by skold » 6 Dec 2004 3:10
Seing as i cant post in the faq forum i decided to post it here..enjoy.
[color=blue]160 prep
n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/8" backset, and a 1" edge-bore with a mortise 1" wide and 2-1/4" high
161 prep
n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/4" backset, and a 1" edge-bore with a mortise 1-1/8" wide and 2-1/4" high
A2
n. an increment of .0125 typically used in a small format interchangeable core (SFIC)
A3
n. an increment of .018 typically used in a small format interchangeable core (SFIC)
A4
n. an increment of .021 typically used in a small format interchangeable core (SFIC)
access control
n. any barrier or device, either natural or man made, that limits or prohibits, free or unlimited access
access control cylinder
n. a replacement for a mechanical cylinder which incorporates electronic access control and allows the original host lock to function without additional wiring or hardware modifications
access control key fob
n. any device other than a key designed to allow a token to be used and carried on a key ring
accessory position
n. the position of an ignition switch intended to permit the use of radio or other equipment without turning on a drive train component
active case
n. the exit device case mounted on the stile of the door on which the lock is located
active leaf
n. the single door of a pair on which the active or locking hardware is mounted
active relocking device
n. a device that places its bolts every time a safe door is closed and activation via attack prevents it from retracting its bolts
active retainer
n. 1. a cylinder retaining mechanism which requires that the plug be rotated before the cylinder can be removed, 2. a plug retaining mechanism which requires that the plug be rotated before the retainer can be removed
actuator
n. a device, usually connected to a cylinder, which, when activated, may cause a lock mechanism to operate
ADA
abb. Americans with Disabilities Act
adjustable ball hinge
n. a pivot with adjustable height for narrow stile doors
adjustable collar
n. a spring-loaded cylinder collar which can fill a range of gaps between the cylinder head and the door or escutcheon surface
adjustable mortise cylinder
n. any mortise cylinder whose length can be adjusted for a better fit in doors of varying thickness
AED
abb. anti-explosive device
AFTE
abb. Association of Firearm and Toolmark Examiners
after hours depository
n. a locked receptacle for the deposit of items after regular hours
AHC
abb. Architectural Hardware Consultant (as certified by DHI)
AHD
abb. after hours depository
AHJ
abb. authority having jurisdiction
alarm system
n. a system of electrical and/or electronic components which detect and report dangers, such as fire or intrusion
aligning tube
n. 1. a lock component which orients and joins the latch and knob spindles of certain bored locksets, 2. in some combination locks, a tube which houses the spindle, located between the dial ring and the lock
all-section key blank
n. the key section which enters all keyways of a multiplex key system
ALOA
abb. Associated Locksmiths of America, Inc.
Americans with Disabilities Act
n. a US federal law dealing with minimum standards of building accessibility, as well as other issues concerning individuals with disabilities
angularly bitted key
n. a key which has cuts made into the blade at various degrees of rotation from the perpendicular
ANSI
abb. American National Standards Institute
ANSI strike
n. any of many strikes designed to fit door and frame preparations as specified in the applicable document in the ANSI A115 series, common usage refers to a strike with dimensions of 4 7/8" X 1 1/4"
ANSI 117.1
n. that section of the American National Standards Institute documents pertaining to handicap access
anti-friction
adj. pertaining to a feature which, upon contact with the strike, allows smoother operation of a latch bolt
anti-rap
adj. specifically designed to preclude bypass via attack based on sharp, repetitive blows to the mechanism
anti slip positioned
adj. of or pertaining to the orientation of a cam on a profile cylinder which requires rotation before it may be removed from the lock case
anti-wrench reinforcement spring
n. a lock cylinder spring designed to protect the inner and outer halves of a profile cylinder from being forcibly separated as a means of brute force entry
arbor
n. the threaded end of a safe door handle
architectural finish code
n. one of a series of specification codes used to indicate the color and texture of a metal end product that can be installed. Some finish specifications also note the base metal characteristics and processes used to obtain the end product.
architectural hardware
n. 1. fittings applied to protect a surface of, or to facilitate use of movable members in a building such as doors, windows, or cabinets, 2. various fixtures used in building construction
arm (of a closer)
n. door closer linkage which connects the closer to the frame or door, depending on the mounting style
armored escutcheon
n. a usually hardened escutcheon, typically beveled, that resists physical attack
armored face plate
n. a face plate that conceals all lock and/or cylinder mounting screws
ASIS
abb. American Society for Industrial Security
assembly occupancy
n. those buildings or areas which are designated as places of assembly according to life safety or building codes
associated change key
n. a change key which is related directly to particular master key(s) through the use of constant cuts
associated master key
n. a master key which has particular change keys related directly to its combination through the use of constant cuts
ASTM
abb. American Society for Testing and Materials
astragal
n. a molding attached to the face of the active leaf of a pair of doors and overlapping the inactive leaf
ATM
abb. automatic teller machine
ATT
abb. attendant's key
attack resistance
adj. design qualities of a product that render brute force physical defeat methods less effective or ineffective
attendant's key
n. a selective master key used in a hospital keying system
audit overrun
n. a means of attack designed to eliminate entries in an access control database, overfilling and scrolling off previous entries
audit trail
n. a specific group of events selected from transaction records and listed sequentially
authority having jurisdiction
n. that person, usually within a municipality, charged with the application and interpretation of local life safety codes
automatic closing
adj. pertaining to a door which is equipped with a door closer, or other device to close it without manual intervention. Frequently found in Life Safety and fire code requirements.
