WebThe choice of models was very limited due to smart key options. I didn't want smart key system so I could master the bottom lock to use 2 different keys for the family and maid and family key would also work the deadbolt, the other key (maid's) key won't be able to unlock the deadbolt. We always lock both locks except when the maid is coming. WebSep 22, 2011 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ...
Animation How Pin Tumbler Locks Work - YouTube
WebJan 24, 2013 · The animation shows a so-called pin-tumbler lock, in which small pins line up with grooves in a key before the key can turn. The technology isn't exactly new. An article published in the … WebOct 9, 2009 · Normal doorknob locks have five pairs of pins which interact with a single key to lock or unlock the door. The pins are placed in pairs with one on top of the other. Each pair rests in a shaft which is drilled through the cylinder and the housing around the cylinder. Springs at the top of the shaft keep the pins in place. how deaf people hear music
Kwikset Cove Satin Nickel Keyed Entry Door Knob and Single …
WebHow locks work. From site: http://www.carloclerici.it The pin tumbler lock, sometimes called the Yale lock, is a lock mechanism that uses pins of varying lengths to prevent the lock... WebJan 24, 2013 · An article published in the November 1946 issue of Popular Science describes how it all works: "As the key turns, the pins divide along the edge of the cylinder, permitting it to revolve... When … WebMar 4, 2016 · How Does a Pin Tumbler Lock Work? The pin tumbler lock mechanism is most commonly seen in a cylinder lock. The lock mechanism fits inside a plug within this cylinder, and the plug must be rotated in order to unlock the door. how deaf people experience music