Cranes are distinguished from hoists, which can lift objects but cannot move them sideways. The design of overhead cranes vary widely according to their major
Multi-chapter guide to Overhead Cranes describing: what an overhead crane is The design of a grab overhead crane can be bridge, gantry, and folding arm.
An overhead building crane consists of parallel runways with a travelling bridge spanning the gap. A hoist or other lifting components of the crane travels
B167-16 - Overhead cranes, gantry cranes, monorails, hoists, and jib cranes. published under the title Overhead travelling cranes - Design, inspection,
Gantry crane means a crane similar to an overhead crane except that the bridge for Fail-safe means a provision designed to automatically stop or safely