ASME B20.1:2018 pdf free download – Safety Standard for Conveyors and Related Equipment
conveyor, electrified monorail: a conveyor consisting of a network of tracks or guide rails that may be installed hori- zontally, vertically, inclined, or in combination with one or more self-propelled cars or trolleys that move indepen- dently under automatic control from one point to another within the track network, carrying material in containers or by devices suspended from or attached to the cars or trolleys. conveyor, en masse: a conveyor, comprised of a series of skeleton or solid flights on an endless chain or other linkage, that operates in horizontal, inclined, or vertical paths within a closely fitted casing for the carrying run. Bulk material is conveyed and elevated in a substan- tially continuous stream with a full cross section of the casing. conveyor, extendable: a conveyor that may be length- ened or shortened to suit operating needs. conveyor, flight: a type of conveyor comprised of one or more endless propelling media, such as chain, to which flights are attached and a trough through which material is pushed by the flights. conveyor, folding belt: a bulk materials trough belt conveyor that has a longitudinally grooved belt cover. These grooves allow the outer edges of the belt to form flaps. These flaps are folded over the conveyed product on the carry side of the conveyor enclosing the product. The flaps are held in place on top of the product by containment idlers. Folding belt conveyors enclose the conveyed material on the carrying side and contain carryover material on the noncarrying side.
conveyor, horizontal reciprocating: a conveyor that progressively advances material by a back-and-forth motion of its conveying medium. It may be equipped with hinged flights or tilting dogs or pushers. These units operate generally in the range of 0 deg to 30 deg from the horizontal. conveyor, inclined reciprocating: a reciprocating power- or gravity-actuated unit (not designed to carry passengers or an operator) that receives objects on a carrier. These units operate on inclines generally in the range of 30 deg to 70 deg from the horizontal. conveyor, live roller: a series of rollers over which objects are moved by the application of power to all or some of the rollers. The power-transmitting medium is usually belting or chain. conveyor, material encapsulating: a bulk materials trough belt conveyor that has a belt(s) that completely encloses the conveyed product. conveyor, mobile: a conveyor, supported on a structure, that is movable under its own power and includes, but is not limited to, radial stackers, winged stackers, reclaiming conveyors, and shiploaders. These conveyors normally handle bulk material.
conveyor, oscillating: a type of vibrating conveyor having a relatively low frequency and large amplitude of motion, usually powered by a rotating eccentric. conveyor, overland: a single or series of belt conveyors designed to carry bulk material across country, usually following the general contour of the land. conveyor, pipe: a bulk materials belt conveyor in which the belt is formed into a circular or oval cross section by the idler arrangement on both the carrying and return sides. This design encloses the conveyed material on the carrying side and contains carryover material on the noncarrying side. conveyor, portable: a transportable conveyor that is not self-propelled, usually having supports that provide mobility. conveyor, power and free: a conveying system wherein the load is carried on a trolley or trolleys that are mechani- cally propelled through part of the system and may be gravity or manually propelled through another part. This arrangement provides a means of switching the free trolleys into and out of adjacent lines. The spur or subsidiary lines may or may not be powered.