Full Answer
What is a tubular latch on a door?
Firstly, what is a tubular latch? A tubular latch is an item of ironmongery which is usually morticed* into a door, which allows the door to be opened and closed by means of a Door Handle or Door Knob. The word ‘latching’ is the act of a door being closed, and remaining held shut.
What is a tubular mortice latch?
The Tubular Latch is a simple closing device commonly used on internal doors where no lock is needed. The Tubular Mortice Latch is an evolution from a Mortice Lock, downsized so that it can be fitted with much less effort, and with minimal drilling and cutting to the door required.
What is a doorknob latch?
Door latches are a general type of latch used for keeping doors and gates closed. They can be in the form of a sliding bolt that prevents the door from swinging open, or a hook for maintaining a closed position for both sliding and swinging motions. An example of a typical door latch is a doorknob.
What size tubular latch do I need for a door knob?
The larger sizes of latch are usually used for Door Knob furniture. We would usually recommend using the 102mm (4”) Tubular Latch or larger for a door knob, but the 76mm (3”) can be used as an absolute minimum.
What is tube latch?
A tubular latch is an item of ironmongery which is usually morticed* into a door, which allows the door to be opened and closed by means of a Door Handle or Door Knob. The word 'latching' is the act of a door being closed, and remaining held shut.
What is the difference between tube latch and mortise?
A tubular lock has its latch bolt and dead bolt in two separate holes. In a mortise lock, both bolts are encased in a steel box that fits in one hole.
What are the different types of door latches?
What Are the Different Types of Door Locks?Knob Locks. Knob locks are the most common type of door lock available and the chief security method for most doors. ... Cam Locks. Cam locks consist of a fastener with an attached arm, or cam, that rotates to lock. ... Deadbolt Locks. ... Padlocks. ... Mortise Locks. ... Keypad Locks. ... Smart Locks.
How does a tubular door lock work?
The design of a tubular lock is similar to the pin tumbler lock, in that there are several stacks of pins. The key is a cylinder shape with notches cut around the outer or (rarely) inner edge. Each of these notches depresses a single pin inside the lock to a specific height allowing the lock cylinder to turn freely.
When did they stop using mortise locks?
Mortise locks were typically used before 1950, and tubular locks after 1950.
What is the most secure cylinder lock?
SS312 Diamond was the first test standard developed to counter lock snapping and is deemed to be the highest level of approval for cylinders.An example of SS312 Diamond Approved Euro Lock Cylinder from Avocet Hardware Ltd.Brisant Ultion is a SS312 Diamond Approved Cylinder.More items...
What kind of latch do I need?
An easy way to choose which latch you need is to measure from the edge of your door to the centre of your door Stile. Choose the Backset which is closest to this measurement, and the handle will be as central as possible to the Stile on your door.
What is the latch called on a door?
BoltBolt or Latch The lock engages a bolt inside the door. This piece of metal extends from the door into the frame and holds it closed. There are two main styles of latch (or bolt)—a spring bolt and a deadbolt.
Are all door latches the same?
Door latches will vary by manufacturer, however, the anatomy of a typical door latch found in homes or businesses contains three essential parts: the bolt, the box, and the strike plate.
Are tubular locks easy to pick?
Commonly thought to be more secure and more resistant to picking than standard pin and tumbler locks, I've found that with the help of a tubular lock pick, they're much easier and faster to pick.
How do you open a tubular lock without a key?
2:096:37How to Pick a Tubular Lock (Basics) - YouTubeYouTubeStart of suggested clipEnd of suggested clipInsert the pic into the lock slowly allowing the picking needles to map to the corresponding pinMoreInsert the pic into the lock slowly allowing the picking needles to map to the corresponding pin stacks slowly apply turning torque to the pic and the lock should pop.
What is the difference between a cylindrical lock and a tubular lock?
Tubular Lock Major Components: In a cylindrical lock, the mechanism for retracting the latch bolt is part of the lock chassis. The latch is comparatively simple and connects to the outside lock chassis at the periphery. In a cylindrical lock, the inside and outside knob spindles are independent of each other.
What is the difference between a mortise lock and cylindrical lock?
With a mortise lock you have to cut out part of the door to install the lock correctly. There's none of that with a cylindrical lock. In fact, on average, a cylindrical lock only takes between 15 and 30 minutes to install. A mortise lock takes much longer.
What is a mortise style lock?
A mortise lock (also spelled mortice lock in British English) is a lock that requires a pocket—the mortise—to be cut into the edge of the door or piece of furniture into which the lock is to be fitted.
How does a mortice latch work?
One of the most readily available and secure types of lock is the mortice lock. These earned their name thanks to the pocket (or mortice) that the bolt slots into, which is cut into the internal face of the doorframe. When the bolt is in the mortice, the door is unable to move and is securely locked.
What is the difference between cylindrical and tubular locks?
Tubular Lock Major Components: In a cylindrical lock, the mechanism for retracting the latch bolt is part of the lock chassis. The latch is comparatively simple and connects to the outside lock chassis at the periphery. In a cylindrical lock, the inside and outside knob spindles are independent of each other.