automatic deadbolt
n. a deadbolt designed to extend itself fully when the door is closed
automatic flush bolt
n. a flush bolt designed to extend itself when both leaves of the pair of doors are in the closed position
automatic key machine
n. a machine capable of cutting keys with manual operations limited to loading and unloading keys
automatic teller machine
n. a device for dispensing cash, receiving deposits and performing other banking functions upon presentation of the proper authorization
auxiliary lock
n. any lock installed in addition to the primary lockset
auxiliary spring
n. a secondary spring used to support the lever handles of a lockset
auxiliary spring rose
n. oversized trim that interlocks with a lock chassis and external lever as a means to mount an auxiliary spring
-B-
B label
n. a classification by Underwriters Laboratories for doors with 1 1/2 hour rated fire protection
back plate
n. a thin piece of metal, usually with a concave portion, used with machine screws to fasten certain types of cylinders to a door
backcheck
n. the resistance provided by a door closer as a door is opened
backset
n. the distance between the center of a cross-bore and the bolt edge of a door or drawer
balance (a combination)
v. to dial a combination 1 number high and 1 number low to verify a correct combination setting
ball bearing
n. 1. a metal ball used in the pin stack to accomplish some types of hotel or construction keying, 2. a ball, usually made of steel, used by some lock manufacturers as the bottom element in the pin stack in one or more pin chambers, 3. any metal ball used as a tumbler's primary component, 4. used as a means of repairing a drilled hole in a safe when welded in place
ball bearing hardplate
n. a hardplate that contains metal balls, typically two types, imbedded in a honeycomb pattern, or free moving within a hardplate envelope
ball bearing hinge
n. a hinge which uses ball bearings between its knuckles to reduce friction
ball catch
n. a latch which uses spring pressure to force a ball bearing into a recess in its strike
ball locking
adj. a method of locking a padlock shackle into its case using ball bearing(s) as the bolt(s)
barium ferrite card
n. an access control system credential consisting of magnetized ferrite embedded in a plastic card with polarity and location being important features
barrel bolt
n. a surface mounted slide bolt which has a cylindrical shape
barrel key
n. a type of bit key with a hole drilled into the shank from the tip
barrier free
n. having to do with the absence of restrictions to access by the handicapped
Barron, Robert
the Englishman credited with the invention of the double-acting lever tumbler in 1778
Basic Building Code
n. former name for BOCA National Building Code
battery eliminator
n. an electric device designed to provide energy to equipment normally requiring batteries for operation
BBC
abb. Basic Building Code
bell box
n. the protective enclosure for a bell or other alarm sounding device
Bell type key
n. a key whose cuts are in the form of wavy grooves milled into the flat sides of the key blade. The grooves usually run the entire length of the blade.
bevel (of a door)
n. the pitch on the leading edge of a door which allows clearance for closing
bevel (of a lock)
n. the pitch of the face designed to match the bevel of a door. Some locks have an adjustable bevel.
bezel
n. a threaded collar commonly used to secure certain cylinder or lock assemblies
BHMA
abb. Builders Hardware Manufacturers Association
bible
n. that portion of the cylinder shell which normally houses the pin chambers, especially those of a key-in-knob cylinder or certain rim cylinders
bicentric cylinder
n. a cylinder which has two independent plugs, usually with different keyways. Both plugs are operable from the same face of the cylinder. It is designed for use in extensive master key systems.
bicycle padlock
n. a padlock with sufficient shackle clearance to secure a bicycle
bi-directional cylinder
n. a cylinder which may be operated in a clockwise and counterclockwise direction by a single key
bi-fold door
n. a door with two or more sets of hinges, the additional set(s) allows the door to have an accordion action when opened
Bilevel capable
n. typically a key that can operate two compatible mechanisms which have different security features
binary cut key
n. a key whose combination only allows for two possibilities in each bitting position: cut/no cut
binary type cylinder or lock
n. a cylinder or lock whose combination only allows for two bitting possibilities in each bitting position
biometric
adj. of or pertaining to a lock with a hybrid mechanism, part of the mechanism identifies a physical attribute such as finger print, voice print, etc. while another part is a mechanical mechanism
bit
n. 1. the part of the key which serves as the blade, usually for use in a warded or lever tumbler lock 2. v. to cut a key
bit height
n. a measurement from the post of a bit key outward to the end of the bit
bit key
n. a key with one or more projecting bits
bit thickness
n. a measurement of the bit from one side to the other side
bit width
n. as inserted into a lock, a measurement from the leading edge to the trailing edge of a bit
bitting
n. 1. the number(s) which represent(s) the dimensions of the key 2. the actual cut(s) or combination of a key
bitting depth
n. the depth of a cut which is made into the blade of a key
bitting list
n. a listing of all the key combinations used within a system. The combinations are usually arranged in order of the blind code, direct code, and/or key symbol.
bitting position
n. the location of a key cut
blade
n. the portion of a key which may contain the cuts and/or millings
blank
adj. uncut, see also "key blank"
blind code
n. a designation, unrelated to the bitting, assigned to a particular key combination for future reference when additional keys or cylinders may be needed
block master key
n. the one pin master key for all combinations listed as a block in the standard progression format
blocking lever
n. a lever in a safe deposit lock which blocks the renters key from completely entering the lock until the guard key has been inserted and turned
BMK
abb. block master key
BOCA
abb. Building Officials and Code Administration International (formerly Basic Building Code)
BOCA National Building Code
n. the model building code developed and published by BOCA
bolt
n. any movable projection which blocks the movement of one object relative to another
bolt cup
n. a thimble shaped device in a safe door frame that a locking bolt extends into when the door is closed and the bolt(s) are extended
bolt head
n. the part of a bolt that enters a strike
bolt motor
n. 1. a mechanical device that extends and retracts the door bolt(s)of a safe, normally engaged by closing the door and disengaged by a time lock, 2. a mechanical device (usually electrically powered) that extends and retracts the bolt of a safe lock. It is commonly disengaged by an electronic input such as that from a keypad.
bolt sensor switch
n. a switch installed to detect when a lock bolt is extended or retracted
bolt shim
n. a plate or plates mounted to the frame of a vault to provide equal gapping for each locking bolt
bolt tail
n. the part of a bolt retained in the lock case that contains the bolt slot and maintains bolt alignment
boltwork button
n. the component which automatically triggers extension of the locking bolt(s) when the door is in the closed position
boltworks
n. 1. the combination of bars, rods, plates and linkages in a safe door designed to hold the door in the locked or unlocked position depending on the status of the lock itself, 2. any part of a lock other than a cylinder, turnpiece, or operating handle that affects movement of, or the ability to move, the bolt
bond box
n. the removable container within a safe deposit box compartment
bored lock
n. a lock for a door prepared with one or more cross-bores and one or more edge-bores
borescope
n. an internally lighted optical instrument for viewing normally concealed or inaccessible components
boring jig
n. a tool, temporarily affixed to a door, which provides a template structure to guide drill bits properly when preparing for the installation of specific hardware
bottom of blade
n. the portion of the blade opposite the cut edge of a single bitted key
bottom pin
n. usually a cylindrical shaped tumbler which may be conical, ball shaped or chisel pointed on the end which makes contact with the key
bow
n. the portion of the key which serves as a grip or handle
bow stop
n. a type of stop located near the key bow
box of wards
n. a complete unit of intricate wards installed in or on a lock case
box strike
n. a strike equipped to line the bolt cavity for both aesthetic and protective purposes
brace Lock
n. a deadbolt lock that engages an independent bolt, one end of which is mounted in the floor away from the door
Bramah, Joseph
the Englishman who had the world's first patent of a locking mechanism in 1784. It was the first lock incorporating a cylinder whose key did not contact the lock bolt directly.
