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When you step into an elevator and close the door, you had passed through two doors and are now standing in a box (or the elevator car) inside a vertical passageway (called the lift shaft). One door is in the walls of the floor that you got off, and the other door is part of the car itself.
Inside the shaft are hoisting cables attached to the top of the car. The cables run over a sheave (pulley) connected to an electric motor at the top of the shaft. The other end of the cables is connected to a heavy steel weight called a counterweight. When the car goes up, the counterweight goes down; when the car goes down, the counterweight goes up.
How the counterweight reduces to a minimum the power needed to operate the elevator ...
Weight of counterweight = Weight of the car + (about) ½ of its maximum passenger load
So when the elevator operates, it needs power only to lift the weight of the extra passengers in the car; the rest of the weight is balanced by the counterweight.
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∙ 15y ago
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How do you use pulleys in everyday life?
When you are in an elevator, the elevator is a pulley.
Examples of pulleys in everyday life?
Gym pulleys Window blinds elevator pulleys garage door pulleys
Is an elevator a pulley?
Not necessarily. An hydraulic elevator (as in mining), or a grain elevator would not be pulleys. Nor elevator shoes.
Do pulleys systems change how much work you do?
It makes work easier, because its less work, the more pulleys, the easier
Do two pulleys work better than one?
no
Are there pulleys in a passenger elevator?
One kind of elevator uses pulleys, but not all do.
How do you use pulleys in everyday life?
When you are in an elevator, the elevator is a pulley.
Examples of pulleys in everyday life?
Gym pulleys Window blinds elevator pulleys garage door pulleys
Is an elevator a pulley?
Not necessarily. An hydraulic elevator (as in mining), or a grain elevator would not be pulleys. Nor elevator shoes.
How does the elevator work?
Passenger elevators are big pulleys powered by a motor with 6-8 cables or more that pull the elevator cab or the counter weight letting the elevator go up or down.
Where can pulleys be found in the real world?
an elevator =D
How does elevators work?
Passenger elevators are big pulleys powered by a motor with 6-8 cables or more that pull the elevator cab or the counter weight letting the elevator go up or down.
Is the elevator today the same elevator that Elisha Graves Otis invented?
The elevator of today is not the same elevator Otis invented although it has many of the same features and works on the same principles. He worked out the counterweight, the pulleys, and the safety brake, or the basic units. It has all been upgraded.
Do pulleys systems change how much work you do?
It makes work easier, because its less work, the more pulleys, the easier
What are all the simple machines to elevators?
I only know one simple machine which is the wheel and axle sorry! :(
How is a wheel and axle part of a elevator?
In many cases, the elevator car is lifted and lowered via cables. Those cables are wound and unwound on a "spool" as the car goes up and down, or run through pulleys to a counterweight. Whether a spool or pulleys, they may be considered "wheels", and they are mounted onto a shaft that would serve as an axle.
What are pulleys useful in doing work?
when your a mechanic
