Part 6 Cranes, Hoists and Lifting Devices

Polar — a bridge or gantry crane that travels on a circular track. Tower — a crane in which a boom, swinging jib or other structural member is mounted on a vertical mast or tower. See Figure 6.5. o Climber — a crane erected upon and supported by a building or other structure and that may be raised or lowered to different floors or

  Devices, Lifting, Crane, Hoists, Polar, Hoists and lifting devices