Bramah type lock
n. a lock or cylinder using a mechanism with sliders, normally arranged in a circle
bridge assembly
n. a removable frame that contains the wheel pack and wheel post that is often found in mechanical vault locks
bridge ward
n. a center ward attached to the interior of a lock by means of a bracket
broach
n. 1. a tool used to cut the keyway into the cylinder plug 2. v. to cut the keyway into a cylinder plug with a broach
building master key
n. a master key which operates all or most master keyed looks in a given building
build-up dimension
n. 1. the distance between two different shear lines, as expressed in units of the manufacturer's increment or as an actual measurement 2. the dimension of the buildup pin required in a particular chamber, which will allow one key to operate at the plug shear line and a different key to operate at a different shear line
build-up pin
n. the additional element of a pin stack required to allow operation at different shear lines in a cylinder
bullet catch
n. a friction catch with a projecting latch which is spherical or dome shaped
bump key
n. a cut key, cut to allow the user to replicate the action of a pick gun
burglar alarm
n. a system designed to detect and report conditions, which may indicate intrusion or attempted intrusion
burglar resistant
adj. of or pertaining to a security container designed to resist forcible entry for a specified period of time determined by the rating of the container
button knob
n. the knob in a key-in-knob lock that includes a push or turn button
bypass key
n. the key which operates a key override cylinder
by-pass tool
n. a device that neutralizes the security of a locking device, or its application hardware, often taking advantage of a design weakness
by-passing door lock
n. a lock with a bolt that extends to block parallel movement of another door
by-passing sliding door
n. Two doors mounted on tracks parallel to each other that when one or both are slid to opposite extremes block the opening. Typically, one may be moved behind the other to allow access.
-C-
C label
n. a classification by Underwriters Laboratories for doors with 3/4 hour rated fire protection
cable wired remote relocker
n. a spring loaded relock, triggered by release of the attached wire
cam
n. 1. a lock or cylinder component which transfers the rotational motion of a key or cylinder plug to the bolt works of a lock 2. the bolt of a cam lock
cam lock
n. a complete locking assembly in the form of a cylinder whose cam is the actual locking bolt
cane bolt
n. a surface mounted deadbolt designed to be moved by hand via a 90º bend in the bolt that serves as a handle
cap
1. n. a spring cover for a single pin chamber 2. n. a part which may serve as a plug retainer and/or a holder for the tailpiece 3. v. to install a cap
capping block
n. a holding fixture for certain interchangeable cores which aids in the installation of the caps
captured combination bit position
n. the position where a movable key insert is placed on a key
captured hinge
n. a hinge system for safes where the door may not be lifted off the body of the safe without the removal of one of the hinge blocks
card access system
n. an access control system that utilizes a controlled security card as the credential
card holder
n. a person to whom a card has been issued
card reader
n. a device which interprets coding resident on or in cards
carriage
n. 1. the movable assembly of a key machine which supports the key vise(s), 2. a changeable part of a clipper that holds the key blank
carry bar
n. the part of a multi-bolt safe boltworks to which the bolts are attached
case
n. the housing or body of a lock
case cover
n. the portion of a lock case which is designed to be removable to allow access to the mechanism
casement window
n. a window with a sash which pivots or swings to open
case ward
n. any ward directly attached to or projecting from a lock case
catch
n. any device that holds a door closed and may be released by simply pushing or pulling on the door
CBOK
abb. construction breakout key
central processing
adj. of or pertaining to an access control system in which all or most control functions are performed by the main computer
central station
n. a location designed for the express purpose of processing status signals for multiple alarm systems
certificate of occupancy
n. a document, granted by the authority having jurisdiction, permitting occupancy or use
chain bolt
n. a spring biased bolt operated by an attached chain, typically for mounting to the top of a door
chain lock
n. a device used to secure property with interlocking links and secured on both ends by a slide plate or a key locking device
chamber
n. any cavity in a cylinder plug and/or shell which houses the tumblers
change index
n. the point on a key changeable combination lock dial ring to which the old and new combinations must be dialed when changing the combination
change key
n. 1. a key which operates only one cylinder or one group of keyed alike cylinders in a keying system, 2. any device that is used to mechanically or electronically allow resetting of certain key or combination locks, see also "reset key" #1
changeable bit key
n. a key which can be recombinated by exchanging and/or rearranging portions of its bit or blade
changeable lever
n. a lever tumbler typically made in two or more pieces which can be variably positioned with each other to change the effective location of the gate
changeable tumbler
n. a tumbler whose reference size can be changed mechanically without removal from the lock or cylinder
chassis
n. the part of a cylindrical lockset that contains the actuating mechanism and has a means for mounting trim and a bolt
check pin
n. a device resembling a bottom pin, found in a non-traditional chamber, used to restrict the rotation of the plug unless a specific area of the key is cut
cheek
n. a projection from a lock case that serves as a guide or race for another part
Chubb shackle
n. a hinged shackle with a pierced hole for the bolt in its movable end
CIL
abb. the title "Certified Institutional Locksmith" as awarded by ILA
circular strike
n. a typically round, finished strike, usually driven into place in a drilled hole
CJIL
abb. the title "Certified Journeyman Institutional Locksmith" as awarded by ILA
CJL
abb. the title Certified Journeyman Locksmith as awarded by the Professional Locksmith Association of Alberta
CJS
abb. the title "Certified Journeyman Safecracker" as awarded by NSO
CK
1. abb. change key 2. abb. control key
cladding
n. an outer casing, usually metallic, typically filled with concrete to protect a safe against theft or penetration
clamshell
n. the two piece housing (usually plastic) that encases the upper steering column and ignition lock on some automotive applications
claw bolt
n. a bolt with one or more fingers, which extend out of the bolt and lock behind the strike as the bolt reaches the locked position
clear opening
n. a portal providing clearance through which passage is unhampered
clevis
n. a device to permanently attach a chain to a padlock
clipper
n. a hand held key bitting punch, often incorporating a trigger-like handle
closed gated
adj. pertaining to a lever tumbler whose gate is pierced into the body of the tumbler. The lever(s) surround the fence in both the locked and unlocked positions.
