A jib or jib arm is the horizontal or near-horizontal beam used in many types of

crane 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) ...

to support the load clear of the main support. An archaic spelling is gib. Usually jib arms are attached to a vertical mast or

tower A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifi ...

or sometimes to an inclined boom. In other jib-less designs such as

derrick A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, an ...

s, the load is hung directly from a boom which is often anomalously called a jib. A camera jib or jib arm in

cinematography Cinematography (from ancient Greek κίνημα, ''kìnema'' "movement" and γράφειν, ''gràphein'' "to write") is the art of Film, motion picture (and more recently, electronic video camera) photography. Cinematographers use a lens (o ...

is a small crane that holds nothing but the camera.Scott Schaefermeyer ''Digital Video Basics'' 1418865133 2012 p109 "A jib arm is basically a small crane that holds nothing but the camera. Large jib arms require somebody to move and control the jib while the camera operator controls the camera. "

References

{{Authority control Mechanical engineering