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Unformatted text preview: area and a maximum height of 1.20 m., the capacity of which does not exceed 277
kilos, used exclusively for carrying materials.
ELEVATOR - A hoisting and lowering mechanism equipped with a car or platform which moves
in guides in a vertical direction serving two or more floors of a building or structure. Movement
of the car may be controlled by gravitational, manual or mechanical power.
ELEVATOR LANDING - That portion of a floor, balcony or platform for loading or discharging
passengers or freight to or from the elevator.
ELEVATOR WIRE ROPES - Steel wire ropes attached to the car frame or passing around
sheaves attached to the car frame from which elevator/dumbwaiter cars and their counterweights
ENCLOSED - Means that the moving parts of a machine are so guarded that physical contact by
any part of the human body is precluded or prevented. This does not however prohibit the use of
hinged, sliding or otherwise removable doors or sections to permit inspection, lubrication or
ESCALATOR - A power driven, inclined, continuous stairway for raising or lowering
EVAPORATION - That part of the AC/Refrigeration system in which liquid refrigerant is
vaporized to produce refrigeration.
EXTERNAL INSPECTION - An inspection made on a boiler during operation.
GUARDED - Shielded, fenced or otherwise protected by means of suitable enclosure guards,
covers or standard railings, so as to preclude the possibility of accidental contact or dangerous
approach to persons or objects. HOIST - An apparatus for raising or lowering a load by the application of a building force, but
does not include a car or platform. It may be based-mounted, hook suspension, monorail, overhead, simple drum type or trolley suspension.
HOISTWAY - A shaftway for the travel of one or more elevators or dumbwaiters.
INTERNAL INSPECTION - An inspection made when a boiler is shut down, with hand-holes,
manholes, or other openings opened or removed to permit inspection of the interior.
LIQUID RECEIVER - A vessel permanently connected to a system by inlet and outlet pipes for
storage of a liquid refrigerant.
LOCOMOTIVE BOILER - A boiler mounted on a self-propelled track locomotive used to
furnish motivating power for traveling on rails.
LOW PRESSURE HEATING BOILER - A boiler operated at pressures not exceeding 1.05
kg/sq.m. with steam or water temperature not exceeding 250°F.
MACHINE - The driven unit of an equipment.
MACHINE HOUSE - An enclosure for housing the hoisting mechanism and power plant.
MACHINE PARTS - Any or all moving parts of a machine.
MECHANICAL EQUIPMENT, MACHINERY OR PROCESS - Includes steam engines, internal
combustible engines, boilers, turbines, crushers, mills, mixers, pumps, compressors, cranes,
conveyors, hoists, elevators, escalators, dumb waiters, pipe lines, line-shaftings, air conditioning,
refrigeration, ventilation, pressure vessels and the like.
MECHANICAL WORKS, PLANT - Includes steam plants, internal combustion engine plants,
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- Fall '12