In 1857, a passenger lift was installed in a department store located on Broadway, corner of Broome Street in New York City. Steam moved it up five floors in under a minute. Back then, that was fast. In contrast to that, today orange county elevator service in tallest buildings, such as the Sears Tower in Chicago, quickly rise 412 meters (1353 feet) in less than a minute.
He had built a first elevator probably in 236 BC, elevators were mentioned as cabs held with hemp rope and powered by hand or by animals. It is supposed that elevators of this type were installed in Sinai monastery in Egypt. In 1000, the Book of Secrets by Ibn Khalaf al-Muradi, Islamic Spain described the use of an winch and lifting device to raise a heavy weight to hit and destroy a fort.
The cabin is the basic element of an elevator system. It consists of two parts: the frame or chassis and the box or cabinet, or by a self-supporting cab. The frame is supported by vertical guides. Most lifts use a counterweight mechanism, which has a mass equal to that of its cabin, plus half of maximum permissible load, so that the engine does not have to move the entire mass of the car, but only a fraction. As a result, an empty lift is lighter than the counterweight.
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.
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.
Oddly enough, Elisha Otis's talent as a designer was discovered while working as a master mechanic in a factory making bed frames Albany (New York State). He invented many labor-saving devices, and so was sent to New York, where he could better use his ability. There he designed and built the first lift with automatic safety mechanism in case there was any fault in a cable.
Currently, lifts operate controls with electronic microprocessors using artificial intelligence algorithms to determine how to manage the response to requests for coordinating the various teams to work together. It was also invented by Otis in 1979. The boxes detect system errors, which in case of failure is displayed by an error code so that the lift mechanic knows the reason for stopping.
On August 30, 1957 a system of automatic gates was applied in passenger elevators, regardless of having to open and close the door manually. Another type known as paternoster consisted of a series of open cabins, limited capacity, moved slowly on two adjacent holes, upon reaching the top it switched to another hole by falling in a continuous cycle, without stopping. Thus, moving passengers up and down in a building. It was handy in places of high traffic between floors, but had security problems, so it was replaced with the much safer escalators.
He had built a first elevator probably in 236 BC, elevators were mentioned as cabs held with hemp rope and powered by hand or by animals. It is supposed that elevators of this type were installed in Sinai monastery in Egypt. In 1000, the Book of Secrets by Ibn Khalaf al-Muradi, Islamic Spain described the use of an winch and lifting device to raise a heavy weight to hit and destroy a fort.
The cabin is the basic element of an elevator system. It consists of two parts: the frame or chassis and the box or cabinet, or by a self-supporting cab. The frame is supported by vertical guides. Most lifts use a counterweight mechanism, which has a mass equal to that of its cabin, plus half of maximum permissible load, so that the engine does not have to move the entire mass of the car, but only a fraction. As a result, an empty lift is lighter than the counterweight.
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.
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.
Oddly enough, Elisha Otis's talent as a designer was discovered while working as a master mechanic in a factory making bed frames Albany (New York State). He invented many labor-saving devices, and so was sent to New York, where he could better use his ability. There he designed and built the first lift with automatic safety mechanism in case there was any fault in a cable.
Currently, lifts operate controls with electronic microprocessors using artificial intelligence algorithms to determine how to manage the response to requests for coordinating the various teams to work together. It was also invented by Otis in 1979. The boxes detect system errors, which in case of failure is displayed by an error code so that the lift mechanic knows the reason for stopping.
On August 30, 1957 a system of automatic gates was applied in passenger elevators, regardless of having to open and close the door manually. Another type known as paternoster consisted of a series of open cabins, limited capacity, moved slowly on two adjacent holes, upon reaching the top it switched to another hole by falling in a continuous cycle, without stopping. Thus, moving passengers up and down in a building. It was handy in places of high traffic between floors, but had security problems, so it was replaced with the much safer escalators.
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