| Anti-lift Device |
A device which prevents a door
or window from being lifted in its aperture, where this lifting would
decrease the effectiveness of a lock or enable the door/window to
be removed. |
| Barrel Bolt |
A device where a shoot runs in a guide
attached to a backplate, the shoot being provided with a knob or similar
for operation by hand. |
| Bolt (1) |
The part of the lock which
provides the engagement in the keep by protruding from the lock case. |
| Bolt (2) |
A device where a shoot runs
in a guide attached to a backplate, the shoot being provided with
a knob, key or similar for operation. This may be a barrel bolt, a
mortice bolt, rim bolt or security bolt. |
| Certified |
A product subjected to a testing
and ongoing audit programme by MLA approved organisation. |
| Deadlock |
A lock in which the bolt is
fixed in its locked position such that the bolt cannot be pushed back
into the lock using normal pressure. |
| Escape Lock |
A lock that can be opened (even
when locked) from the inside by a single action without use of a key.
|
| Escutcheon |
A device which fits onto the
door or window around a lock keyhole or handle. This may be for decorative
purposes or to increase the security of that device. |
| Flush Bolts |
A bolt fitted to the first
closing door of a double door set where the opening mechanism of the
bolt is covered by the second closing door. |
| Hinge Bolts |
A hinge bolt (or dogbolt) is a fixed projection on the
hinge side of the door or window. The projection engages into a keep
when the door or window is closed.
|
| Latch |
A device which holds a door
or window shut but can be released without the use of a key. |
| Lock |
A device which holds the door
or window shut and which needs a key to release it. |
| Mortice Lock/Bolt |
A lock/bolt where its body
is fitted into a hole (or mortice) cut into the edge of the door or
window. |
| Multipoint Lock |
A lock in which two or more
bolts are thrown by means of a single action.
|
| Nightlatch |
A lock which automatically
locks when the door is shut. Usually manually operated from inside
and by a key from outside. |
Night Vent or Ventilation Position
|
A position in which the door
or window can be locked whilst slightly ajar. |
| Padbolt/Padbar |
A barrel bolt or bar which
is locked by means of a padlock.
|
| Rim Lock/Bolt |
A lock/bolt which is surface
mounted on the door or window. |
| Security Bolt |
A mortice or barrel bolt which
can only be withdrawn by the use of a key. |
| Security Screw |
A screw designed so that it
either cannot be removed when fixed or which requires a restricted
access tool to remove it. |
| Striking Plate |
This refers to the manufacturers
striking plate appropriate for the lock fitted and with which the
lock was certified. |
