Elevator. Elevator. In agriculture and manufacturing, an elevator is any type of conveyor device used to lift materials in a continuous stream into bins or silos. Several types exist, such as the chain and bucket bucket elevator, grain auger screw conveyor using the principle of Archimedes' screw, or the chain and paddles/forks of hay elevators. Languages other than English may have loanwords based on either elevator (e.g., Japanese and Korean) or lift (e.g., Cantonese and Russian). Because of wheelchair access laws, elevators are often a legal requirement in new multistory buildings, especially where wheelchair ramps would be impractical. History[edit] Pre-industrial era[edit] The first reference to an elevator is in the works of the Roman architect Vitruvius, who reported that Archimedes (c. 287 BC – c. 212 BC) built his first elevator probably in 236 BC.[1] In some literary sources of later historical periods, elevators were mentioned as cabs on a hemp rope and powered by hand or by animals.
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