Unless otherwise expressly stated, the words and phrases
defined in this section shall be construed throughout this chapter to have
the meanings indicated:
ACCESS POINTS
Any opening in the exterior of a building or structure, as well as
places of ingress and egress.
APPROVED
As applied to a material, mode of construction, piece of equipment
or device, means approved as meeting the requirements of this chapter by the
enforcing authority.
APPROVED GLAZING MATERIAL
Glazing material which is transparent or translucent, such as tempered
glass, laminated glass or wire glass meeting the specifications of the United
States of American Standards Institute 297.1-1966 entitled "USA Standard Performance
Specifications and Methods of Test Transparent Safety Glazing Material" used
in buildings dated 1966, or Underwriters' Laboratories Burglary Resisting
Glazing Material as listed under Underwriters' Laboratories No. UL-972-1972.
ARMORED FRONT
A lock front which consists of two (2) plates. One (1), the underplate,
is fastened to the case; two (2), the finish plate, is fastened to the underplate
and, when in place and fastened, covers the cylinder set screws, thus protecting
them from tampering (used on mortise locks).
ASTRAGAL
Metal strips whose purpose is to cover or close the gap between the
edges of a pair of doors.
BACKSET
The horizontal distance from the face of the lock to the center line
of the knob, keyhole or cylinder.
BOX STRIKE
A strike which also provides a complete housing to protect the belt
opening.
COMMERCIAL BUILDING
All buildings and structures or parts thereof shall be classified
as "commercial" which are used for the transaction of business, for the rendering
of professional services, for display and sales purposes involving stocks
of goods, wares or merchandise incidental to such purposes and accessible
to the public; including, among others, retail stores, shops, salesrooms and
markets.
COORDINATOR
A device used on a pair of doors to ensure that the inactive leaf
is permitted to close before the active leaf.
CRIME HAZARD
A building that, in the discretion of the enforcing authority, presents
a potential source of criminal activity.
CYLINDER GUARD
A hardened free turning ring encircling the exposed portion of the
cylinder to prevent cutting, drilling, prying, pulling or wrenching with common
tools.
CYLINDRICAL (BORED) LOCK
A locking device that incorporates the key-in-knob principle. These
locks shall be lockable on the inside by a push button or a thumb turn (in
the knob) and are able to be unlocked by a key from the outside. Turning the
inside knob retracts the latch bolt allowing egress from the building. Latch
bolts shall have a minimum of one-half-inch throw and shall be provided with
a deadlocking or guarded latch feature. All lock sets shall be provided with
a wrought box strike. Knobs shall be able to withstand three hundred (300)
pound inches of torque without being twisted off. The deadlocking latch bolt
shall be able to withstand four hundred fifty (450) pounds of force without
being depressed.
CYPHER LOCKS
An electronic combination push-button device which remotely unlocks
the door when the proper combinations of buttons are pressed.
DEAD BOLT (OF A LOCK)
A lock bolt having no spring action or bevel and which is operated
by a key or a turn piece.
DEAD LATCH
A spring-loaded latch which is positively held in a locked position
by means of an integral slide trigger mechanism when the door is closed. It
is operated by a key from the outside and a push or thumb turn from the inside.
DEADLOCK
A lock equipped with a dead bolt only. All "deadlocks" must have
a minimum one-inch throw and must be equipped with case hardened steel inserts
to prevent cutting. A wrought box strike must be used.
DOOR
A movable structure for opening or closing an entrance to a building
or room. It may swing on hinges, slide in a groove or revolve on an axis.
DOOR SCOPE
An optical device consisting of a system of lenses, encased for convenient
installation in a solid door, permitting the inside viewer to observe a one-hundred-seventy-five-degree
area of the outside with the door closed. It must be nationally listed to
resist fire.
DOUBLE CYLINDER DEADLOCK
A locking device with a dead bolt that is positively held fast when
in the projected position, minimum throw one (1) inch, operated by a cylinder
from both sides, and shall be supplied with a wrought box strike.
ELECTRIC STRIKE
An electrical device that permits the unlocking of a door from a
remote location or by remote means such as a card reader or cypher lock.
ENFORCING AUTHORITY
The Building and Zoning Department of the Township of Cheltenham
is hereby authorized to enforce the provisions of this chapter.
FOOTCANDLE
A term used to describe the electronically measured flux emitted
by a light source.
GLAZED DOOR
A door containing approved glazing material, in any quantity which
is transparent or translucent.
HATCHWAY
A covering lid or trap door in the roof of a building, designed for
the purpose of access to the roof area of the building.
INSERT
A hardened steel roller, laminated or fixed core, running the length
of a bolt to prevent cutting with a common tool.
JALOUSIE WINDOW
A window or opening furnished with a series of sloping, slanted or
movable slats, arranged so as to admit light or air. These slats may be fixed
or movable. Glass louvered is a description of "jalousies."
LATCH BOLT
A beveled spring bolt usually operated by a knob, handle or thumb
turn that automatically holds the swinging door closed by engaging a strike.
LEVER HANDLE
A metal handle or lever, turned by hand which operates the mechanism
of a locking device.
MORTISE LOCK
A lock designed to be cut into the edge of the door; not applied
to the surface, that operates with a cylinder outside and knobs, handles or
levers both inside and outside. It can be locked or unlocked by the outside
cylinder, push buttons in the edge of the lock face plate or by a thumb turn
on the inside of the door. The "mortise lock" shall always be operable by
the inside knob, handle or lever and shall have a wrought box strike and cylinder
guard.
