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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.
Padlocks with modular locking mechanisms can often be taken apart to change the tumblers or to service the lock. Modular locking mechanism cylinders frequently employ pin, wafer, and disc tumblers. Padlocks with modular mechanisms are usually automatic, or self-locking (that is, the key is not required to lock the padlock)
Products included trunk and cabinet locks, as well as high quality security-grade padlocks, and, in the early twentieth century, screw-machine products. The company experienced precipitous growth with the onset of the First World War , and even greater expansion during the Second World War , nearly doubling the number of employees to 800.
Pocket knives, hand tools, railway locks, and advertising items from Keen Kutter are of interest to many collectors. Jerry and Elaine Heuring, authors of Collector's Guide To Keen Kutter, have documented current values and general information in their books.
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Download as PDF; Printable version; In other projects Wikimedia Commons; ... This is the full collection of all padlock icons available for use for page protection icons.
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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.