Pulley cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. Hero of Alexandria identified the "pulley" as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulleys are also assembled as part of belt and chain drives in order to transmit power from one rotating shaft to another. A set of pulleys assembled so that they rotate independently on the same axle form a block. Two blocks with a rope attached to one
Rigging (material handling) Rigging (material handling) Rigging is both a noun, which is the equipment and a verb, which is the action of designing and installing the equipment, in the preparation to lift, lower, hoist or move objects. A team of "riggers" design and install the lifting or rolling equipment needed to raise, roll, slide or lift objects such as with a crane or block and tackle. "Rigging" comes from "rig", to set up or prepare. Rigging is the equipment such as wire rope, turnbuckles, clevis, jacks and slings used with cranes and other lifting equipment in material handling and structure relocation. Rigging