: a lock set whose parts are permanently combined and which can be applied to a door as a single unit.
In a mortise lock you can unlock both the latch and deadbolt locks by turning only one lever, but in cylindrical locks you have to lock and unlock the deadbolt and the latch separately.
Dormitory or Exit Lock function is defined as a lock where the latch bolt is operated by the lever from either side, except when the outside lever is made inoperative by a stop or mechanical means other than a key. The dead bolt is projected by the key from the outside and by turn from inside.
An interconnected lock is a knob or lever handle and a deadbolt linked together for simultaneous action. There are two types of interconnected lock mechanisms - standard tubular locks with interconnect, and mortise locks. Standard tubular locks are what most people will find on their doors at home.
An additional latch that automatically deadlocks the main latchbolt when the door is in the closed position. Term is usually used with mortise locks. Security Center.
The main types of door functions are Passage (doors that don't require locking), Privacy (a door that can be locked by a button on the inside), Dummy (has no mechanical latch and acts only as a pull), and Interior Mortise (door with an active latch with skeleton key lock).
When it is locked, a series of spring-loaded pins are engaged by the cylinder. This keeps the cylinder from turning. The Bolt: Also called the latch, the bolt engages the inside of the door. There is a piece of metal that extends from the door into the frame itself.
Entrance is gained by entering the access code provided into the alpha numeric keypad The Lock has a 'Holdback' facility which ,when operated, means that the door can be accessed via the handle without the need to continually enter the code, this is very useful when unloading a car or delivery.
In lock: Development of modern types. … in England, patented a double-acting tumbler lock. A tumbler is a lever, or pawl, that falls into a slot in the bolt and prevents it being moved until it is raised by the key to exactly the right height out of the slot; the key then slides the bolt.
The difference between a mortice deadlock and sash lock is that a mortice sashlock has a latch and bolt to open and close the lock. Where-as a mortice deadlock does not have a latch to open the lock.
Mortise lock cutouts may weaken the structure of the door– yet mortise locks are mysteriously stronger than bored cylindrical locks! They give more leverage and last longer than cylindrical locks, and their versatility allows more architectural conformity to existing security hardware.
5. Key Pins. The key pins are the bottom set of pins that always sit within the plug and do exactly as their name suggests to make contact with the key when inserted.
Master Pin: Usually a cylindrical shaped tumbler which is often flat on both ends, placed between the top and bottom pin to create an additional shear line. Rose: A circular or decorative trim plate attached to the door under the knob or lever.
When executed correctly, lock bumping is effective in nearly 90 percent of all cylinder-type locks produced today. Perhaps one of the most disconcerting aspects of lock bumping is that it can often go undetected, which means that your home can be broken into without any signs of forced entry.
Trim: Sometimes called a rose, the trim is a decorative plate attached to the door under the knob or lever.
The latch is the mechanism that slides into the enge of the door and retracts or protrudes with the turn of the door knob. The latch keeps the door closed and when the knob is turned allows the door to open. A lever or lever handle has the same functionality as a door knob, but has a different appearance.
A small electric motor turns a series of spur gears that serve as a gear reduction. The last gear drives a rack-and-pinion gearset that is connected to the actuator rod. The rack converts the rotational motion of the motor into the linear motion needed to move the lock.
Half dummy door knobs are non-locking door knobs that don't have to be rotated or turned when opening or closing a door. Instead, you simply pull on the door to open it. Half dummy door knobs are mainly used on double doors that close side-by-side, such as on cabinet and wardrobe doors.
Dummy door knobs are one-sided “fake knobs.” They're usually installed on the surface of a door or behind it. Some come in pairs so you can use them on double doors. These types of door knobs don't have any working parts. They're good for a shallow closet or small pantry and the interior of French doors.
Dummy Handles are usually used as decorative door pulls, often found on interior French doors, wardrobes, linen cupboards, or pantry doors. These are mounted to a door simply to give the door a handle to pull open without turning – they don't actually have any internal working parts.
Master key: The master key can open all locks you have in your residential or commercial property.
In short, a master key system allows one keys to open multiple different locks. At the same time, more than one key can open the same lock. In an office building, for example, each employee can have their own key which unlocks the door to their office.
The "do not duplicate" label on door lock keys is often used to prevent unauthorized duplication of the keys by non-authorized personnel. This is done primarily for security purposes in order to protect homeowners or businesses who share key access with different people.
Aside from the number of cuts on the key, it's simple to determine if a key is a 5-pin or 6-pin key at a glance: A 6-pin key has a longer keystop on top. A 5-pin plug can be repinned to accomodate a 6-pin key. In Figure 11, notice that the 0-position on the key is not used.
A gate carried forward in the seam thickness only (which must be over 3 ft or 0.9 m), with cut-throughs as required to the main gate.