An elevator or lift is a vertical transport system designed to move people or goods between different levels. It can be used to ascend or descend in a building or in an underground construction. It consists of mechanical, electrical and electronic parts that work together to achieve a safe means of mobility. The initial reference to an orange county elevator service appears in the works of the Roman architect Vitruvius, who says of Archimedes (ca. 287 BC - Ca. 212 BC).
This electroleva is retractable, ie traveling with cabin retracted not to press the strips of each floor through which passes (which would allow the opening of each of the doors and stopping the elevator). The reverse process occurs when the lift is required on another floor: the electroleva retracts before departure and only expands when it reaches the floor.
In the seventeenth century, there were prototypes in some buildings. Ancient and medieval lifts used drive systems based on crane mechanisms. The invention of another system based on the screw drive was perhaps the most important technology, which ultimately led to the creation of modern passenger variants.
The counterweight is also led by guides. Its function is exactly load balancing to facilitate the work of the engine and not force too much to handle the same load. Tractors crane groups are usually formed by a motor coupled to a speed reducer, whose output shaft is mounted sheave trailing cables by adhesion. In the lower or upper ends of car frame is a safety system, whether instantaneous or gradual.
This system releases wedges against the guides to stop the car in case you get off at the wrong speed limit, preventing the car from falling freely even in the event that all cables are holding the cab are severed. In elevators today and according to regulations in each country or region also slows uphill, ie when the car goes. Sometimes a braking system is also installed in the counterweight.
The control system operates lift by electronic means in charge of running the direction of movement and selecting the floors in which it must stop. In 1925, the Otis Elevator Company Elevator Company invented the first control system with memory for groups of lifts, allowing automation and bypassing the default system.
By 1853 he had established his own business to manufacture elevators, the elevator company Otis Elevator Company, which still exists today and is the first elevator company in the world has since installed 2.5 million elevators and escalators throughout the planet. The following year, Otis made the demonstration of this invention in an exhibition that took place in New York.
This emergency system can also be called "Rescue-matic". In ancient elevators, pressing the STOP button produced an instantaneous stopping of cabin, the traveler may be trapped between floors with no possibility of exit. In current models, this button has ceased to exist on the boards cabin, leaving only the alarm button and emergency device. For use by passengers in an emergency. Sometimes it is connected to a phone line from which you can request assistance in the event of being trapped.
This electroleva is retractable, ie traveling with cabin retracted not to press the strips of each floor through which passes (which would allow the opening of each of the doors and stopping the elevator). The reverse process occurs when the lift is required on another floor: the electroleva retracts before departure and only expands when it reaches the floor.
In the seventeenth century, there were prototypes in some buildings. Ancient and medieval lifts used drive systems based on crane mechanisms. The invention of another system based on the screw drive was perhaps the most important technology, which ultimately led to the creation of modern passenger variants.
The counterweight is also led by guides. Its function is exactly load balancing to facilitate the work of the engine and not force too much to handle the same load. Tractors crane groups are usually formed by a motor coupled to a speed reducer, whose output shaft is mounted sheave trailing cables by adhesion. In the lower or upper ends of car frame is a safety system, whether instantaneous or gradual.
This system releases wedges against the guides to stop the car in case you get off at the wrong speed limit, preventing the car from falling freely even in the event that all cables are holding the cab are severed. In elevators today and according to regulations in each country or region also slows uphill, ie when the car goes. Sometimes a braking system is also installed in the counterweight.
The control system operates lift by electronic means in charge of running the direction of movement and selecting the floors in which it must stop. In 1925, the Otis Elevator Company Elevator Company invented the first control system with memory for groups of lifts, allowing automation and bypassing the default system.
By 1853 he had established his own business to manufacture elevators, the elevator company Otis Elevator Company, which still exists today and is the first elevator company in the world has since installed 2.5 million elevators and escalators throughout the planet. The following year, Otis made the demonstration of this invention in an exhibition that took place in New York.
This emergency system can also be called "Rescue-matic". In ancient elevators, pressing the STOP button produced an instantaneous stopping of cabin, the traveler may be trapped between floors with no possibility of exit. In current models, this button has ceased to exist on the boards cabin, leaving only the alarm button and emergency device. For use by passengers in an emergency. Sometimes it is connected to a phone line from which you can request assistance in the event of being trapped.
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