the paths being substantially horizontal; Level-luffing jib-cranes

Full Title

Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes (base supporting structures with legs B65C5/00) > with jibs mounted for jibbing or luffing movements > and adapted to move the loads in predetermined paths > the paths being substantially horizontal; Level-luffing jib-cranes

Child Classifications

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• B66C 23/12 with means for automatically varying the effective length of the hoisting rope or cable
• B66C 23/14 with means, e.g. pantograph arrangements, for varying jib configuration