Glossary of Terms
PACKAGE STOP: Any of various devices, either manual or mechanical, used to stop flow
on a conveyor.
PARTS CONVEYOR:
A conveyor used to catch and transport small parts, stampings, or scrap
away from production machinery to hoppers, drums, or other operations.
(PC, PCA, PCX, PCH)
PHOTO CELL:
Electrical device used to sense product location.
PIVOT PLATE:
The gusset that attaches the conveyor to the support leg.
PLASTISOL COATING:
Poly-vinyl chloride (PVC) covering for roller tubes to prevent product
damage or marking. Usually (#70 durometer) green or (#90 durometer) red
in color.
PLOW:
A device positioned across the path of a conveyor at the correct angle
to discharge or deflect objects.
POLY-TIER SUPPORT:
Supporting members capable of supporting more than one level of conveyor
at a time. Each tier has vertical adjustment for leveling the conveyor.
POP-OUT ROLLER:
A roller, normally placed on the ends of a belt conveyor used to aid in
transfer, and set in a wide groove to allow it to eject if an object
comes between it and the belt.
PORTABLE CONVEYOR:
Any type of transportable conveyor, usually having supports which
provide mobility.
PORTABLE SUPPORT:
Supporting members that provide conveyor mobility by use of casters or
wheels.
POSITIVE CROWNED PULLEY:
A pulley that tapers equally from both ends toward the center, the
diameter being the greatest at the center. The crown aids in belt
tracking.
POWER BELT CURVE:
A curve conveyor that utilizes a belt, driven by tapered pulleys.
POWER CONVEYOR:
Any type of conveyor that requires power to move its load.
POWERED FEEDER:
A driven length of belt conveyor, normally used to move product
horizontally onto an incline conveyor
PRESSURE ROLLER:
A roller used for holding the driving belt in contact with the load
carrying rollers in a belt driven live roller conveyor.
PRODUCT FOOTPRINT:
The surface of the product that comes in contact with the belt rollers,
or wheels of the conveyor.
PROXIMITY SWITCH: An electrical device to control some function of
a powered conveyor.
PULLEY:
A wheel, usually cylindrical, but polygonal in cross section with its
center bored for mounting on a shaft.
PUSH BUTTON STATION:
An electrical device that operates a magnetic starter
PUSHER:
A device, normally air powered, for diverting product 90C from one
conveyor line to another line, chute, etc.
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