- O -
O.b.
abb. operated by, as used in keying schedules
occupancy
type
adj. the use to
which an area of a building is put with reference to the
prevailing life safety or building code
odometer
method
n. a means of
progressing key bittings using a progression sequence of
right to left.
Oe
abb. oersted
oersted
n. a unit of magnetic
field strength which is commonly used in the magnetic
recording industry
offset
cam
n. a cam which is
bent to have its ends in different planes
oil cup
n. a receptacle for
lubricant on a machine
one
bitted
adj. of or
pertaining to a cylinder which is or is to be combinated
to keys cut to the manufacturer's reference number one
bitting
one
column progression
n. a process
wherein key bittings are obtained by using the cut
possibilities in one column of the key bitting array
one pin
master key
n. a master key for
all combinations obtained by progressing only one bitting
position
one shot
adj. of or pertaining to a wire run that has an unobstructed line of
sight
one-way deadbolt
n. a deadbolt operable from only one side
of a door
open back strike
n. a strike, typically used on double door
applications, that has an unenclosed opening opposite the
lip edge
open face dial
n. a combination lock actuator designed to have all the
numbers visible at once
open
gated
adj. pertaining to
a lever tumbler whose gate is in the edge of the tumbler
open loop
n. a detection
circuit where continuity between branches
will result in a reportable condition
opening
index
n. the index or
mark to which a combination is dialed in order to effect
an opening
operating
key
n. any key which
will properly operate a lock or cylinder to lock or
unlock the lock mechanism and is not a control key or
reset key, see also "change key"
operating
shear line
n. any shear line
which allows normal operation of a cylinder or lock
original
key blank
n. a key blank
supplied by the lock manufacturer to fit that
manufacturer's specific product
out of time
adj. of or pertaining
to a condition where a mechanical part is misoriented and
cannot function correctly
overhead concealed closer
n. a closer designed for installation out of view in the door header
area
overhead
stop
n. a door stop
which contacts the door near the top
override code
n. in an electronic lock, a factory-set or user-set
combination that will always open the lock
override combination
n. in certain locks with a user changeable
combination, a second combination which allows access at
all times. It is usually factory set and may not be field
changeable.
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