closed knob
n. a knob without an opening in its face
closed loop
n. a detection circuit where discontinuity in a branch will result in a reportable condition
closer size
adj. a numerical value related to the applied force of a door closer, with a larger number being a stronger force. Older closers were assigned alphabetic size designations, where A was the smallest.
closet latch
n. a latchset which has a turning device with minimum projection in place of the inside knob or lever
closet spindle
n. a spindle with a thumbturn attached to one end
closing combinated
adj. pertaining to a lever lock which is automatically combinated to the last key to extend the bolt
cloverleaf cam
n. a style of mortise cylinder cam with three lobes: a ball shaped longer center, and angular projections on either side
clutch
n. that part of a profile cylinder which transfers rotational motion from the inside or outside element to a common cam or actuator
CMIL
abb. the title "Certified Master Institutional Locksmith" as awarded by ILA
CMK
abb. construction master key
CMK'd
abb. construction master keyed
CML
abb. the title "Certified Master Locksmith" as awarded by ALOA
CMS
abb. the title "Certified Master Safecracker" as awarded by NSO
CMST
abb. the title "Certified Master Safe Technician" as awarded by SAVTA
CO
abb. certificate of occupancy
code
n. 1. a designation assigned to a particular key combination for reference when additional keys or cylinders may be needed. See also, "blind code", "direct code", and "key symbol", 2. a standard for Life Safety, structural integrity, fire safety, etc., either incorporated into the statutes of a given jurisdiction, or a model standard
code key
n. a key cut to a specific code rather than duplicated from a pattern key. it may or may not conform to the lock manufacturer's specifications
code original key
n. a code key which conforms to the lock manufacturer's specifications
code series
n. an ordered sequence of unique codes related to specific key combinations, key sections and manufacturers
coercivity
adj. the measure (usually expressed in Oersteds) of a magnetic material's resistance to being recorded or erased. Magnetic stripe cards are either low coercivity or high coercivity.
comb attack
n. 1. a pin tumbler defeat tactic using a series of straight pins or teeth on a single tool, intended to push the pin stack past the shear line, 2. a defeat tactic used to force a spring cover off a pin tumbler cylinder
combinate
v. to set a combination in a lock, cylinder, or key
combination
n. the group of numbers which represent the bitting of a key and/or the tumblers of a lock or cylinder
combination lock
n. a lock which is operated by local input of a specific series or sequence of numbers or letters
combination wafer
n. a type of disc tumbler used in certain binary type disc tumbler key-in-knob looks. Its presence requires that a cut be made in that position of the operating key(s)
combination wheel
n. a wheel type tumbler in a combination lock
compensate drivers
v. to select longer or shorter top pins, depending on the length of the rest of the pin stack, in order to achieve a uniform pin stack height
complementary keyway
n. usually a disc tumbler keyway used in master keying. It accepts keys of different sections whose blades contact different bearing surfaces of the tumblers.
composite blank
n. a blank designed to enter two or more simplex keyways
composite keyway
n. a keyway which has been enlarged to accept more than one key section, often key sections of more than one manufacturer
compound bitted key
n. a key with at least one compound cut
compound cut
n. a bitting which has another bitting dimension within its dimensions
compound lever
n. a lever tumbler that has two or more distinct sweeps contacted by two or more different keys
concealed screw rose
n. KIK or KIL trim that snaps into place to hide mounting screws
concealed shell cylinder
n. a specially constructed (usually mortise) cylinder. Only the plug face is visible when the lock trim is in place
concealed vertical rod exit device
n. a vertical rod exit device whose rods and header/threshold bolts are concealed within the door
concrete case
n. an enclosure for mounting a floor closer
configured pin
n. a bottom pin which is designed not to rotate along its long axis, often associated with off-centerline chambers
constant cut
n. any bitting(s) which are identical in corresponding positions from one key to another in a keying system. They usually serve to group these keys together within a given level of keying, and/or link them with keys of other levels. See also "rotating constant"
construction breakout key
n. a key used by some manufacturers to render all construction master keys permanently inoperative
construction core
n. an interchangeable or removable core designed for use during the construction phase of a building. The cores are normally keyed alike and, upon completion of construction, they are to be replaced by the permanent system's cores.
construction hole
n. a recess or pocket designed to receive ball bearings in lost-ball keying. The size and/or shape of the recess is such that a pin tumbler cannot enter it.
construction master key
n. a key normally used by construction personnel for a temporary period during building construction. It may be rendered permanently inoperative without disassembling the cylinder.
construction master keyed
adj. of or pertaining to a cylinder which is or is to be operated temporarily by a construction master key
contact area
n. the gate area in a combination lock drive cam where the lever nose does not contact the drive cam
contact point(s)
n. the area on each side of the drive cam gate that the lever nose makes contact with. Most locks have a left contact point and a right contact point.
contact switch
n. a electrical, magnetic or mechanical device that triggers a circuit(s) to open or closed depending on the application
contactless smart card
n. a card, conforming to the physical characteristics specified in ISO 7813 & 10536, which contains one or more integrated circuits and does not use contacts to obtain power and allow interface to external equipment
continuous duty
adj. designed to sustain application of power for extended periods
control chamber
n. in an interchangeable or removable core, any chamber which has a control shear line, which is different from the operating shear line
control cut
n. any bitting which operates the retaining device of an interchangeable or removable core
control dimension
n. in certain interchangeable or removable cores, the distance between the operating shear line and the control shear line, expressed either in units of the increment or as a measurement
control key
n. 1. a key whose only purpose is to remove and/or install an interchangeable or removable core 2. a bypass key used to operate and/or reset some combination type locks 3. a key which allows disassembly of some removable cylinder locks
control lug
n. that part of an interchangeable or removable core-retaining device which locks the core into its housing
control number
n. a number used to calculate the size of the build-up pin when; (a) the sizes of bottom and master pins are known, or (b) the bitting depths of all operating keys are known
control shear line
n. the shear line which allows operation of the control lug of an interchangeable or removable core
control sleeve
n. the part of an interchangeable or removable core retaining device which surrounds the plug
controlled cross keying
n. a condition in which two or more different keys of the same level of keying and under the same higher level key(s) operate one cylinder by design; e.g., XAA1 operated by AA2 (but not XAA1 operated by AB1)
Note: This condition could severely limit the security of the cylinder and the maximum expansion of the system when (1) more than a few of these different keys operate a cylinder, or (2) more than a few differently cross keyed cylinders per system are required.