MULTIPLE DWELLING
All buildings and structures or parts thereof shall be classified
as a "multiple dwelling" in which three (3) or more families or households
live or in which sleeping accommodations are provided for three (3) or more
families or households.
MULTIPLE POINT BLOCKING DEVICE
A system of lever-operated bolts which engages a door opening in
at least two (2) points. The bolts may be operated by a turn handle or lever
on the inside and by a key on the outside.
OPEN BACK STRIKE
A strike that is open in the back for use with a mortise lock set
or a mortise panic device when used in conjunction with a vertical rod panic
device on a pair of doors. The "open back strike" allows either door to be
opened independent of the other door.
PANIC DEVICE
A door-locking device designed to allow instant exit by pushing on
a cross bar [that extends at least two-thirds (2/3) of the way across the
door] that releases the locking bolt or the latch.
PIVOTED DEADLOCK
A locking device with a bolt, not spring-loaded, the bolt of which
swings on a pivot pin and is of the hooked or straight construction. It is
used on narrow stile doors. It is operated by a keyed cylinder on the outside
and a cylinder or thumb turn on the inside.
SECURITY HASP
A hinged metal fastening for a door, window or hatchway; a metal
piece fitted over a staple and fastened by a padlock constructed with a case
hardened staple and locking bar so that the mounting screws or bolts are concealed
when the hasp is closed.
SECURITY HINGE
A device on which a door, gate, window hatchway or lid swings and
constructed with nonremovable pins. If the mounting screws or bolts are accessible
from the exterior of the structure, they shall be attached with security screws
or bolts.
SECURITY LATCH SET AND DEADLOCK
A locking device for use as an entrance lock set on a residential
or multiple-dwelling unit. It shall be constructed with a minimum of one-half-inch
throw on the latch set and a minimum of one-inch throw on the dead bolt. When
the inside latch set knob is turned, the dead bolt will retract for immediate
egress.
SECURITY PADLOCK
A padlock constructed of a one (1) piece hardened steel, forged brass
or laminated case with a hardened steel shackle with heel and toe locking
and a cylinder containing five (5) or more paracentric pin tumblers.
SECURITY STRIKE
A heavy gauge strike with at least four (4) off-center screws one
and one-half (11/2) inches long, permitting full penetration through the jamb
into the rough buck or the reinforcing area of the strike on a metal door.
SELF-CLOSING DEVICE
A device combining both spring and hydraulics to control the closing
and latching of a door and is listed by Underwriters' Laboratories.
RESIDENCES
All buildings and structures or parts thereof shall be classified
in this group in which not more than two (2) families or households live.
SLIDING DOOR BAR
An aluminum or steel bar, permanently mounted on the inside of an
aluminum or steel sliding door, which is designed to swing down into a bracket
to prevent opening the door when closed.
SLIDING DOOR (PATIO TYPE)
A door consisting of one (1) or more movable sections sliding on
guide tracks in a horizontal direction. If it is of aluminum construction,
it must comply with Architectural Aluminum Manufacturers Association (AAMA)
1303.4 - 1973. If it is of wood construction, it must comply with NWMA industry
standard I.S. 2-71.
SLIDING WINDOW
A window consisting of one (1) or more movable sections sliding on
guide tracks in a horizontal direction. If it is of aluminum construction,
it must comply with Architectural Aluminum Manufacturers Association (AAMA)
1302.4 - 1973. If it is of wood construction, it must comply with NWMA industry
standard I.S. 2-73.
SOLID DOOR (HOLLOW METAL)
A metal-covered wood door having no glazed panels. It may be steel
reinforced core, honeycomb core or composition core with a minimum thickness
of one and three-eighths (13/8) inches and an eighteen-gauge minimum steel
skin.
SOLID DOOR (KALAMEIN)
A metal-covered wood door having no glazed panels with a minimum
thickness of one and three-fourths (13/4) inches.
SOLID DOOR (WOOD CORE)
A flush solid core or paneled wood door containing no glazed panels.
It must be a minimum thickness of one and three-fourths (13/4) inches, with
panels being a minimum thickness of one-half (1/2) inch.
SUBSTANTIALLY ALTERED
Any substantial alteration in or addition to the supporting or structural
members of a building, such as bearing walls, bearing columns, bearing beams
or bearing girders; provided that a substantial alteration shall not include,
inter alia, repairs to roof, walls or interior; exterior or interior painting
or redecoration; heating systems; modernization of kitchens or bathrooms,
including moving or replacement of utility lines, gas, water, sewer and electric;
and installation or replacement of kitchen or bathroom equipment.
TAMPER GUARD
A steel cover protecting the strike and locking device on doors swinging
out to the exterior of the building. The "tamper guard" shall extend at least
six (6) inches above and below the center line of the strike or bolt. The
"tamper guard" shall be at least one-eighth (1/8) inch thick and shall be
fastened from the inside of the door with through bolts or by security bolts.
THROW
The length of travel the portion of a dead bolt or latch is exposed
from its recess in the lock case.
THUMB TURN
A metal device used to operate the mechanism of a locking device,
normally requiring only the pressure of the thumb and index finger.
UNIT LOCK SET
A lock set that has all the parts assembled as a unit at the factory
and, when installed in a rectangular notch cut into the door, requires little
or no disassembly. Knobs shall be able to withstand three hundred (300) pound
inches of torque without being twisted off. The dead locking latch bolt shall
be able to withstand four hundred fifty (450) pounds of force without being
depressed. All lock sets shall have wrought box strikes and a deadlocking
or guarded latch feature.