Night latch
 | This article needs to be updated. (November 2023) |
A night latch (or night-latch or nightlatch) is a lock that is fitted on the surface of a door; it is operated from the exterior side of the door by a key and from the interior (i.e. "secure") side of the door by a knob.[1][2][3]
Overview
Night latches are usually rim locks[4] and are available as deadlocking (automatically locks once shut) and non-deadlocking versions.
Historically, such locks were intended for use at night-time, hence the name.[5] The keyless egress that they offer is a valuable fire safety measure, but may be a security risk if breaking a glass panel (usually in the door) or a nearby small window allows an intruder to reach the knob inside and open the door from the outside.
References
- ^ "Definition of NIGHT LATCH". www.merriam-webster.com.
- ISBN 9781626366589– via Google Books.
- ^ Mitchell, John Ames (26 September 2018). "Life". Life – via Google Books.
- ISBN 9780398084356– via Google Books.
- ISBN 9780486145921– via Google Books.
Sources
- Streeter, Donald (26 September 1973). "Some Signed American Iron Rim Locks". Bulletin of the Association for Preservation Technology. 5 (2): 9–37. JSTOR 1493393.
- ProQuest. "How much security is enough? - ProQuest". Retrieved 2018-09-26 – via ProQuest.
- Harrington-Lynn, J.; Pascoe, T. (1995). "A strategy for security of buildings". A strategy for security of buildings - IEEE Conference Publication. Ieeexplore.ieee.org. pp. 189–196. S2CID 62740777.
- "NCJRS Abstract - National Criminal Justice Reference Service". www.ncjrs.gov.
- Anonymous (26 September 1961), Code of Practice for means of escape in the case of fire at houses in multiple occupation, hdl:1842/4859
- ProQuest. "Simple security measures: how to safeguard your practice - ProQuest". Retrieved 2018-09-26 – via ProQuest.
External links
| Fundamental concepts |  | |
|---|---|---|
| Components and hardware | ||
| Keys | ||
| Mechanical locks | ||
| Electronic locks | ||
| Other lock types | ||
| Lock picking | ||
| Security alarms |
| |
| Miscellaneous | ||