controller
n. a device that has decision making capability by way of authentication or lookup in a database. It serves a control function by having output relays or other interfaces with other devices which may include other controllers, electric strikes, alarms, or printers.
convertible dial
n. a dial that is designed to readily accept a key locking core at any time
coordinator
n. in conjunction with a pair of doors, a device designed to cause the inactive leaf to close first
core
n. a complete unit, often with a "figure eight" shape, which usually consists of the plug, shell, tumblers, springs, plug retainer and spring cover(s). It is primarily used in removable and interchangeable core cylinders and looks.
corner bracket
n. a door closer mounting plate attached to the upper corner of the jamb
CPL
abb. the title "Certified Professional Locksmith" as awarded by ALOA
CPP
abb. the title "Certified Protection Professional" as awarded by ASIS
CPS
abb. the title "Certified Professional Safe Technician" as awarded by SAVTA
crane hinge
n. a three leaf hinge assembly with two of the leaves being mounted to the body and door and the third only to the other two leaves
CRL
abb. the title "Certified Registered Locksmith" as awarded by ALOA
credential
n. any authorizing instrument, other than a mechanical key, that can cause entry to be allowed
cremone bolt
n. a surface mounted, top and bottom locking, deadbolt mechanism operated by a central handle
cross-bore
n. a hole drilled into the face of a door where a bored or interconnected lockset is to be installed
cross keying
n. the deliberate process of combinating a cylinder (usually in a master key system) to two or more different keys which would not normally be expected to operate it together. See also "controlled cross keying" and "uncontrolled cross keying."
cruciform
adj. of or pertaining to a key section or keyway which usually resembles a plus sign (+) or the letter "X"
CSI
abb. Construction Specifiers Institute
cuff
n. a sleeve mounted around a steering column to protect the column
cup escutcheon
n. lock trim that creates a recess in a door face and does not protrude beyond the door face
cup handle
n. a fitting recessed into a door surface to provide a finger grip with which to move the door
cupboard latch
n. a latching mechanism typically surface mounted to the outside of cabinet doors or drawers
curb
n. a round safe lock cover that is rabbeted and has a wheel post as an integral part of its construction
curb post
n. a wheel post attached to a curb
curtain (British)
n. in a lever tumbler lock, a device that blocks access to the keyhole when the key is turned
curved lip strike
n. a strike so shaped as to effect smoother function of the latch while the door is closing
cut
v. to make cuts into a key blade, see also "key cut(s)"
cut angle
n. a measurement, usually expressed in degrees, for the angle between the two sides of a key cut, see also "degree of rotation"
cutaway
1. adj. of or pertaining to a device with material removed or a transparent cover to expose and demonstrate a mechanism or feature 2. n. any cutaway product
cut edge
n. the portion of the key blade which contains the cuts
cut key
n. a key which has been bitted or combinated
cut root
n. the bottom of a key cut
cut root shape
n. the shape of the bottom of a key cut. It may have a flat or radius of a specific dimension, or be a perfect "V"
cutter
n. the part of a key machine which makes the cuts into the key blank
cutter guard
n. a shield over a key machine cutter to protect the operator
cylinder
n. a complete operating unit which usually consists of the plug shell, tumblers, springs, plug retainer, a cam/tailpiece or other actuating device, and all other necessary operating parts
cylinder blank
n. a dummy cylinder which has a solid face and no operating parts
cylinder clip
n. a spring steel device used to secure some types of cylinders
cylinder collar
n. a plate or ring installed under the head of a cylinder to improve appearance and/or security
cylinder guard
n. a protective cylinder mounting device
cylinder key
n. a broad generic term including virtually all keys for pin and disc tumbler locks
cylinder lock
n. any lock that is operated by a cylinder key
cylindrical lockset
n. a bored lockset whose latch or bolt locking mechanism is contained in the portion installed through the cross-bore
-D-
day gate
n. a barrier used to restrict passage during normal business hours, normally used at a vault entrance
day key
n. 1. the key for a day gate or day operation of a safe or vault lock 2. a cash register key which does not allow audit or reset functions 3. see 'change key'
daylock
1. n. a locking device, other than the primary lock, used to maintain the safe in a locked condition, 2. v. to insecurely close a safe or vault door without scrambling the combination, even though the door may not be opened by simply turning or pulling the handle
dead pin
n. an immovable pin in a tubular lock which functions as a ward
deadbolt
n. a bolt, which requires a deliberate action to extend, and which resists end pressure in the unlocking direction when fully extended
deadlock
n. a lock which incorporates a deadbolt
deadlocking
adj. pertaining to any feature which, when fully engaged, resists attempts to move the latch or bolt in the unlocking direction through direct pressure
deadlocking latch
n. a latchbolt with a deadlocking mechanism
declining step key
n. a key whose cuts are equal or deeper as you proceed from bow to tip
deco key finish
n. any design embossed or imprinted on a key to give it an aesthetic appearance
decode
v. to determine a key combination by physical measurement of a key and/or cylinder parts
decoder gauge
n. a measuring device which helps determine the combination of a lock or cylinder without removing the tumblers
deflector cover
n. a removable shield designed to prevent pin point drilling on a safe
degree of rotation
n. a specification for the angle at which a cut is made into a key blade as referenced from the perpendicular; e.g., right (R or 2), left (L or 1) or center (= perpendicular) (C). This specification is typically used for some high security keys.
delamination
v. the process on older laminated door safes of having to remove some layers of the lamination to allow access to the lock
delayed action timer
n. a secondary device which prevents movement of a bolt or boltworks until a set amount of time has elapsed. The device is normally set or activated as part of the unlocking process.
department master key
n. a master key which operates all or most master keyed locks of a given department
depth key set
n. a set of keys used to make a code original key on a key duplicating machine to a lock manufacturer's given set of key bitting specifications. Each key is cut with the correct spacing to one depth only in all bitting positions, with one key for each depth.
