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broadened definition (original def had left out whole industries, tool-sets and job descriptions.)
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[[Image:AlfredPalmerRamagosa.jpg|right|thumb|250px|A rigger at work on (TVA) [[Douglas Dam]], [[Tennessee]], June 1942]] |
[[Image:AlfredPalmerRamagosa.jpg|right|thumb|250px|A rigger at work on (TVA) [[Douglas Dam]], [[Tennessee]], June 1942]] |
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A '''rigger''' is a person who specializes in the lifting and moving of extremely large or heavy objects, often with the assistance of a [[crane (machine)|crane]] or [[derrick]]. |
A '''rigger''' is a person who specializes in the lifting and moving of extremely large or heavy objects, often with the assistance of a [[crane (machine)|crane]] or [[derrick]] or [[chain hoists]]. |
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==Etymology== |
==Etymology== |
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==Description== |
==Description== |
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Riggers attach loads of |
Riggers attach loads of equipment to cranes or structures using shackles, cables, chains, clamps or straps, employing pulleys, winches or chain hoists. Quick load calculations are necessary for each load and engineering principles are always in play. Riggers use various suspension techniques to get their load around obstacles on a construction site or loading dock or event site to the desired location and height.<ref>{{Cite web|url=http://byf.org/professions|title=Craft Professions: Find out more about the careers available in construction - Build Your Future {{!}} Careers in Construction|last=Florida|first=Group 5 Advertising, Gainesville|website=byf.org|access-date=2016-05-03}}</ref> |
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==See also== |
==See also== |
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Find sources: "Rigger" industry – news · newspapers · books · scholar · JSTOR (May 2016) (Learn how and when to remove this message) |
Arigger is a person who specializes in the lifting and moving of extremely large or heavy objects, often with the assistance of a craneorderrickorchain hoists.
The term comes from the days of sailing ships, where a rigger was a person who worked with rigging, that is, ropes for hoisting the sails. Sailors could put their rope skills to work in lifting and hauling. In an era before mechanical haulage and cranes, ropes, pulleys and muscle power were all that was available to move heavy objects. In time, rigging became a trade in itself, giving rise to the modern usage, with its roots all but forgotten.
Riggers attach loads of equipment to cranes or structures using shackles, cables, chains, clamps or straps, employing pulleys, winches or chain hoists. Quick load calculations are necessary for each load and engineering principles are always in play. Riggers use various suspension techniques to get their load around obstacles on a construction site or loading dock or event site to the desired location and height.[1]
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