into the lock and pressed against spring tension, would depress a number of wafers to a specified depth and enable the key to turn and open the lock.
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