derived series
n. a series of blind codes and bittings which are directly related to those of another bitting list
detector lever
n. a lever tumbler with an extra gate that, when elevated beyond the bolt fence, accepts a latching fence to prevent further movement of the tumbler
detector lock
n. a lock that incorporates a detector lever in its mechanism
detention lock
n. a lock designed for securing a cell or other area in a prison or jail
DHI
abb. Door and Hardware Institute
dial
1. n. the typically rotatable member of a combination lock that may be used to differentiate locations on the combination wheels and cause operation of the lock, 2. v. the act of turning or rotating a dial
dial insert lock
n. a key operated cylinder used to lock the dial on a combination lock
dial ring
n. an escutcheon for a combination lock dial
dialer
n. 1. a device, which automatically places a telephone call to a pre-set number when, activated 2. an electro-mechanical device which systematically tries different combinations on a dial operated combination lock
diamond back
adj. pertaining to a rim cabinet lock whose mounting flanges and case forms the general shape of a diamond
diamond pick
n. a tumbler manipulation device with a triangular protrusion at its tip
digital dial
n. a rotatable dial that causes a separate readable index, (typically digital), to change
digital dialer
n. a telephone communication device that dials a programmed telephone number, and transmits, via tones or pulses, one or more signals to a digital receiver
dimple
n. a key cut in a dimple key
dimple key
n. a key whose cuts are drilled or milled into its blade surfaces. The cuts normally do not change the blade silhouette.
direct code
n. a designation assigned to a particular key which includes the actual combination of the key
direct drive
adj. of or pertaining to a combination lock with the drive cam mounted on the dial's spindle shaft
direction of rotation
n. the direction a combination lock dial is to be turned when the combination is worked. It usually is specified as clockwise (CW) or right (R), or counter clockwise (CCW) or left (L).
disc tumbler
n. 1. a flat tumbler which must be drawn into the cylinder plug by the proper key so that none of its extremities extends into the shell 2. a flat, usually rectangular tumbler with a gate which must be aligned with a sidebar by the proper key
diskette lock
n. a usually key operated device which blocks access to the drive for a removable disk
display key
n. a special change key in a hotel master key system which will allow access to one designated guest room, even if the lock is in the shut out mode. It may also act as a shut out key for that room.
divided plug keyway
n. a cylinder plug divided at the keyway into two parts. Either part may be replaced to result in a different keyway combination via different warding for the keyway
dog
1. v. to place an exit device in the holdback mode 2. n. in marine applications the latch for a hatch
dogging cylinder
n. a key operated cylinder used to dog an exit device
dogging device
n. in an exit device, a mechanism used to temporarily disable the latch from locking
dogging key
n. a key or tool used to dog an exit device
dogging screw
n. a screw used to dog an exit device
door bumper
n. an obstruction installed to prevent a door or lock from contacting another object
door closer
n. a device designed to regulate the closing of a door automatically by various means
door control
n. any device which controls the opening, closing or position of a door
door holder
n. any device designed to maintain a door in the open position
door lug
n. a non-movable projection on a safe door that helps keep the door in the locked position
door puller
n. a tool designed to open a safe deposit box by forcibly pulling the door and breaking the lock
door silencer
n. a bumper installed in the jamb stop to quiet the closing of a door
door swing
adj. the direction and degree to which a door opens, as LH 90º, RH 180º, etc.
door viewer
n. a device with one or more lenses, mounted in a door at eye level, which allows a limited view through a door
double-acting closer
n. a door closer designed to be used on a double-acting door
double- acting door
adj. a door that may be pushed open from either side
double-acting hinge
n. a hinge which permits movement of a door in either direction from the closed position
double-acting lever tumbler
n. one that must be lifted a precise amount, neither too little nor too much to allow movement of a bolt
double bitted key
n. a key typically bitted on two opposite surfaces
double cut
1. n. two bittings for the same tumbler position 2. adj. see "double bitted key"
double cylinder
adj. pertaining to a lock with two keyed cylinders
double cylinder deadlock
n. a deadbolt lock whose bolt may be operated by a key from either side
double-D
n . a shape consisting of two opposing arcs and two opposing flats adj. 2. Having such a shape.
double-D punch
n. a tool used to make a double-D hole
double horn
adj. of or pertaining to a safe deposit type lock which requires two separate holes through the door
double locking
adj. of or pertaining to a lock with one or more bolts with different functions, typically a latch and a deadbolt
double pin
v. o place more than one master pin in a single pin chamber
double throw bolt
n. a deadbolt that has two distinct extended positions, both of which are deadlocked
drawback latch/lock
n. a latch/lock whose latch is disengaged by pushing or pulling an actuator toward the hinge side of the jamb
draw sheet
n. a page with a completed matrix of potential combinations used in Matrix Format Master Keying
drill point
n. the exact measurement of the location used to drill a locked up container to effect an opening
drive cam
n. the first wheel rotated by a dial or key that has an opening designed to allow the fence, lever, or tailbar to enter and facilitate in opening of the lock or safe
drive-in
adj. pertaining to a latch or bolt with a round face
driver spring
n. a spring placed on top of the pin stack to exert pressure on the pin tumblers
drop
n. a pivoting or swinging dust cover, see also "increment"
drop bolt
n. a lock with an interlocking bolt which moves vertically and may enter loops on the strike
drop in
n. the gate area of the drive cam where the lever nose drops into. Usually identified with a corresponding number on the dial
drop-in point
n. the location in a combination lock where the wheel gates are aligned with the fence
drop ring
n. a looped handle which can pivot, typically recessed and falls flush with the door face when not in use
dual custody
n. 1. a function designed to require the presence of two persons with two different keys, combinations or codes to operate the same device 2. adj. Pertaining to such a function
dual locking cylinder
n. a style of lock cylinder whose key operates two independent locking mechanisms within the cylinder
dumbbell pin
n. a spool pin with serrations at the larger diameter ends
dumb card
n. an authorization credential that presents recorded data only
dumb reader
n. an access control interrogation device that can only relay data to a controller
dummy
adj. pertaining to any type of non-active device applied for aesthetic purposes
dummy cylinder
n. a non-functional facsimile of a rim or mortise cylinder used for appearance only, usually to conceal a cylinder hole
dummy trim
n. non-active trim applied for aesthetic purposes
duplex
n. an early trade name used by Yale for locks which offer the functionality of master keying by incorporating two cylinders on the same side of the door, or two keyways in a lever tumbler lock. One keyway is for the change key and the other keyway is for the 'master key'.
