Monday, March 14, 2016

Elevator by Gus

There is not an exactly answer of who or how it was invented the elevator,  elevator began with simple cables, pulleys and a table, and there's a theory that who invented the elevator was Elisha Oti, Elevator (US) or lift (UK) is a type of vertical transportation that moves people or goods between floors (levels, decks) of a building, vessel, or other structure. Elevators are generally powered by electric motors that either drive traction cables or counterweight systems like a hoist, or pump hydraulic fluid to raise a cylindrical piston like a jack.

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 or forks of hay elevators.

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