A hoisting and lowering mechanism equipped with a car. , used exclusively for carrying materials.

A chair or platform installed on a steel guide rail and driven by a motor for raising or lowering a person. Often used to increase accessibility

for the disabled. Also known as a Stair Lift.

A device which consists of open-

fronted two-person cars suspended by

hoisting chains.

Average time spent by passenger(s) between arriving

in the lobby and leaving the lobby in the car.

Average time spent by the passenger in the lobby to

leaving the car at an upper floor.

In contact service, a customer request which requires a

check of an elevator other than scheduled

maintenance.

A panel mounted in the car containing car operating

controls which govern the operations of the elevator,

such as the opening and closing of door(s), alarm

emergency stop, and other required buttons or key

switches.

A control panel on top of an elevator which, when

activated, renders normal service and allows the

elevator to run at inspection speed from the car top

station only.

A system of regulations pertaining to the design,

manufacture, installation, and maintenance of

dumbwaiters, escalators, and moving walks.

A (group of) device(s) which serves to control (in a

predetermined manner) the system to which it is

connected to.

The outermost lining of a

hydraulic jack or plunger.

Any type of mechanical

lock designed to prevent

the opening of a

hoistway door from

being opened.

A motor-driven device

mounted on the car that

opens and closes the

door.

The power unit which

supplies the energy

necessary to raise and

lower an elevator or

dumbwaiter, or to

drive an escalator,

inclined lift, or moving walk.

The grooved wheel of a

traction-type hoisting machine

over which the hoist rope’s

motion is imparted to the car,

and counterweighed by the

hoist ropes.

The portion of a floor, balcony, or platform for the

loading or discharging of passengers or freight to or

from the computer.

Maximum number of passengers that can be handled

in a given period.

Average time between departure of cars from the

lobby.

Waiting time after registering a call.

An electric device designed to interpret input

conditions in a prescribed manner, and if conditions

are met, to respond and cause contact operation or

create a change in an associated electrical system.

A cable made of electrical conductors which provide electrical connections between dumbwaiter car/material lit and a fixed outlet in hoistway/machine room. the

A group of floors.

A conveying device used to

transport people to and from

building floors. Elevator

motion may be either vertical

or diagonal.

An elevator used for carrying materials and cargo. Allows operator and other persons necessary the convenience of loading and unloading of loads.

An elevator consisting of a car mounted on guide rails,

suspended by tension cables and operated by electric

hoisting machinery. Also referred to as a Traction

Elevator. This type of elevator is used exclusively in

tall buildings and is operated by direct current (dc)

motors.

An elevator system where the car or cab is dependent on

the pressure applied through a system of retractable tubes

containing oil that is pumped into the system from a

reservoir. This type of elevator is used where short travel

and slower speed is required and overhead equipment is

not desired.

An elevator with cables

fastened to and wound around a drum; counterweights are not necessary.

An elevator in which the

movement of the car is

derived by means of

direct contact between

the traction sheave and

the hoisting cables,

caused by friction

between the two

machines.

The elevator hoisting ropes

or cables are placed

around this sheave, which

is an integral part of the

armature. No geared

reduction is applied on this

type of elevator traction

machine.

This machine

consists of a

worm and a gear

interposed

between the

driving motor

and the hoisting

sheave, with the

power from the

motor being

transmitted through reduction gears.

The load-bearing unit of an

elevator, including its

platform, frame, and

enclosure.

Steel wire ropes used for the

suspension of a car and its

counterweight.

Machine that turns the

sheave and lifts or lowers

the car.

Rectangular blocks of

cast

iron stacked

inside a frame, which

is supported at the

opposite ends of the

cables to which the car

is attached. This is

weighed to balance the

car’s weight + 40% of

car capacity.

Vertical tracks that guide

the car and counterweight.

The vertical passageway for the car and

counterweight to move through.

The room usually directly above the hoistway in

which the elevator machine is located.

The portion of the hoistway extending below

the level of the bottom landing to provide for

over-travel and clearance for parts which

require space below the bottom of the car travel.