duplicate
v. to copy, see also "duplicate key"
duplicate key
n. any key reproduced from a pattern key
duress code
n. a special combination or operation sequence which conveys an alarm or other signal to a remote location while allowing access
dust box
n. an enclosure applied under a strike to enhance appearance and/or performance
dust cover
n. a device designed to prevent foreign matter from entering a mechanism through the keyway
dustproof cylinder
n. a cylinder designed to prevent foreign matter from entering either end of the keyway
dust proof strike
n. a typically floor mounted strike that has a spring loaded internal plunger designed to keep the receptacle free of dust and debris
Dutch door bolt
n. a bolt which secures the top section of a Dutch door to the bottom section
-E-
EAC
abb. electronic access control
edge-bore
n. a hole drilled into the edge of a door where a bored or interconnected lockset is to be installed
edge pull
n. a handle mounted on, or in, the edge of a sliding or pocket door for gripping to pull the door closed
educational occupancy
n. those buildings or areas which are designated as places for education purposes according to life safety or building codes
effective plug diameter
n. the dimension obtained by adding the root depth of a key cut to the length of its corresponding bottom pin which establishes a perfect shear line. This will not necessarily be the same as the actual plug diameter.
effective throw
n. the distance a deadlatch remains projected when the guard bolt has been engaged and end pressure is applied to the latch
EIA
abb. Electronics Industry Association
ejector hole
n. a hole found on the bottom of certain interchangeable cores under each pin chamber. It provides a path for the ejector pin.
ejector pin
n. a tool used to drive all the elements of a pin chamber out of certain interchangeable cores
elbow catch
n. an "L" shaped latching mechanism typically mounted to the inside of the inactive leaf of a pair of cabinet doors
electric strike
n. an electro-mechanical strike, which secures or releases the latch via applied current
electrified lockset
n. a lock which is controlled electrically
electronic access control
n. access control that uses electricity
emergency code
n. in an electronic lock, a factory-set or user-set code or combination that will open the lock a predetermined number of times
emergency key
n. the key which operates a privacy function lockset
emergency master key
n. a special master key which usually operates all guestroom locks in a hotel master key system at all times, even in the shut out mode. This key may also act as a shut out key.
EMK
abb. emergency master key
end cap
n. the cover typically used on the hinge side edge of many touch bar exit devices
end ward
n. a ward which prevents complete insertion and/or rotation of an incorrect key by forming an obstruction to the end of the key
end ward cut
n. any cut made into a key to bypass an end ward
ENG
abb. engineer's key
engineer's key
n. a selective master key which is used by maintenance personnel to operate many locks under different master keys in a system of three or more levels of keying
entrapment key
n. a key designed to be captured by a cylinder after insertion
entry/exit delay
n. an alarm or access control feature which allows a specific time lapse between the activation of a switch and the activation of a secondary component
ERD
abb. external relocking device
escutcheon
n. a surface mounted trim which enhances the appearance and/or security of a lock installation
espagnolette
n. a top and bottom locking system with hooks at either end which rotate to draw a door or window fully closed
exit alarm
n. an annunciator that signals the opening of an exit door
exit device
n. a door lock/latch mechanism which releases in the direction of exit travel via a bar or panel extending across the major width of the door
exit door
n. 1. a door which has no provision for ingress, 2. a door which fills some or all the code requirement for safe egress of the occupant load from a building or portion of a building
exit only
adj. refers to hardware designed to secure an opening in such a way as to permit exit at all times but prevent entry at all times
exit travel, direction of
n. the way occupants are expected to move to get out of a building or a portion of a building
expansion specification
n. a requirement for bittings to be planned beyond the immediate needs of a keying system
extended lip strike
n. a strike with a (usually curved) leading edge that protrudes to or beyond the edge of the jamb
extension flush bolt
n. a flush bolt that has a separate escutcheon and faceplate
extension link
n. a device which is used to extend the backset of a spring latch or dead latch
external relocking device
n. a device outside the lock case that prevents the safe door from being opened after attack, two types are typically used, active and passive
extractor key
n. a tool which normally removes a portion of a two-piece key or blocking device from a keyway
-F-
face
n. the finished component of a lock visible on the edge of a door
face cap
n. a finished cover, that may retain a dust cover or serve as a plug retainer, affixed to the face of some lock cylinders
face plate
n. the finished, removable plate which covers the front of some locks
factory original key
n. the cut key furnished by the lock manufacturer for a lock or cylinder
fail-safe
adj.: a feature of a security device designed to release, for safety purposes, during a power loss
false acceptance rate
n. in a biometric access control device, the number of incorrect submissions that can be accepted as correct, typically expressed as per cent, e.g. less than 0.0001%
false gate
n. a gate in a part of the operating mechanism, which is not formed deeply enough to allow operation of the lock
false rejection rate
n. in a biometric access control device, the number of correct submissions that can be rejected as incorrect, typically expressed as per cent, e.g. less than 0.001%
FAR
abb. false acceptance rate
feather key
n. a type of flat key used for the original Yale pin tumbler mortise locks
fence
n. 1. a projection on a lock bolt which prevents movement of the bolt unless it can enter gates of properly aligned tumblers, 2. any locking element other than a sidebar or shackle designed to enter a tumbler's gate, 3. a projection on the lever in a combination lock that prevents the lever from engaging the drive cam until the proper combination is entered, see also "sidebar"
file cabinet lock
n. 1. any lock used on a file cabinet 2. a plunger lock cylinder for a gang lock normally used in a file cabinet
fill program
n. a computer based code reference which determines all combinations in a code series that match a given partial combination
filler plate
n. a usually flat piece of material used to; cover a hole or opening, provide a foundation for mounting additional hardware, or adjust the position of hardware as mounted
fine ward
n. a ward made of sheet metal, typically installed as a bridge ward
finish
n. a material, coloring and/or texturing specification
fire alarm
n. a system designed to detect and report conditions, which may indicate presence of a fire
fire door
n. a door constructed to provide a specific degree of fire protection
fire door assembly
n. any combination of a fire door, frame, hardware and other accessories, that together provides a specific degree of fire protection to the opening
fire exit hardware
n. exit devices, which may legally be installed, on fire doors. Distinguished from other exit devices because it: 1. is labeled for both fire and panic and; 2. has no means of locking the latch in a retracted position
fire separation
n. construction designed to limit the spread of fire in a structure
fireman’s key
n. a key used to override normal operation of elevators, bringing them to the ground floor
first generation duplicate
n. a key which was duplicated using a factory original key or a code original key as a pattern
first key
n. any key produced without the use of a pattern key
five column progression
n. a process wherein key bittings are obtained by using the cut possibilities in five columns of the key bitting array
five pin master key
n. a master key for all combinations obtained by progressing five bitting positions
fixed fly
n. in a combination lock, a fly that does not move relative to the wheel it is on
fixed pin hand change wheel
n. a combination wheel that uses pressed or threaded pins as a fixed fly
fixed rise (chamber)
n. a plug and shell pin chamber design associated with fixed rise pins
fixed rise (pin)
adj. of or pertaining to a pin tumbler which is designed to operate properly only when its rotation capabilities are limited or precluded
fixed tumbler
n. a ward located within the tumbler pack
flat goods
n. ancillary architectural hardware such as push plates, mop plates, stretcher plates, kick plates, etc.