How many cross bores do you need for a mortise latch?
It’s important to note that a mortise latch and a tubular latch require two, very different door preparations. Tubular latches require 2 1/8” diameter cross-bores in the door, and 1” edge-bores. Mortise locks require a deep, rectangular pocket in the door.
What is a mortise latch?
Most mortise latches have a passage latch operated by a door knob, and an integrated deadbolt operated by a skeleton key. Alternately, some mortise latches have a thumb-turn on the inside of the door, instead of a skeleton key, to operate the deadbolt.
How long have mortise latches been around?
Residential mortise latches have been around for over a hundred years and are frequently seen in older homes. Many people enjoy mortise latches for their vintage style. Since they also have longevity, it’s common for homeowners to use them for decades.
How big is a mortise pocket?
Although there is no standard length, size, or backset for these locks, most mortise locks have a 5 to 6-inch pocket in the door. Nostalgic’s “universal” mortise locks will fit most interior doors with legacy mortise locks, with little or no modification.
When did tubular latches become popular?
Tubular latches became popular in the early 1950’s. And, as their name implies, the latch mechanism itself is tubular in shape. These latches were initially designed for residential use, but manufacturers later modified the design for commercial use (frequently referring to them as “cylindrical locks”). The vast majority of homes built in the last ...
Does Nostalgic Warehouse sell mortise locks?
However, these older mortise locks do not provide adequate security for an exterior door, as they are easily picked. Nostalgic Warehouse is one of very few door hardware companies that continues to sell new mortise locks.
When was the Old House Journal founded?
Founded in 1973, Old House Journal is the original authority when it comes to old-house restoration, traditional house styles, period kitchens, bath & kitchen restoration, DIY projects, gardens & landscaping, and more-- from Colonial and Victorian through Arts & Crafts and Mid-century Modern homes.
How to measure for latch size?
An easy way to choose which latch you need is to measure from the edge of your door to the centre of your door Stile. Choose the Backset which is closest to this measurement, and the handle will be as central as possible to the Stile on your door. We generally recommend that a 76mm Overall Latch Size is ordinarily the best size for most lever handles. However the shorter 64mm Overall Size should be used where the door is glazed, to minimize the risk of hitting the glass rebate when drilling to fit the latch.
What is double sprung door latch?
The term 'Double Sprung' means that the latch has a separate soft spring for the tongue action, allowing a gentle closing action to the door. The follower works on a separate spring with a heavy action, to ensure that heavy levers and unsprung door knobs are always returned to the horizontal position.
What is tubular latch?
The Tubular Latch is a simple closing device commonly used on internal doors where no lock is needed. The Tubular Mortice Latch is an evolution from a Mortice Lock, downsized so that it can be fitted with much less effort, and with minimal drilling and cutting to the door required.
What happens if the latch is too narrow?
If the hole is too narrow and the Latch only just fits inside, then the case body can be compressed and particularly the spring mechanism, which means over time the spring will fail and the latch will stop working. Make sure that the hole allows a couple of mm spare around the latch case.
What is the size of a backset?
The industry standard Backset sizes are: 45mm, 56mm, 82mm, 107mm and 130mm. So the following rule generally applies;
What is the best finish for a door latch?
The better quality latches have a range of finishes in Polished Brass, Polished Steel, Satin Steel, Florentine Bronze, Power Coat Black.
Where are the bolt holes on a tubular latch?
These are the holes in the latch case located on either side of the Follower. These Fixing Holes are designed to allow the fixing bolts, which are often supplied with door handles, to pass through the door and the latch mechanism so that the handles can be bolted together. The hole at the rear of the Latch is just a cutaway to the rear of the case.
Chapter 1: What are Latches?
Latches are mechanical components that allow the temporary joining of parts that are moving relative to each other. They are actuated to release the coupling and allow the two parts to separate. Latches are mostly seen on doors and enclosure openings.
Chapter 2: Door Latch
Door latches are a general type of latch used for keeping doors and gates closed. They can be in the form of a sliding bolt that prevents the door from swinging open, or a hook for maintaining a closed position for both sliding and swinging motions.
Chapter 3: Types of Latches
A simple latch is composed of a base, a bolt, and a box or hole. The base which contains the bolt is typically installed on the door. The box, on the other hand, is installed on the frame. Sliding or moving the bolt into the box activates the latch (such that one end of the bolt holds the door while the other holds the frame).
Chapter 4: Cam Locks
Cam locks are cam latches combined with a key instead of an ordinary knob. Their main feature is the added security provided by the lock. The base of the cam is a cylinder fitted into a hole on the door or cabinet. On the lateral side of the base, external threads are cut. A nut mates with these threads for holding the cam lock firmly on the door.
Chapter 5: Design Features and Specifications
Latches can have different design features which makes them more suitable for a particular application. They can be made with different types of materials, finishes, thicknesses, and other features. Summarized below are some of the general features and specifications of latches.
Conclusion
Latches are mechanical components that allow the temporary joining of parts moving relative to each other. They are actuated to release the coupling and allow the two parts to separate.
