3d model of Conventional Derrick for technical graphics purposes.
Available in 3Ds Max, 3Ds, PSD, IGES, FBX and OBJ
A derrick is a lifting system composed at minimum of one guyed mast, as in a gin pole, which may also be articulated over a load by means of adjusting its guys. Most derricks have at least two components, both a guyed mast or self-supporting tower, and a growth hinged at its base to provide articulation, as in a stiffleg derrick.
The most basic type of derrick is controlled by three or 4 lines connected to the pinnacle of the mast, which permit it both to cross laterally and cant up and down. To lift a load, a separate line runs up and over the mast with a hook on its free end, as with a crane.
Forms of derricks are commonly discovered aboard ships and at docking facilities. Some massive derricks are installed on dedicated vessels, and known as floating derricks and sheerlegs.
The time period derrick is also utilized to the framework helping a drilling equipment in an oil rig.
The derrick derives its identify from a kind of gallows named after Thomas Derrick, an Elizabethan generation English executioner.