ASME B20.1 pdf free download

ASME B20.1-2021 pdf free download.Safety Standard for Conveyors and Related Equipment.
4 DEFINITIONS1
accessible: applies to hazardous objects not guarded or isolated and likely to be contacted inadvertently.
actuator: a device that initiates the action of controls or controllers and is manually operated. The actuator may be a push button, toggle switch, foot pedal, hand lever, handset timer, or any other device that performs the described function.
antirunaway: a safety device that stops a declining. Inclined, or vertical conveyor and thus prevents it from moving away in the event of a mechanical or electrical failure.
apron pan: one of a series of overlapping or interlocking plates or shapes that, together with others, form the conveyor bed.
automatically controlled: describes the operation by the action of a mechanism that is initiated bysome impersonal influence, such as a conveyor that is started by a low-level bin indicator.
backstop: a mechanical device to prevent reversal of a loaded conveyor under action of gravity when forward travel is interrupted.
(a) that part of a conveyor upon which the load or carrying medium rests or slides while being conveyed
(b) in bulk material conveyors, the mass of material being conveyed
belt idler: a roller or series of rollers that supports the belt of a belt conveyor.
belt tripper: a device incorporating a system of pulleys that causes the conveyor belt to discharge material at one or more points along the length of the conveyor.
boom: a cantilevered member or structure that may be hinged, fixed, or pivoted.
brake: a friction device for slowing down conveyor components, bringing conveyor equipment to a controlled stop, holding traveling or traversing equipment in a selected location, preventing reverse travel, and/or controlling overspeed due to the action of gravity.
bunker: a large bin or compartment for storage of bulk materials.
car unloader: a type of conveyor characterized by a shallow, horizontal loading section that enables It to receive and unload material from hopper bottom cars without requiring a pit or other excavation.
carrier:
(a) a device attached to or hung from trolleys to support the load
(b) the receptacle in which objects are placed for transmittal through a conveying system
(c) the moving part of a vertical or inclined reciprocating conveyor that supports the load
cart- see truck.
chain: a series of links pivotally joined together to form a medium for conveying or transmitting motion or power. General classes of chain common to conveyors are detachable, pintle, combination, roller, rivetless, coil, inverted tooth, and bar link chains.
chute: a trough through which bulk materials or objects are directed and lowered by gravity. The trough may be open or enclosed, straight or curved.
control: the system governing the starting. stopping, direction of motion, acceleration, speed, retardation, identification, and function of the moving member in a predetermined manner.
cOntroller: an electromechanical device or assembly of devices for starting, stopping, accelerating, or decelerating a drive or serving to govern in some predetermined manner the power delivered to the drive.
conveying medium: that portion of a conveyor that moves or carries materials, packages, or objects.
conveyor: a horizontal, inclined, or vertical device for moving or transporting bulk material, packages, or objects in a path predetermined by the design of the device and having points of loading and discharge, flxed or selective. Included are skip hoists and vertical reciprocating and inclined reciprocating conveyors. Typical exceptions are those devices known as industrial trucks, tractors, trailers, tiering machines (except pallet load tierers), cranes, hoists, power shovels, power scoops, bucket drag lines, trenchers, platform elevators designed to carry passengers or an operator, manlifts, moving walks, moving stairways (escalators), highway or railway vehicles, cahieways, tramways, dumhwaiters, pneumatic conveyors, robots, or integral machine transfer devices.
conveyor, apron: a conveyor in which a series of apron pans forms a moving bed.
conveyor, belt an endless fabric, rubber, plastic, leather. or metal belt operating over suitable drive, tall end, and bend terminals and over belt Idlers or slider bed for handling bulk materials, packages, or objects placed directly upon the belt.ASME B20.1 pdf download.