|
AUTOMATIC DEADLOCKING |
A device fitted to a lock where closing
the door or gate reverts the bolt into a deadlocked state. |
|
BOLT |
A device usually made from brass or steel
used to secure a door or gate to its frame. |
|
DEADBOLT |
A bolt which is put into the locked and
unlocked position by the key only. The exception to this is a
fire escape lock which can be unlocked from the inside, usually using a
handle. |
| DEADLOCK |
A lock which is locked and unlocked by the
key only. The exception to this is a fire escape lock which can
be unlocked from the inside, usually using a handle. |
|
DETAINER |
A unique, alternative to a lever which
offers a greater number of key variations, particularly when the key
is master keyed. |
|
DIFFERS |
The number of different key
combinations that are possible with a particular locking
mechanism. |
| DUAL
CONTROL |
A lock which
can be locked/unlocked both electronically & mechanically. |
|
ESCUTCHEON |
A protective plate around a
key hole. Larger escutcheons support the key as it enters the
lock ensuring correct alignment with the mechanism. |
|
FACE PLATE |
Plate or outer forend which is the
only part of a fitted mortice lock that is visible. |
| HOOK
BOLT |
A lock with a
hook shaped bolt used for securing sliding doors. |
|
HORIZONTAL |
Lock which has
its key hole and handle on the same horizontal line. |
| LATCH |
A bolt which
is with drawn by the handle, not the key. |
|
LEVER |
A moving obstruction in a lock activated
by the key. Use of the wrong key will either over-lift or
under-lift the lever rendering the lock inoperable. The more
levers there are the greater number of key combinations. |
| LOCKING
LATCH |
A latch which
can be locked and withdrawn by the key as well as being withdraw by
the handle when in the unlocked condition. |
| LOCKS
TO PASS |
Any number of
locks made to one key combination. |
|
MASTER KEYING |
An arrangement which allows
one key to operate a number of differing locks. |
| MORTICE |
Fixed
into the edge rather than onto the face of the door. |
| REVERSIBLE
LATCH |
A latch which
can be reversed to suit opening in or opening out situation. |
|
SURFACE MOUNTED |
Fixed onto the
face of a door. |
| SINGLE
SIDED |
A lock operable
from one side only. (Such locks are handed) |
| SUITED
LOCK |
A lock(s) which
is one of a number which is made to operate by more than one key combination
i.e. Master, Servant. |
|
THROW |
The distance a bolt travels
from the unlocked to the locked position. Some locks may have
the bolt 'Double Thrown' by an extra turn of the key or a second key
called the 'Doubles Key'. |
|
VERTICAL |
Lock which has
its key hole and handle on the same vertical line. |
