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Door chain. A door chain, security chain, or security door chain or chain door interviewer [1] consists of a small chain attached to the door frame, which attaches to a track on the door for security purposes. It is a type of lock that is often used along with other types of locks to secure a door. [2] They are commonly used on hotel and motel ...
Door chain - A device to secure door opening; Door closer – Mechanical or electromagnetic device to close an open door (in the event of a fire) [3] Door opener - Automatic door opening device activated by motion sensors or pressure pads; Door damper – A hydraulic device employed to slow the door's closure; Door knocker
Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]
Electronic cam locks are an alternative to mechanical cam locks. The appearance of the electronic cam lock is similar to the mechanical cam lock, but it is different in the lock cylinder. The keyhole of a mechanical cam lock is usually the same as an ordinary padlock. A physical key is used to unlock the lock.
A lock and key is a pair of devices used to secure an object or location from unauthorized access. Lock and Key or Lock & Key may also refer to: Arts, entertainment ...
A Wordlock letter combination lock.. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an ...
In March 1844, Philip Corbin began working for the Matteson, Russell & Erwin Company (later Russell & Erwin). In the fall of 1844, Corbin worked for Henry Andrews, who had secured a contract to make locks for North & Stanley. At the Henry Andrews Company, Corbin apprenticed and learned the art of lock making.
A door may be held open with a device such as a door holder [1] or door closer, [2] which can automatically release the door upon the sound of a fire alarm and protect a building in the event of a fire. An ultraviolet door handle attendant can be installed to sterilize the existing handle. Automatic door handle sanitisers are used mainly in ...