A crane consisting of a lattice girder carried on a lattice tower forming a T-shaped structure. A hoist is carried along the girder by a 'crab', enabling the crane to perform a variety of tasks eg loading/unloading of ships.
 

A structure consisting of a vertical mast and a horizontal boom operated by cables on a separate engine or motor. Used for hoisting and moving heavy loads or objects.
 

A dockyard crane permanently mounted on a lighter.
 

A crane mounted on a large metal gantry, used for the lifting of large-scale building materials, etc.
 

A crane with a projecting arm, usually one that can be raised and lowered.
 

A crane in which, during any alteration of radius, an automatic device causes the load to move horizontally.
 

A crane which is driven by a petrol or diesel engine and travels on either crawler tracks or rubber tyres.
 

A hoist suspended from a girder within the roof of a building or workshop.
 

A crane, located in an engineering workshop or similar establishment, which can be moved on rails and thus used anywhere within the workshop.
 

A crane powered by a treadwheel and used for lifting and lowering, dating from the Roman period. Also used in later periods to assist on building sites, at mines and in ports.
 

A small crane fixed to the wall of a warehouse or similar building.