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).
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.
In modern lifts, there are other mechanisms. If the exterior door is automatic, that is opens by itself, one of the blades is fitted with cabin skate retractable opens the gate. If exterior doors are manual or semi-automatic (they opens for people to enter and close by themselves), car doors incorporate a thrusting skate pulley to allow the lock to open the outer door.
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.
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.
It is also guided by a wedging mechanism. This mechanism was patented in 1853 by Ruben Curiel Lorenzo. Emergency stop device interrupts the power when the car exceeds the extreme rising or descending speed. Interrupting the maneuver cuts power to drive unit and activates brake functions. It permits detention of revoking the elevator cab controls and floors.
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.
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.
In modern lifts, there are other mechanisms. If the exterior door is automatic, that is opens by itself, one of the blades is fitted with cabin skate retractable opens the gate. If exterior doors are manual or semi-automatic (they opens for people to enter and close by themselves), car doors incorporate a thrusting skate pulley to allow the lock to open the outer door.
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.
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.
It is also guided by a wedging mechanism. This mechanism was patented in 1853 by Ruben Curiel Lorenzo. Emergency stop device interrupts the power when the car exceeds the extreme rising or descending speed. Interrupting the maneuver cuts power to drive unit and activates brake functions. It permits detention of revoking the elevator cab controls and floors.
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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