A combination of push-buttons, contacts, relays,

cams, and devices, which are operated manually

or automatically, to initiate the door operation,

starting, acceleration, retardation, leveling, or

stopping of the car.

Onboard interface that

registers calls and

governs response to

elevator.

Supplies direct

current (dc) to the

motor; used with

generator

field

control.

Devices fastened to the

car

frame

and

counterweight at the top

and bottom, used to

secure their motion along

the guide rails.

The

moving

component of the

brake lined with

frictional material;

when in contact, holds

the elevator at floor

level when power is

applied on the hoist

motor.

Chains/ropes hung

from the bottom of

the

car

counterweight

and

in

order to balance the

weight of hoist ropes.

A device installed at

the bottom of a shaft

(the elevator pit)

used to absorb

impact from the car

prevent the device

from moving when

car motion is

applied to the hoist

motor; also stops

the elevator when

the sole source of

power is the hoist

motor.

A device usually

of carbon or

graphite

composition,

used to connect a

circuit with a DC

motor, generator,

or other electrical

device. Carries current to and from the car.

A device that

causes car and

counterweight

(if required) to

stop in case of

an emergency

by actuating the

safety.

Provides a double

wrap of ropes for

traction and leads

rope over to the

counterweight.

A

device

incorporated in the

bottom beam of the

car frame and

counterweight;

retarding

exerts

force in case of

over-speed

by

gripping the guide

rails.

Automatic devices

that stop the car

within

the

overtravel,

independently of

the

operating

device.

Refers to any of the car switches, push-buttons,

wheels, levers, etc. which enables the operator

control actuation

A component of an

elevator

that gives

stability to a governor

rope.

A mechanism or

control which will

move the car to within

a limited zone, and

stop it at the landing.

This is measured within 18” above or below the

landing.

A direct current (dc) system of control by

varying resistance and reactance in the field

circuit of the hoisting motor, alternating current

motor starts across the line.

One of the electric cables connecting an elevator car to a

fixed electrical outlet in the hoistway, moving along with

the car.

The simplest system among the different modes

of elevator operation. Handles only one call at a

time, providing an uninterrupted trip for each

call.

This type of elevator system control does not

have any call storage provision. Waiting periods

become extremely long, particularly with slow

cars and in a moderately-sized high-rise.

This type of collective operation is selective in

that it is arranged to collect all waiting up calls

on the trip up and all waiting down calls on the

trip down.

The most advanced type of control system

which continuously monitors demand and

controls each car’s motion in response to

demand only, that is; it analyzes all the

possibilities and answers each call in optimum

fashion.

A power-driven inclined continuous stairway for raising

or lowering passengers; also referred to as a moving

stairway or an electric stairway.

A type of passenger-carrying service on which

passengers stand or walk, with its surface remaining

parallel to its direction of motion and is uninterrupted.

(e.g. Otis’ Trav-o-lator.)

Any forms of mass transit, as moving sidewalks or

automatic driverless vehicles, used for shuttling people

around airports or in congested urban areas.

A three-section (3) built-up welded steel trussed

framework which supports the moving stairway

equipment.

Includes the top and bottom sprocket wheel the

endless belt passes around while in operation.

Provides the motive power of the unit.

Designed for maximum safety of persons

stepping on or off the escalator. Includes all

enclosures consisting of deckboards, concave

inside panel skirt guards, handrails, and

combplates.

The side of the escalator extending above the

steps. Also includes the skirt and interior panels.

A continuous belt (chain) attached to the

handrail and indirectly connected to the steps.

A continuous assembly of steps which supports

the passengers.

Located at the top sprocket. Will safely stop a

loaded escalator in the event of a break in the

chain.

Consists of relays and a circuit breaker normally

located near the driving machine.

Wired to the controller and placed near or on

the escalator housing which will stop the

driving machine and apply the brakes.

Located at the top and bottom newels, these

switches start, stop, and reverse the movement

of the escalator steps.

The toothed portion of the threshold plate at

both ends of an escalator or moving walk,

designed to mesh with the grooved surface of

the moving steps or treadway.

The angle of inclination of an escalator shall not

exceed ____ from the horizontal.