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Tower Cranes
A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It is mainly used for lifting heavy objects and transporting them to other places. The device uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of a human. Cranes are commonly employed in transportation for the loading and unloading of freight, in construction for the movement of materials, and in manufacturing for the assembling of heavy equipment. The first known crane machine was the shaduf, a water-lifting device that was invented in ancient Mesopotamia (modern Iraq) and then appeared in ancient Egyptian technology. Construction cranes later appeared in ancient Greece, where they were powered by men or animals (such as donkeys), and used for the construction of buildings. Larger cranes were later developed in the Roman Empire, emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane Machine Slewing Platform
Crane or cranes may refer to: Common meanings * Crane (bird), a large, long-necked bird * Crane (machine), industrial machinery for lifting ** Crane (rail), a crane suited for use on railroads People and fictional characters * Crane (surname), including a list of people and fictional characters with the surname * Crane (given name), a list of people Places Barbados * The Crane, Saint Philip, Barbados United Kingdom * River Crane, Dorset * River Crane, London, a small river of London, branch to the Thames United States * Crane, Indiana, a town * Crane, Missouri, a town * Crane, Montana, a census-designated place and unincorporated community * Crane, Oregon, a census-designated place and unincorporated community * Crane County, Texas ** Crane, Texas, a city and the county seat * Crane, Virginia, an unincorporated community * Crane, Washington, an unincorporated community * Crane Creek (other) * Crane Beach, Ipswich, Massachusetts * Crane Island (Washington), one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
