| Number |
| |
| |
973 |
Crane and Hoist Operators | Workers in this unit group operate cranes and other hoisting equipment. Their functions include: operating a bridge or gantry crane in which the lifting gear can be moved along an overhead bridge which moves on rails; operating a stationary crane equipped with job (boom); operating a crane consisting of turning metal tower, mounted on rails, equipped with a mobile or fixed jib (boom); operating a crane mounted on wheels or crawler tracks and moveable under its own power; operating powered hoisting equipment, usually consisting of mobile cage or platform to raise or lower cages or skips carrying materials or men in a mine; giving signals controlling movement of cages used to raise or lower men, cars, supplies between various levels and surface of mine; operating hauling or lifting device consisting mainly of cable and a hand- or power-driven drum; controlling opening and closing of bridge for the passage of road or water traffic; performing related tasks. |
|
Show Minor Group Search for Images
© 2024 IISH Amsterdam
|
