212 BC) built his first elevator probably in 236 BC. The earliest known reference to an elevator is in the works of the Roman architect Vitruvius, who reported that Archimedes ( c. Įlevator design by the German engineer Konrad Kyeser (1405) Some elevators can also travel horizontally in addition to the usual vertical motion. High-speed elevators are elevators that move faster than regular elevators and are common in skyscrapers and towers. Due to wheelchair access laws, elevators are often a legal requirement in new multistory buildings, especially where wheelchair ramps are not possible. Languages other than English, such as Japanese, may refer to elevators by loanwords based on either elevator or lift. Several types exist, such as the chain and bucket elevator, grain auger screw conveyor using the principle of Archimedes' screw, or the chain and paddles or forks of hay elevators. In agriculture and manufacturing, an elevator is any type of conveyor device used to lift materials in a continuous stream into bins or silos. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack.
An elevator or lift is a machine that vertically transports people or freight between levels.
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