The night latch holds the door closed with a latch which can often be deadlocked into position. The latch’s screw prevents the cam on the mortise cylinder from turning far enough to allow the key to be released from the core (or plug) while the handle is locked.
Why is it called a night latch?
Night latches are usually rim locks 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. The keyless egress that they offer is a valuable fire safety measure.
Are night latches safe?
Is a NightLatch Secure? Secure – A nightlatch is only truly secure if it is BS3621 Approved OR is fitted alongside a 5 lever Mortice Deadlock that conforms to BS3621. Not Secure – A nightlatch is NOT secure if you are using a standard Nightlatch (NON-BS3621) as the ONLY lock on your front door.
How high should a night latch?
Typically, a night latch mounts on the door 48 inches from the floor. Mark the desired height at the lock side of the door with a pencil.
What is a night latch on a saddle?
How to Rig a Night latch: A night latch is a safety strap attached to a saddle to help the rider hold on and stay on a contrary horse. This contraption was used as part of old-time traditional cowboy bronc gear and can still come in handy.
When was the night latch invented?
NIGHT-LATCH. Specification of Letters Patent. Patented Oct. 22,1912.
Can you lock night latch from the outside?
The definition of a night latch is spring lock that can be opened from the outside with a key only and the inside by turning either a knob or short handle. This type of lock never needs to be locked with a key as just pulling the door closed will engage the latch into the strike plate.
Can you lock a night latch from inside?
A night latch is a lock that can only be opened with a key from the outside and, as long as its not a double locking version, it can always be opened from the inside. The latch can be held open with the use of the snib or it can be locked closed with the snib stopping key operation from the outside.
Why do people latch traps at night?
A night latch is a foothold trap trigger modification designed to make the trigger more sensitive and to easily allow the setting of a hair trigger.
Should I lock my front door at night?
Doing so allows us to feel safe and secure from possible intruders as we sleep. Yet, studies show that millions of people still do not lock their doors at night despite the obvious risks. It’s highly recommended that you lock your house at night because it deters opportunistic burglars and potential attackers.
What is a double locking night latch?
The Double Locking Nightlatch is a face fitted, non handed design enabling both left and right handed operation; and the striker is designed with a 3 hole fixing for additional strength and security.
Are night latches a standard size?
Generally, night latches will come in two sizes. 60mm is commonly used for conventional doors, whereas those using glass panel doors will often choose a 40mm back set.
How do you measure a night latch?
The size of a Night Latch is measured from the centre of the keyhole to the edge of the door where the night latch should finish.
How do I measure my backset for night latch?
Exactly the same as with all locks, the backset measurement is the distance from the front face of the lock, to the centre of the keyhole and/or follower (on multipoint locks these are always in line so both should measure the same).
Where are Martin saddles made?
JCM Saddles are designed & created to the highest US standards in Greenville, Texas using either Hermann Oak hides for our US saddle lineup or top quality imported Brazilian or mystery cowhides for our Economy lineup.
