Emergency pull-wire switches have become established as "extended emergency-stop" buttons, especially along conveyor belts: one pull on the wire, and the relevant part of the machine comes to a safe ...

Explains how pulleys work to lift heavy weights more easily. A fixed pulley changes the direction of force, allowing for easier lifting, while a movable pulley reduces the amount of force needed to ...

We still remember the old days when finding a pulley system for your Chevy involved digging around in scrapyards for just the right combination. We would then clean up the scavenged parts and more ...

Besides sending lots of smile-inducing horsepower to your rear tires, the crank also powers all the engine accessories necessary to keep your Chevy rolling down the highway. To do this, power is ...