A pulley system is an easy way to lift heavy objects, as compared to lifting the object barehanded. A single pulley only serves to change the direction of the applied force. When two or more forces are used in a system, then the pulley not only changes the direction of applied for, but also multiplies the input force.

What is a track glider?

Gliders are an essential aspect of hanging your curtains, they allow curtains to open and close on a curtain track. … Usually this varies depending on the type of curtains you choose.

What is Traverse cord?

A cord runs through the rod, too, and is attached to a master slide or pulley. The cord extends beyond the rod so that you can use it to open and close the curtains. Custom drapery that’s made for traverse rods sometimes comes with the pins or hooks sewn into the fabric.