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).
Currently, the tallest building world, the Burj Khalifa Tower in Dubai, which is 828 m high has lifts from the Otis Elevator Company climbing the longest distance in the world: 504 meters; also has access lift on the world's highest: 638 meters; and lift the world's fastest double cabin: 10 meters per second.
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.
Parachute failure or imbalance of traction cables (a. Electro-dynamic). Their movement is instantaneous and progressive, and has high and medium speed. It consists of a lever system whose motion actuates wedges or rollers that are in a box along with the guides (box wedges). When the fall of the car is given or exceeds the rated speed, the guides are bitten by wedges or rollers, thus arresting the free fall.
Cruise control mechanism comprises two pulleys, one installed in an engine room and another vertically aligned with the first in the bottom of a hole. Both passes a steel cable whose ends are connected, one to a fixed point on a frame of cabs, and also to a lever system whose end is at the top of a frame. The cable is attached to a car at all times and is completely independent of traction cables, that is, not involved in securing the car and counterweight.
The upper limiter pulley cable abruptly stops when the speed of said pulley (and therefore the cabin) exceeds 25% of nominal speed. The governor rope activates the lever system, called parachuting. It also incorporates an electrical contact for both wedging mechanism cabin and the upper pulley that cuts the main series to keep the engine running after the car has been stuck.
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.
Keep in mind that an lift has multiple safety devices to prevent any accidents and if any device fails, the elevator is automatically stopped. Any old lift has contacts on exterior doors, car doors, which break contact of cables. System security is a key element and to maximize this aspect several specific devices are used. An electromechanical door interlock helps access to the floors, making it impossible to open all doors except the floor in the cabin.
Currently, the tallest building world, the Burj Khalifa Tower in Dubai, which is 828 m high has lifts from the Otis Elevator Company climbing the longest distance in the world: 504 meters; also has access lift on the world's highest: 638 meters; and lift the world's fastest double cabin: 10 meters per second.
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.
Parachute failure or imbalance of traction cables (a. Electro-dynamic). Their movement is instantaneous and progressive, and has high and medium speed. It consists of a lever system whose motion actuates wedges or rollers that are in a box along with the guides (box wedges). When the fall of the car is given or exceeds the rated speed, the guides are bitten by wedges or rollers, thus arresting the free fall.
Cruise control mechanism comprises two pulleys, one installed in an engine room and another vertically aligned with the first in the bottom of a hole. Both passes a steel cable whose ends are connected, one to a fixed point on a frame of cabs, and also to a lever system whose end is at the top of a frame. The cable is attached to a car at all times and is completely independent of traction cables, that is, not involved in securing the car and counterweight.
The upper limiter pulley cable abruptly stops when the speed of said pulley (and therefore the cabin) exceeds 25% of nominal speed. The governor rope activates the lever system, called parachuting. It also incorporates an electrical contact for both wedging mechanism cabin and the upper pulley that cuts the main series to keep the engine running after the car has been stuck.
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.
Keep in mind that an lift has multiple safety devices to prevent any accidents and if any device fails, the elevator is automatically stopped. Any old lift has contacts on exterior doors, car doors, which break contact of cables. System security is a key element and to maximize this aspect several specific devices are used. An electromechanical door interlock helps access to the floors, making it impossible to open all doors except the floor in the cabin.
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