How does a chain pulley work?
In a educational video for kids about pulleys, a device named a "chain pulley" was mentioned, which was supposed to keep the load up without having to pull on it continuously (like with a tackle and block). I find this hard to believe (especially
...part of a standard chain hoist setup.
Commercial chain pulleys, also called chain hoists, are designed to lift very heavy loads up to 25 tons safely. To do this they include a brake assembly to prevent the load from coming back down until
