A pulley is a simple machine using a wheel and a cord that's designed for lifting. Pulleys help make work easier by redirecting motion or loads. Pulleys are everywhere — look for some around ...

It is usually made of rubber, reinforced with fiberglass cords, and is shaped like a snake, hence the name. The serpentine belt appears in most cars' front of the engine block. The belt consists of ...

This pulley system allows double-hung windows to lift smoothly and easily. Skip to main content Spokane, Washington Est. May 19, 1883. Current Temperature 56°F. Current ...

Run the new cord through the pulley at the top of the window frame down to the sash weight. (Sometimes a straightened-out clothes hanger is helpful in fishing the rope down to the weight.) ...