What is the function of a lock?
When outside lever is locked, latch bolt is retracted by key, or by operating key and outside lever from outside or by operating inside lever. Classroom security locks allow control of the outside lever via key cylinders on both the inside and outside of the door.
What is the function of a mortise lock?
Mortise locks are installed into a rectangular pocket cut out of the edge of a door. The term mortise refers to a hole or recess cut that allows the lock to be inserted. Mortise lock bodies look much different than cylindrical locks and allow for more working mechanics inside.
What is Nightlatch function?
A Night Latch (Yale Lock) is a lock commonly found on home front doors; they are mounted to doors that open inwards and mounted to the inner surface of the door. When the door is closed the night latch automatically latches the door shut.
What is classroom function lockset?
A classroom function deadbolt prevents an un- authorized person from projecting the deadbolt to secure a room without permission but pro- vides for safe egress by allowing the thumbturn to retract the deadbolt if someone is accidentally locked inside the room by someone projecting the bolt with a key.
How do lock sets work?
Locksets serve a variety of functions and may be application specific. The bolt is retracted by the grip on either side unless locked by the outside key. The bolt is retracted by the handle on either side. The door can always be opened from the inside but can be locked from inside or outside.
What is a deadbolt latch?
Deadbolt locks: The deadbolt lock has a bolt that must be activated by a key or. thumb turn. It offers good security because it is not spring activated and cannot be. “jimmied” opened with a knife blade or credit card. For this reason it is best to install.
What is the difference between a passage lock and a privacy lock?
The main types of door functions are Passage (doors that don’t require locking), Privacy (a door that can be locked by a button on the inside), Dummy (has no mechanical latch and acts only as a pull), and Interior Mortise (door with an active latch with skeleton key lock).
What is UL function door?
UL develops standards by which they test door hardware to verify that it meets certain safety requirements during use, or in the event of a fire or other circumstances. Not all locks are UL listed. In fact, most residential locks are not.
What is a storeroom lock?
Storeroom locks are used when the outside lever should be locked at all times. A key is used to retract the latchbolt and open the door; when the key is removed the door is locked on the outside. There is no means to lock/unlock the door from the inside.