I was under the impression that someone got in on the ground and then made the arm go up while carrying things and at the end of the day, the person made the arm go down and went home.
But cranes are always up at night. So what do they do? How do they work?
In: Technology
they have a ladder for the person to get to the arm, and at the end of the arm there is a pully sytem that lets down a very long chain or cable, that chain/cable is attached to what needs lifting, the the cable is spooled up, bringing the materials with it, and at the end of the day the person in the crane climbs down the ladder to the ground
Latest Answers