flat steel key
n. a flat type key made of steel
flat type key
n. a key which is completely flat on both sides, usually used for warded or lever tumbler locks
flexible head mortise cylinder
n. an adjustable mortise cylinder which can be extended against spring pressure to a slightly longer length
floor closer
n. a door closer installed below the door at the floor surface, generally also acting as a bottom pivot for the door
floor master key
n. a master key which operates all or most master keyed locks on a particular floor of a building
floor safe
n. a security container designed for mounting below floor level with the top surface flush with the finished floor
flush bolt
n. a non-keyed deadbolt, with a one piece escutcheon/faceplate, typically mounted flush to door surfaces
flush cup pull
n. a flush pull with a circular cross-section
flush pull
n. a recess in a door or drawer which serves as a handle or grip
flush ring
n. a ring, recessed into a door, which swings out to serve as a handle
fly
n. the part of a combination wheel pack or a drive cam that makes contact with a similar part on an adjacent wheel in the wheel pack and causes it to turn
fly stop
n. the part of a combination lock wheel that restricts the motion of a movable fly
foot
n. the cam portion of the trunnion assembly in some lever tumbler locks
foot bolt
n. a bolt mechanism typically mounted at the bottom of a door, and designed to be easily operated by ones foot
forbidden zone
n. on a combination lock dial, a range of marks within which the last item of the combination must not be set to provide for proper lock operation
fork lock
n. a motorcycle or bicycle lock which prevents the front fork from rotating
four column progression
n. a process wherein key bittings are obtained by using the cut possibilities in four columns of the key bitting array
four pin master key
n. a master key for all combinations obtained by progressing four bitting positions
frangible shackle
n. a padlock shackle designed to be broken easily
frangible shackle padlock
n. a padlock equipped with an easily broken shackle
frangible tumbler
n. a tumbler whose reference size may be permanently altered, or established, mechanically without removal from the cylinder
French doors
n. a set of double doors composed of many small glass panes and narrow stiles
friction catch
n. a door or cabinet latching device which contains no actuator and is released by applying a measure of force in the opening direction
friction fence
n. a combination lock fence that is usually mounted loosely to a rotatable member that biases the fence to test the cam and wheels for alignment at drop in
friction hinge
n. a device with torque resistance between two parts on a common axis
frictioned plug
n. a type of clutch system permitting both sides of a double profile cylinder to operate the lock regardless of whether the opposite plug is turned
front
n. the portion of a lock which provides the means of mounting the locking device to the edge of the door
front drive
adj. of or pertaining to a combination lock with the drive cam located between the dial and the wheel pack
front reading (dial)
adj. a safe dial that has graduations on the face
FRR
abb. false rejection rate
full lip strike
n. a strike plate for a latch with the lip extending the full height of the strike
full mortise
adj. pertaining to a method of installation in which only the faceplate and trim is exposed. The lock case is installed in a pocket in the door or drawer v. to make a rectangular pocket in a door or drawer that is only open on the edge of the door or drawer
full mortise hinge
n. a type of hinge designed for mortising into the edge of the door and into the rabbet of a door frame
function
n. a set of operating features for a particular type of lock or exit device which make it suitable for a specific application. The function is designated by a classification name or standards reference number. See ANSI or BHMA for a specific listing.
fusible link
n. a relock trigger activated by heat
fusible link arm
n. a door closer arm which includes a mechanism for holding a door open. This mechanism has an element which, when subjected to certain temperatures, melts and allows the door to close
-G-
gang lock
n. a locking mechanism with multiple bolts which locks different openings simultaneously by a single action
garage door lock
n. a rim lock mechanism designed for use on an overhead door, which mechanism has a spring loaded bolt which automatically locks the door's bolt mechanism
gate
n. a notch cut into the edge of a tumbler to accept a fence or sidebar
geographical exclusivity
n. a feature, offered by some manufacturers, of distributing keyways and/or combinations for locks to ensure uniqueness in a geographic location
GGGMK
abb. great great grand master key
GGGMK'D
abb. great great grand master keyed
GGM
abb. great grand master key
GGMK
abb. great grand master key
GGMK'D
abb. great grand master keyed
glass relocker
n. a device employing a frangible plate intended to permanently incapacitate a security container's normal opening mechanism if activated by physical attack on the container
GM
abb. grand master key
GMK
abb. grand master key
GMK section
abb. grand master key section
GMK'D
abb. grand master keyed
graduated drivers
n. a set of top pins of different lengths. Usage is based on the height of the rest of the pin stack, in order to achieve a uniform pin stack height. See also "compensate drivers"
grand master key
n. the key which operates two or more separate groups of locks, which are each operated by a different master key
grand master key system
n. a master key system which has exactly three levels of keying
grand master keyed
adj. of or pertaining to a lock or cylinder which is or is to be keyed into a grand master key system
graphite gun
n. a usually flexible container designed to dispense a powdered lubricant
gravity pivot hinge
n. a hinge with complimentary sloped or V shaped knuckles on each leaf that cause gravity to turn the door back to the closed position
great grand master key
n. the key which operates two or more separate groups of locks which are each operated by a different grand master key
great grand master key system
n. a master key system which has exactly four levels of keying
great grand master keyed
adj. of or pertaining to a lock or cylinder which is or is to be keyed into a great grand master key system
great great grand master key
n. the key which operates two or more separate groups of locks which are each operated by different great grand m
